Topsøe SCR DeNOx

Technology and Catalyst 
Application index 

 Page 

Boilers 

Coal-fired boilers, high-dust installations ................................................................................. 2 

Coal-fired boilers, low-dust installations................................................................................... 6

 Bio-fuel-fired boilers, high-dust installations............................................................................ 7 

 Bio-fuel-fired boilers, low-dust installations... .......................................................................... 8 

 Oil-fired boilers ........................................................................................................................ 9 

 Gas-fired boilers .................................................................................................................... 10 

 Pet-coke-fired boilers ............................................................................................................ 12 

Engines 

 Stationary diesel engines ....................................................................................................... 13 

 Marine diesel engines ............................................................................................................ 16 

 Gas engines ........................................................................................................................... 17 

Gas turbines.................................................................................................................................... 19 

Refineries/petrochemical plants ................................................................................................... 27 

Waste incineration plants.............................................................................................................. 30 

Other applications ......................................................................................................................... 32 

630 References: 

68 Coal-fired boilers 

50 Oil- and gas-fired boilers 

9 Bio-fuel-fired boilers 

2 Pet-coke-fired boilers 

68 Stationary diesel engines 

20 Marine diesel engines 

28 Gas engines 

181 Gas turbines 

114 Refinery/Petrochemical app. 

23 Waste incineration 

67 Other applications
SCR DeNOx technology and catalyst 2/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Coal-fired boilers 

High-dust Installations 

Belgium

Electrabel NV 

• Langerlo Unit 2 

(Deutsche Babcock) 

250 MW 80% DNX-558 Catalyst 

Design of ammonia 

storage 

2000 

China 

Guohua 

 Taishan Unit 5

(Topsoe/Korea Cottrell) 

600 MW 80% DNX-864 Catalyst 

System Design 

Hardware 

2006 

Fujian Huadian

 Kemen Units 3 &4 

(Shanghai Longking) 

2 x 600 MW 80% DNX-864 Catalyst 2008 

Fujian Hongshan 

 Unit 1 and 2 

(Shanghai Longking) 

2 x 600 MW 50% DNX-864 Catalyst 2009 

Shanghai Electric Power Co

 Wujing TPP Units 1 and 2 2 x 300 MW 80% DNX-964 Catalyst 2009 

Taiyuan Iron & Steel Company 

 Units 1 & 2 

(TISCO) 

2 x 300 MW 80% DNX-684 Catalyst 

System Design 

Hardware 

2008 

Yangcheng Int. Power Gen 

 Yangcheng Unit 8 

(DETE) 

600 MW 80% DNX-464 Catalyst and 

system Design 

2007 

YanShan Petrochemical 

 Boiler 

(Envirgy) 

312,000 Nm3

/hr 90% DNX-858 Catalyst 2008 

Denmark 

Elkraft, Stigsnæs 

• Demonstration Plant 4 MW 90% DNX-362 Catalyst 1987-1992 

DONG Energy

 Ensted Unit 3 

(ABB, Deutsche Babcock, 

600 MW 88-93% DNX-464 

Catalyst and 

system design 

Hard ware

1996 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 3/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Topsøe) Construction 

DONG Energy

 Esbjerg Unit 3 

(Fisia Babcock)

400 MW 90% DNX-674 Catalyst 2004 

DONG Energy

 Studstrup Unit 3 

(B&W Energy)

350 MW 90% DNX-664 Catalyst 2007 

DONG Energy

 Avedøre Unit 1 

(Haldor Topsøe) 

250 MW 80% DNX-664 Catalyst 

System Design 

Hardware 

Construction 

1993 

Vattenfall Nordic 

 Amager Unit 3

(Noell) 

250 MW 94% DNX-564 Catalyst 2000 

Vattenfall Nordic 

 Fyn Unit 7 

(Fisia Babcock)

400 MW 90% DNX-664 Catalyst 2007 

Korea 

STX Energy

 Banwol Units 1-3 

(STX Engine) 

3 x 60 MW 76% DNX-664 Catalyst 2006 

Taiwan

Formosa Plastic Group 

 LP2 

(Envirgy)

80 MW Spare DNX-684 Catalyst 2008 

USA

AES 

 Cayuga Unit 1, NY 

(Foster Wheeler) 

150 MW 90% DNX-758 Catalyst 

Design of ammonia 

injection and flow

rectifiers 

2001 

AEP 

 Amos Unit 2 800 MW Spare DNX-364 Catalyst 2009 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 4/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Allegheny Energy

 Harrison Unit 1, WV 

 Harrison Unit 2, WV 

 Harrison Unit 3, WV 

 Pleasant Unit 1, WV

 Pleasant Unit 2, WV

(Parsons) 

650 MW

650 MW

650 MW

650 MW

650 MW

>90% 

>90% 

>90% 

>90% 

>90% 

DNX-664 

DNX-664 

DNX-664 

DNX-664 

DNX-664 

Catalyst 

Design of ammonia 

injection and flow

rectifiers 

2002 

2003 

2003 

2003 

2003 

Vectren 

 Warrick Unit 4 , IN 

 

300 MW Spare DNX-364 Catalyst 2008 

City of Lakeland

 McIntosh Unit 3, FL 365 MW 86% DNX-684 Catalyst 2008 

Cogentrix 

 Logan, NJ 225 MW Spare DNX-884 Catalyst 2006 

Constellation Power 

 H.A. Wagner Unit 3 350 MW Spare DNX-958 Catalyst 2009 

Duke/Cinergy

 Belews Creek, Unit 1, NC 

 Belews Creek Unit 2, NC 

 Cliffside Unit 5, NC 

 Gibson Unit 1, IN 

 Gibson Unit 4, IN 

 Gibson Unit 5, IN 

 Miami Fort Unit 7, OH 

 Miami Fort Unit 8, OH 

1200 MW

1200 MW

590 MW

650 MW

650 MW

650 MW

530 MW

530 MW

Spare 

Spare 

Spare 

Spare 

Spare 

Spare 

Spare 

Spare 

DNX-164 

DNX-164 

DNX-664 

DNX-164 

DNX-164 

DNX-364 

DNX-264 

DNX-264 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2007 

2005 

2008 

2007 

2007 

2006 

2006 

2007 

Midwest Generation EME, LLC 

 Homer City Unit 1, PA 

 Homer City Unit 2, PA 

 Homer City Unit 3, PA 

685 MW

685 MW

700 MW

Spare 

Spare 

Spare 

DNX-764 

DNX-764 

DNX-764 

Catalyst 

Catalyst 

Catalyst 

2005 

2005 

2005 

Orion Power Midwest 

 Chewick Station 600 MW DNX-164 Catalyst 2009 

Owensboro Municipal 

 Elmer Smith Unit 1, KY 

(Sargent & Lundy) 

150 MW 85 % DNX-374 Catalyst 

Design of ammonia 

injection and flow

rectifiers 

2003 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 5/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

SIPCO 

 Marion Unit 4, IL 

(Sargent & Lundy) 

195 MW 92% DNX-584 Catalyst 

Design of ammonia 

injection and flow

rectifiers 

2003 

NRG/ Texas Genco 

 W.A. Parish Unit 5,TX

 W.A. Parish Unit 6,TX 

 W.A. Parish Unit 7,TX 

 W.A. Parish Unit 8,TX

(Sargent & Lundy) 

690 MW

690 MW

590 MW

590 MW

85% 

85% 

80% 

85% 

DNX-484 

DNX-484 

DNX-684 

DNX-684 

Catalyst 

Design of ammonia 

injection and flow

rectifiers 

2003 

2003 

2004 

2003 

Tucson Electric Power 

 Springerville Unit 4 

(Foster Wheeler) 

400 MW 70% DNX-774 Catalyst 2009 

Longview Power 

 Maidsville, WV 

(FWEC) 

650 MW 83% DNX-664 Catalyst 2011 

Luminant 

(TXU Generation Company) 

 Sandow Unit 4

(Babcock & Wilcox) 

545 MW DNX-774 Catalyst 2010 

XCel Energy

 Comanche Unit 3, CO 

(Alstom) 

750 MW 36% DNX-864 Catalyst 2009 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 6/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Coal-fired boilers 

Low-dust installations 

Denmark 

DONG Energy

 Skærbæk 

SNOX demonstration plant 

4 MW >95% DNX-532 Catalyst 

System design 

Hardware 

Construction 

1987-1992 

Vattenfall Nordic 

 Nordjylland Unit 2

SNOX plant 

300 MW >95% DNX-632 Catalyst 

System design 

Hardware 

Construction 

1991 

Vattenfall Nordic 

 Amager Unit 1

(Alstom) 

150 MW 90% DNX-949 Catalyst 2009 

USA

Duke Energy, Union, KY 

 East Bend Unit 2 650 MW Spare DNX-149 Catalyst 2009 

Ohio Edison Co. 

 SNOX Plant, Niles, OH 35 MW > 95% DNX-932 Catalyst 1991 

PowerSouth Energy Coop., AL

 Lowman Unit 2 

 Lowman Unit 3 

(Black & Veatch) 

258 MW

258 MW

90% 

90% 

DNX-154 

DNX-154 

Catalyst 

Catalyst 

2007 

2008 

Southern Company Services 

 Gaston Unit 5, AL 890 MW 90% DNX-141 Catalyst 

Design of ammonia 

injection and flow

rectifiers 

2006 

WE Energies, WI

 Oak Creek Units 5 & 6 

 Oak Creek Units 7 & 8 

2 x 262 MW

2 x 305 MW

57% 

57% 

DNX-949 

DNX-949 

Catalyst 

Catalyst 

2011 

2011 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 7/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Bio-fuel- fired boilers 

High-dust installations 

Denmark 

DONG Energy

 Avedøre Unit 2 400 MW 80% DNX-564 Catalyst 2001 

Sweden

Vattenfall 

 Uppsala Unit 5 120 MW 75% DNX-857 Catalyst 2005 

USA

Corn Fiber, Ft. Dodge, IA 

 Waste Boiler 

(Peerless) 

68,000 Nm3

/hr 82% DNX-954 Catalyst 2008 

Sierra Power, Terra Bella, CA 

 Wood fired boiler 7 MW 65% DNX-955 Catalyst 2008 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 8/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Bio-fuel-fired boilers 

Low-dust installations 

USA

Corrugated Services, Forney, TX

 Boiler 87,200 Nm3

/hr 75% DNX-930 Catalyst 2008 

SUEZ Energy, Pinetree Power 

 Bethlehem, NH 

 West Ossipee, NH 

16 MW

22 MW

46% 

46% 

DNX-949 

DNX-949 

Catalyst 

Catalyst 

2008 

2008 

Synterprise Global Solutions, TN

 Wood fired boiler 88,700 Nm3

/hr 35% DNX-931 Catalyst 2008 

United Corrstack, Reading PA

 Community Power 81% DNX-939 Catalyst 2008 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 9/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Oil-fired boilers 

Austria 

OMV Refinery

 Schwecat, SNOX plant 830,000 Nm3

/hr 90% DNX-939 Catalyst 2007 

Korea 

KEWESPO 

 Ulsan Unit 4 

 Ulsan Unit 5 

 Ulsan Unit 6 

(Daewoo) 

400 MW

400 MW

400 MW

52% 

52% 

52% 

DNX-340 

DNX-340 

DNX-340 

Catalyst 

Catalyst 

Catalyst 

2003 

2002 

2002 

KOWEPO 

 PyongTeak Unit 1 

 PyongTaek Unit 2 

(Doosan) 

350 MW

350 MW

80% 

80% 

DNX-659 

DNX-659 

Catalyst 

Catalyst 

2007 

2006 

KOSPO 

 NamJeju Unit 3 

 NamJeju Unit 4 

(Doosan) 

100 MW

100 MW

75% 

75% 

DNX-940 

DNX-940 

Catalyst 

Catalyst 

2006 

2006 

New Caledonia 

Goro Nickel 

 3 Units 

(Inco Australia)

84,000 Nm3

/hr 67% DNX-959 Catalyst 2008 

Sweden

Shell Refinery, Gothenburg 

 Unit 1 

(Haldor Topsøe) 

60 MW 94% DNX-950 

Catalyst 

System design 

Hardware 

1998 

Preem Refinery, Gothenburg

 Unit 1 

(Alstom) 

80,000 Nm3

/hr 90% DNX-640 Catalyst 2003 

Middle East 

Undisclosed client 

 Unit 1 & 2 

(Babcock Noell)

2 x 150 MW DNX-949 Catalyst 

System Design 

2008 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 10/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Gas-fired boilers 

Qatar 

Shell PEARL, Ras Lafan 

 Unit 1 & 2 

(Envirgy) 

180,000 Nm3

/hr 45% DNX-630 Catalyst 2008 

Russia 

AO Mosenergo, Moscow

 TP 27 Unit 1 

 TP 27 Unit 2 

(ZAO Topsøe Yaroslav) 

120 MW

120 MW

67% 

67% 

DNX-962 

DNX-962 

Catalyst 

System design 

Hardware 

Construction 

1996 

1999 

Dzerzhinskaya

 Power Station, Dzerzhinsk 

(ZAO Topsøe Yaroslav) 

120 MW 80% DNX-652 Catalyst 

System design 

Hardware 

Construction 

1999 

USA

AES, CA 

 Huntington Beach Units 1 & 2 

(AUS) 

215 MW >90% DNX-930 Catalyst 2001 

Celanese, Pasadena, TX

 Clear Lake Cogen Units 1-4 

 (AUS) 

Steam Gen. 

4 x 250,000 lbs/hr >95% DNX-930 Catalyst 2002 

City of Burbank, Burbank, CA

 Olive Units 1 & 2 

(AUS) 

2 x 50 MW 98% DNX-930 Catalyst 2003 

Dynegy, Chula Vista, CA 

 South Bay Unit 4 

(URS) 

235 MW >90% DNX-940 Catalyst 2001 

Exelon, Fort Worth, TX

 Handley Units 4 & 5 

 (AUS) 

2 x 470 MW 98% DNX930/940 

Catalyst 2003 

Formosa Plastics, Comfort, TX

 Units 1 & 2 2 x 128,000 Nm3

/hr 90% DNX-929 Catalyst 2009 

Gillette, Boston, MA 

 Unit 3 

(Peerless) 

68,000 Nm3

/hr 85% DNX-940 Catalyst 2004 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 11/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Inland Paper and Packaging 

 Steam Plant, Ontario, CA 73,400 Nm3

/hr 90% DNX-930 Catalyst 1995 

LADWP, Playa Del Rey, CA 

 Scattergood Units 1 & 2 

(AUS) 

2 x 180 MW >90% DNX-930 Catalyst 2001 

Lyondell Equistar, Channelview,

TX

 Channelview South 

 Units 1-3 

(KBR) 

3 x 

282,000 Nm3

/hr 

96% DNX-931 Catalyst 2004 

Merck Rahney, Rahway, NJ 

 Unit 1 LP 

 Unit 2 LP 

 Unit 1 HP 

(Peerless) 

Steam Gen. 

230,000 lbs/hr

230,000 lbs/hr

230,000 lbs/hr

>90% 

>90% 

>90% 

DNX-930 

DNX-930 

DNX-930 

Catalyst 

Catalyst 

Catalyst 

2003 

2003 

2003 

Northrop Grumman, CA 

 Steam Boiler 135,500 Nm3

/hr 79% DNX-939 Catalyst 2009 

Pacific Coast Producers, CA 

 Unit 1-2 

 Unit 3 

2 x 36,500 Nm3

/hr 

47,000 Nm3

/hr 

93% 

93% 

DNX-929 

DNX-920 

Catalyst 

Catalyst 

2008-09 

2008 

Reliant Energy

 Etiwanda Units 3 & 4, CA 

(AUS) 

2 x 330 MW >90% DNX-930 Catalyst 2001 

Saputo Cheese, Fresno, CA 

 Unit 1 32,000 Nm3/hr 83& DNX-929 Catalyst 2008 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 12/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Pet-coke-fired boilers 

Italy

Enichem 

 SNOX Demonstration Plant 95% DNX-950 Catalyst 

System design 

1991 

Agip Petroli 

 Gela 300 MW 95% DNX-950 Catalyst 

System design 

1999 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 13/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Stationary diesel engines 

Denmark 

Grindsted El- og Varmeværk 

 Tårnvej Unit 1 

 Tårnvej Unit 2

(Wärtsila) 

 Grønningen Unit 1 

6.6 MW

6.6 MW

6.1 MW

83% 

83% 

30% 

DNX-653 

DNX-653 

DNX-953 

Catalyst 

System Design 

Hardware 

Turnkey

1994 

1994 

2001 

Slangerup Kraftvarmeværk 

 Unit 1 1.6 MW

90%

DNX-653 Catalyst 1991 

Hundested Kraftvarmeværk 

 Unit 1 3.5 MW 80% DNX-653 Catalyst 

System Design 

Hardware 

1991 

Finland 

Waasa Pilot Power Plant 

 Unit 1 

 Unit 2 

(Wärtsilä) 

11.7 MW

23.3 MW

92% 

94% 

DNX-951 

DNX-951 

Catalyst 

System Design 

Hardware 

1998 

1998 

Korea 

Korea Midland

 Jeju Island Unit 2 

(Doosan Engine Co.) 

40 MW > 87% DNX-351 Catalyst 

System Design 

Hardware 

2008 

Korea Midland

 Jeju Island Unit 1 

(HSD Engine Co.) 

40 MW > 87% DNX-351 Catalyst 

System Design 

Hardware 

2005 

Middle East 

Undisclosed Client 

 Units 1-4 

(Wärtsilä) 

4 x 6.5 MW 60% DNX-951 Catalyst 

System Design 

Hardware 

1998 

Undisclosed Client 

 Units 1-2 

(Hyundai Heavy Industries) 

2 x 9 MW 67% DNX-951 Catalyst 

System Design 

Hardware 

2003 

Sweden

Pharmacia AB

 Unit 1 3.8 MW 95% DNX-650 Catalyst 

System Design 

Hardware 

1993 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 14/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Taiwan

Taiwan Cement Corp., 20 MW 

 Units 1-3 

(Wärtsilä) 

3 x 6.5 MW 84% DNX-951 Catalyst 

System Design 

Hardware 

1995 

Tung-Chi Paper, Taichung 

 Unit 1 

(Wärtsilä) 

6.5 MW 84% DNX-653 Catalyst 

System Design 

Hardware 

1995 

Chung Hwa Chemical Ind. Work, 

Taoyuan, 26 MW

 Units 1-4 

(Wärtsilä) 

4 x 6.5 MW 84% DNX-951 Catalyst 

System Design 

Hardware 

1996-97 

TTET, Taiyuan, 13 MW plant 

 Units 1-2 

(Wärtsilä) 

2 x 6.5 MW 84% DNX-951 Catalyst 

System Design 

Hardware 

1998 

Asia Polymer Corp. Kaohsiung 

20 MW plant 

 Units 1-3 

(Wärtsilä) 

3 x 6.5 MW 84% DNX-951 Catalyst 

System Design 

Hardware 

1998 

TYC, 33 MW plant 

 Units 1-3 

 (Wärtsilä) 

3 x11 MW 84% DNX-951 Catalyst 

System Design 

Hardware 

1999 

Turkey

Aksa Enerji, Samsun 126 MW

 Units 1-7 7 x 18 MW 87% DNX-951 Catalyst 

System Design 

Hardware 

2002 

Ankara Enerji, 53 MW plant 

 Units 1-7 7 x 8 MW 86% DNX-951 Catalyst 

System Design 

Hardware 

2002 

Cengiz Enerji, Samsun, 126 MW

 Units 1-7 7 x 18 MW 87% DNX-951 Catalyst 

System Design 

Hardware 

2002 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 15/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

United Kingdom 

Citigen Limited, London, 33 MW

 Units 1-2 2 x 16 MW 94% DNX-653 Catalyst 

System Design 

Hardware 

1993 

USA

BL England, NJ 

 4 Units 

(CCA) 

4 x 2 MW 75% DNX-939 Catalyst 2007 

Citizen Utilities Co, Kauai, 

Hawaii 

 Unit 5 

7.9 MW 60% DNX-653 Catalyst 

System Design 

Hardware 

1991 

Eastern Concrete, NJ 

 Unit 1 0.9 MW Catalyst 2008 

Weldon Quarry, NJ 

 Unit 1 0.3 MW Catalyst 2008 

Holmes Tools & Eng., FL

 Units 1-4 

 Units 5-6 

4 x 2.5 MW

2 x 2.2 MW

90% 

90% 

DNX-329 

DNX-949 

Catalyst 

Catalyst 

2009 

2009 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 16/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Marine diesel engines 

Finland 

Silja Line OY, Helsinki 

 M/S Silja Symphony 

Aux engine 

 M/S Serenade 

Aux engine 

 M/S Festival 

Main engines 1-4 

(Wärtsila) 

3 MW

3 MW

4 x 6 MW

95% 

95% 

91% 

DNX-653 

DNX-653 

DNX-953 

Catalyst 

System Design 

Hardware 

Catalyst 

System Design 

Hardware 

1994 

1994 

2001 

Norway

Navion ASA, Stavanger 

 Main engine 4.3 MW 88% DNX-953 

Catalyst 

System Design 

Hardware 

2001 

Sweden

Stena Line AB, Gothenburg 

M/S Stena Jutlandia 

 Aux. engines 1-4 

 Main engines 1-4 

4 x 1.8 MW

4 x 6.5 MW

90% 

90% 

DNX-951 

DNX-951 

Catalyst 

System Design 

Hardware 

1996 

1996 

USA

USS-POSCO 

Korean cargo ships, main 

engine: 

 M/V Pacific Success 

 M/V Pittsburg 

 M/V Delta Pride 

 M/V New Horizon 

7.9 MW

7.9 MW

7.9 MW

7.9 MW

92% 

92% 

92% 

92% 

DNX-662 

DNX-662 

DNX-662 

DNX-662 

Catalyst 

System Design 

Hardware 

1989 

1989 

1991 

1992 

Seastreak NYC Ferry

 One installation

(CCA) 

70% DNX-640 Catalyst 2005 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 17/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Gas engines 

Denmark 

Gartneriet A. Pedersen, Bellinge 

 Unit 1 

 Unit 2 

3.1 MW

2.7 MW

90% 

90% 

DNX-953 

DNX-953 

Catalyst 

System Design 

Hardware 

1995 

1997 

Gartneriet A. Pedersen, Bellinge 

 Unit 3 

(Catcon) 

14,000 Nm3

/hr 97% DNX-920 Catalyst 2007 

Torup Gartneri, Lundby

 Unit 1 2.7 MW 90% DNX-953 

Catalyst 

System Design 

Hardware 

1997 

Gartneriet Rosborg-Bellinge

 Unit 1 2.8 MW 95% DNX-951 

Catalyst 

System Design 

Hardware 

1998 

Masnedø Gartnerier, Masnedø 

 Units 1-2 

 Units 3-4 

2 x 1.6 MW

2 x 3 MW

88% 

90% 

DNX-953 

DNX-931 

Turnkey 1998 

1999 

Italy

Fertilvita S.r.L., 

Corteolona-Pavia 

Two Units

(ECODECCO)

12,000 Nm3

/hr >90% DNX-920 Catalyst 2006-7 

Spain

Carboneco Aliaga 

 Unit 1 

90% DNX-931 Catalyst 2007 

Courant Energies 

 Neoelectra, Les, Units 1-5 

 Neoelectra, El Grado, Units 

1-4 

 (Union Engineering A/S) 

5 x 3 MW

4 x 3 MW

90% 

90% 

DNX-631 

DNX-631 

Catalyst 

System Design 

Hardware 

2002 

2002 

USA

Chevron Texaco, San Ramon,

CA 

 Units 1-2 

(EnviroKinetics)

DNX-920 Catalyst 2004 

Rentech Midwest 

East Dubuque, IL DNX-620 Catalyst 2008 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 18/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Wawona Frozen Foods 

 Fresno, CA 

 Clovis, CA 

(Technip Coflexip) 

2.1 MW

2.1 MW

90% 

90% 

DNX-930 

DNX-930 

Catalyst 

Catalyst 

2003 

2003 

Pine Prairie Energy Center 

 Easton, LA 

 Easton, LA 

4 x 6 MW

2 x 6 MW

90% 

90% 

DNX-920 

DNX-920 

Catalyst 

Catalyst 

2006 

2009 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 19/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Gas turbines

Austria 

EVN AG 

 Theiss Unit 2 

(Alstom) 

995.000 Nm3

/hr 60% DNX-921 Catalyst 2008 

Canada

IST

 Waterbury Generation 100 MW 90% DNX-629 Catalyst 2009 

Sithe, Brampton, Ontario 

 Goreway Units 1-3 

(Deltak) 

850 MW 86% DNX-920 Catalyst 2007 

Sithe, St. Claire, Ontario 

 Greenfield Units 1-3 

(Deltak) 

800 MW 87% DNX-920 Catalyst 2007 

Chile 

Sociedad Electrica, Santiago 

 Nueva Renca 1.8 mill Nm3

/hr 90% DNX-929 Catalyst 2009 

China 

Huadian 

 Beijing TPP Units 1 & 2 

(CHEC) 

250 MW 50% DNX-920 Catalyst 2007 

Denmark 

Frederikshavn Kraftvarmeværk

Hirtshals Fjernvarme 

17 MW

9 MW

75% 

65% 

DNX-950 

DNX-930 

Turnkey

Turnkey

1998 

1998 

Ringkøbing Krafvarmeværk 

(Catcon) 

6 MW 62% DNX-620 Catalyst 2007 

Skjern Kraftvarmeværk 

(Catcon) 

6 MW 62% DNX-620 Catalyst 2007 

Vrå Varmeværk

 Vrå Unit 1 

(Catcon) 

8 MW 73% DNX-320 Catalyst 2007 

France 

Esso Refinery, Fos-sur-Mer 

 Unit 1 

(Envirgy) 

269.000 Nm3

/hr 80% DNX-920 Catalyst 2008 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 20/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Italy

API Energia, Falconara 

 IGCC Plant Unit 1 150 MW 50% DNX-939 Catalyst 2003 

ISAB, Priolo 

 IGCC plant, Units 1-2 

(Snamprogetti/Foster Wheeler) 

2 x 161 MW 80% DNX-930 Catalyst 1999 

Korea

Sithe Icheon Cogen 

 Unit 1 500,000 Nm3/hr 90% DNX-959 Catalyst 2009 

Mexico

Sempra LNG 

 Energia Costa Azul, 

Ensenada

5 x 10 MW 90% DNX-920 Catalyst 2006 

Norway

Statoil, Kaarstoe

 Unit 1 

(Envirgy) 

2.1 mill Nm3

/hr 90% DNX-920 Catalyst 2007 

Statoil, Mongstad 

 Units 1 & 2 

(Peerless) 

1.2 mill Nm3

/hr 72% DNX-920 Catalyst 2008 

Qatar

Messiaeed 

 Units 1-6 

(Peerless) 

82% DNX-920 Catalyst 2008-09 

Saudi Arabia

National Industrialization Co. 

Saudi Polyolefins Company 

 Unit 1 1.4 mill. Nm3

/hr 82% DNX-930 Catalyst 2004 

Switzerland 

Thermatel, Monthey 

 Unit 1 400,000 Nm3/hr 56% DNX-920 Catalyst 2009 

Sweden

Göteborg Energi, Rya CHPP 

Gothenburg 

 Units 1-3 

(Envirgy) 

250 MW 77% DNX-920 Catalyst 2006 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 21/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Thailand 

PITUT/Thai Shinryo

 Pitut Central Utility, 2 units 

(Petro Chem) 

2 x 150 MW 76% DNX-920 Catalyst 2008 

USA

AES Red Oak, NJ 

 Units 1-3 

(Foster Wheeler) 

3 x 277 MW 88% DNX-930 Catalyst 2001 

Air Products Chemicals, TX

 Port Arthur II 

(Deltak) 

80 MW DNX-920 Catalyst 2005 

Alliant – Madison Gas & Elec., 

WI 

 Units 1-2 

(Deltak) 

2 x 75 MW 90% DNX-930 Catalyst 2005 

Billerica Energy Center, MA 

Units 1-4 

(Turner Enviro)

4 x 60 MW 90% DNX-620 Catalyst 2008 

B. Braun Medical, Irvine, CA 

 Unit 1 + 2 2 x 3 MW 90% DNX-930 Catalyst 2000/ 2007 

Braintree Energy Center 

 Thomas A. Watson Units 1 

& 2 

116 MW 90% DNX-920 Catalyst 2008 

BP/Duke, South Houston Green 

Power, Texas City, TX

 Units 1-3 

(Deltak) 

3 x 170 MW 85% DNX-930 Catalyst 2003 

BP/EME Watson Cogeneration 

 Unit 1 

 Unit 2 

 Unit 3 

 Unit 4 

80 MW

80 MW

80 MW

80 MW

94% 

94% 

94% 

94% 

DNX-950 

DNX-950 

DNX-950 

DNX-950 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2002 

2003 

2004 

2005 

Bryan Texas Utilities, TX

 Dansby Unit 2 393.000 Nm3

/hr 90% DNX-620 Catalyst 2008 

California Dairies, Tipton, CA 

 Unit 1 

(Deltak) 

27 tons steam/hr 90% DNX-920 Catalyst 2004 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 22/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Constellation Energy, UT

 West Valley Units 1-4 4 x 334300 Nm3

/hr 82% DNX-629 Catalyst 2009 

Corona Cogen, Corona, CA 

 Unit 1 470.000 Nm3

/hr 93% DNX-920 Catalyst 2008 

DG Power LLC

 Calpeak Border, CA 

 Calpeak El Cajon, CA 

 Calpeak Escondido, CA 

 Calpeak Midway, CA 

 Calpeak Mission, CA 

 Calpeak Panoche, CA 

 Calpeak Vaca Dixon, CA 

(Peerless) 

45 MW

45 MW

45 MW

45 MW

45 MW

45 MW

45 MW

95% 

95% 

95% 

95% 

95% 

95% 

95% 

DNX-930 

DNX-930 

DNX-930 

DNX-930 

DNX-930 

DNX-930 

DNX-930 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2001 

2001 

2001 

2001 

2001 

2001 

2001 

City of Burbank, Burbank, CA

 Lake Unit 1 

(Turner Envirologic) 

44 MW 92% DNX-920 Catalyst 2005 

City of Glendale, CA 

 Unit 8A 

 Unit 8B & 8C 

(AUS) 

24 MW

47 MW

95% 

95% 

DNX-930 

DNX-930 

Catalyst 

Catalyst 

2000 

2000 

City of Pasadena, Pasadena, CA 

 GT 1 & 2 2 x 44 MW DNX-630 Catalyst 2005 

Conectiv Mid Merit 

 Units 1-6, Bethlehem, PA 

(Hamon Research Cottrell) 

 Units 1-3, Delta, PA 

(Vogt) 

6 x 225 MW

3 x 225 MW

80% 

80% 

DNX-930 

DNX-920 

Catalyst 

Catalyst 

2003 

2009 

ConEd, West Springfield, MA 

 Units 1-2 

(Peerless) 

2 x 44 MW 92% DNX-630 Catalyst 2002 

Dartmouth Power, MA 

 Unit 1 23 MW 90% DNX-929 Catalyst 2009 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 23/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

DEMEC Power, Smyrna, DE 

 Unit 1 

(Peerless) 

44 MW 82% DNX-930 Catalyst 2001 

Diamond Generation 

 Indigo, 3 Units

(EnviroKinetics)

3 x 50 MW DNX-630 Catalyst 2006 

Duke Power, Rowan, NC 

 Buck & Dan River Units 2 x 1.4 mill Nm3

/hr 83% DNX-929 Catalyst 2011 

EIF, Panoche, CA 

 4 Units 4 x 100 MW Catalyst 2008 

El Paso Merchant Energy

Linden, NJ 

 Unit 1 

(Foster Wheeler) 

181 MW 86% DNX-930 Catalyst 2001 

Hawaii Electric Light Company

 2 Units 

(KOPEC) 

215,000 Nm3/hr 64% DNX-321 Catalyst 2008 

GE Aero Energy, Panoche, CA 

 4 Units 4 x 100 MW 93% DNX-620 Catalyst 2008 

Keyspan, Greenport, NY 

 Greenport Unit 1 54 MW DNX-630 Catalyst 2006 

Kleen Energy, Middletown, CT

 Units 1 & 2 164 MW 86% DNX-929 Catalyst 2010 

Mint Farm Energy Center 

 Longview, WA 170 MW 90% DNX-920 Catalyst 2007 

Modesto Irrigation District, CA

 McClure Station Units 1 & 2 

 Woodland Station 1 

(AUS) 

2 x 80 MW

40 MW

> 90% 

95% 

DNX-920 

DNX-930 

Catalyst 

Catalyst 

2005 

2004 

Motiva, Port Arthur, TX

 4 GT’s 

(Vogt) 

4 x 31 MW 77% DNX-920 Catalyst 2008-9 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 24/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Nevada Power Comp., NV 

 Harry Allen Units 1 &2 2 x 175 MW 85% DNX-929 Catalyst 2011 

NRG, Baytown, TX

 Cedar Bayou Unit 4, 2 GT’s 2 x 215 MW 80% DNX-920 Catalyst 2009 

NuCoastal Energy, TX

 Unit 1 

(Vogt) 

1.3 mill Nm3

/hr 85% DNX-920 Catalyst 2008 

Pacific Energy, Finley, WA

 Benton-PUD Unit 1 

(Peerless) 

45 MW 90% DNX-430 Catalyst 2001 

PacifiCorp, Mona, UT

 Currant Creek 225 MW 89% DNX-929 Catalyst 2008 

PG&E, Avenal, CA 

 Kettleman Compressor 

Station - 2 Units 

76,100 Nm3

/hr 90% DNX-929 Catalyst 2009-10 

Pfizer Global Mfg., Groton, CT

 Unit 1 

(Deltak) 

123,000 Nm3

/hr 93% DNX-920 Catalyst 2008 

Puget Sound Energy, 

Fredonia,WA 

 Patch - Unit 1 & 2 

(Peerlees) 

2 x 45 MW 95% DNX-930 Catalyst 2001 

PPL University Park, IL 

 Units 1 &2 425,000 Nm3

/hr 92% DNX-629 Catalyst 2009 

PPL Wallingford, Wallingford, CT

 Units 1-5 5 x 45 MW 92% DNX-620 Catalyst 2006 

San Gabriel Cogen., Pomona, 

CA 

 San Gabriel Unit 1 

(Peerless) 

36 MW 85% DNX-930 Catalyst 2001 

Santee Cooper, Iva, SC 

 Rainey Station Unit 1 A&B 2 x 200 MW DNX-920 Catalyst 2005 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 25/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Sikorsky Aircraft, Startford, CT

 Unit 1 132,700 Nm3

/hr 90% DNX-929 Catalyst 2009 

Starwood Power, Montclair, CA

 2 Units 2 x 60 MW 93% DNX-929 Catalyst 2009 

Southern Company, Goat Rock, 

AL 

 Franklin Units 1-4 

 Franklin Units 5-6 

(Deltak) 

4 x 225 MW

2 x 225 MW

86% 

86% 

DNX-930 

DNX-920 

Catalyst 

Catalyst 

2003 

2008 

Southern Company 

Autagaville, AL

 Autagaville Units 1-4 

 (Deltak) 

4 x 225 MW 86% DNX-930 Catalyst 2003 

Southern Company, Orlando, FL

 Orlando Units 1 & 2 

 (Deltak) 

2 x 225 MW 86% DNX-930 Catalyst 2003 

Southern Company, Orlando, FL

 Stanton Unit B 

(Vogt) 

86% DNX-920 Catalyst 2009 

Southern Company, Savannah, 

GA 

 Savannah Units 10A & B 

 Savannah Units 11A & B 

 (Deltak) 

2 x 225 MW

2 x 225 MW

86% 

86% 

DNX-930 

DNX-920 

Catalyst 

Catalyst 

2004 

2004 

St. Agnes Medical Center, 

Fresno, CA 

 Units 1 & 2 

 (Wahlco) 

2 x 3.5 MW 80% DNX-330 Catalyst 2002 

Starwood Energy, 

Fresno, CA 

 Units 1 & 2 

 (EnviroKinetics) 

2 x 45 MW 80% DNX-920 Catalyst 2008 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 26/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

TransAlta, Centralia, WA

 Hanford Expansion 

 Units 1-4 

 (Peerless) 

4 x 64 MW 93% DNX-630 Catalyst 2001 

United Cogen 

 San Francisco, CA 10 MW 79% DNX-920 Catalyst 

Replacement 

2007 

University of California, San 

Francisco, CA 

 Units 1 & 2 2 x 5 MW 90% DNX-920 Catalyst 2004 

University of California, Irvine,

CA 

 Irvine Cogen Unit 1 

(Deltak) 

10 MW DNX-930 Catalyst 2005 

Village of Freeport, Freeport, NY 

 Power Plant Unit 2 

(Turner Enviro.) 

44 MW DNX-630 Catalyst 2005 

Wellhead Energy, Fresno, CA 

 Fresno Cogen, Unit 1 

(EnviroKinetics)

48 MW 95% DNX-920 Catalyst 2004 

VENOCO 

 Oil Rig 

(TurnerEnviro.)

3 x 5 MW 90% DNX-940 Catalyst 2006 

Wisconsin Public Service Power, 

Combined Locks, WI 

 Appleton Coated Unit 1 

(Deltak) 

44 MW 88% DNX-930 Catalyst 2001 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 27/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Refineries/petrochemical plants 

Brazil 

Petrobras 

 Two SNOX plants 565,000 Nm3

/hr 94% DNX-939 Catalyst 2010 

Qatar 

Shell Oil Pearl

 SMR Line 1 

 SMR Line 2 

(KTI) 

594,000 Nm3

/hr 

594,000 Nm3

/hr 

68% 

68% 

DNX-930 

DNX-930 

Catalyst 

Catalyst 

2008 

2008 

South Africa

Sasol Synfuel Pty. Ltd. 

 Secunda, Rectisol Off-gas 183,000 Nm3

/hr 62% DNX-330 Catalyst 2007 

USA

Air Liquide 

 El Segundo, SMR Heater, 

CA 

 Freeport, SMR Heater, TX

 Freeport, Aux Boiler, TX

 Bayport Plant, SMR 

Heater,TX 

268,000 Nm3

/hr 

72,500 Nm3

/hr 

90% 

90% 

DNX-930 

DNX-930 

DNX-920 

DNX-930 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2004 

2004 

2006 

2006 

Air Products 

 Baytown, TX, Aux. boiler 

 Convent-Motiva, CA, SMR 

 Martinez, CA, SMR heater 

 Port Arthur, TX, SMR heater 

 Wilmington, CA, SMR 

heater 

 Baton Rouge, LA, SMR 

heater 

 Pasadena, 2 SMR heaters 

340,000 Nm3

/hr 

310,000 Nm3

/hr 

2x284,000 Nm3

/hr 

90% 

90% 

91% 

DNX-930 

DNX-920 

DNX-930 

DNX-930 

DNX-930 

DNX-929 

DNX-929 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2005 

2005 

2004 

2005 

2005 

2009 

2008 

BOC BP Refinery, Toledo, OH 

 SMR Heaters 

(Rentech) 

140,000 Nm3

/hr 93% DNX-920 Catalyst 2005 

BP Carson, CA

 SMR Heater DNX-930 Catalyst 2004 

BP, Whiting, IN 

 5 Boilers 5 x 246,000 Nm3

/hr 95% DNX-929 Catalyst 2009 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 28/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Chevron, El Segundo, CA 

 Reformer Heater 

 Vacuum Heater

 Coker/Naptha Heater 

 Coker 

270,000 Nm3

/hr 

25,000 Nm3

/hr 

25,000 Nm3

/hr 

90% 

90% 

88% 

DNX-930 

DNX-930 

DNX-930 

Catalyst and 

system design 

Catalyst 

Catalyst 

Catalyst 

2000 

2001 

2002 

2007 

Chevron Phillips, Cedar Bayou, 

TX

 BA 101-113 Olefin Furnaces 

13 x 

68,000 Nm3

/hr 93% DNX-930 Catalyst 2003-04 

Citgo, Lemond, Il 

 FCC Unit DNX-858 Catalyst 2006 

ConocoPhillips,

 Bayway, IL, SMR heater 

 Rodeo, CA, Platformer 

Heater 

 Rodeo, CA, Prefractionator 

 Rodeo, CA, Vacuum Tower 

 Rodeo, CA, Reclaim Charge

 Wilmington, CA, Boiler 

 Sweeny, TX, Crude Heater 

71,000 Nm3

/hr 

76,000 Nm3

/hr 

22,000 Nm3

/hr 

13,000 Nm3

/hr 

155,000 Nm3

/hr 

91% 

95% 

90% 

90% 

95% 

95% 

DNX-930 

DNX-630 

DNX-930 

DNX-930 

DNX-930 

DNX-920 

DNX-930 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2005 

2002 

2002 

2003 

2003 

2008 

2004 

ConocoPhillips, Linden, NJ 

 Vacuum Furnace 204,000 Nm3

/hr 90% DNX-939 Catalyst 2010 

Dow Chemical, Freeport,TX 

 Heater 

(Peerless) 

DNX-930 Catalyst 2002 

ExxonMobil, Torrance, CA 

 Boiler 

 Crude Heater 

 FCC Preheater

245,000 Nm3

/hr 

33,000 Nm3

/hr 

95% 

90% 

DNX-940 

DNX-950 

Catalyst 

Catalyst 

Catalyst 

2005 

2003 

2004 

Flying J 

 Big West Boiler, CA 

 Big West Crude Heater, CA 

 Big West SMR Heater, CA 

 Big West Heater, CA 

(AUS) 

76,000 Nm3

/hr 

55,000 Nm3

/hr 

79,000 Nm3

/hr 

29,000 Nm3

/hr 

97% 

90% 

90% 

90% 

DNX-920 

DNX-920 

DNX-920 

DNX-920 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2006 

2006 

2006 

2006 

Hovensa, St. Croix, USVI 

Heater 250,000 Nm3

/hr 61% DNX-930 Catalyst 2008 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 29/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Lurgi NOVA 

 SMR Heater 336,000 Nm3

/hr 94% DNX-920 Catalyst 2010 

Marathon Oil 

 Garyville, LA, 3 Units 

 Robinson, IL, Crude Heater 

 St. Paul, MN, SMR Heater 

196,000 Nm3

/hr 

36,000 Nm3

/hr 

95% 

90% 

DNX-930 

DNX-930 

Catalyst 

Catalyst 

2002 

2003 

Motiva, Port Arthur, TX

 2 x Crude Heater 

 2 x Vacuum Heater 

Catalyst 

Catalyst 

2008 

2008 

Navajo Refining

 Reformer 103,500 Nm3

/hr 90% DNX-929 Catalyst 2009 

Nova Chemicals, Seabrook, TX

 Steam Super Heater 

(KTI) 

44,000 Nm3

/hr 98% DNX-930 Catalyst 2004 

Paramount refining, CA 

 Crude Heater 

(On Quest) 

25,100 Nm3

/hr 90% DNX-939 Catalyst 2007 

Praxair 

 Geismar, LA, SMR Heater 

 Ontario, CA, SMR Heater 

 Port Arthur, TX, SMR Heater 

 Richmond, CA, 2 Units 

 Texas City, SMR heater HU-1

 Texas City, SMR heater HU-2

 Texas City, SMR heater HU-3

 Whiting, IL, SMR Heater 

306,000 Nm/hr 91% 

DNX-930 

DNX-920 

DNX-920 

DNX-920 

DNX-920 

DNX-920 

DNX-920 

DNX-920 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2003 

2006 

2005 

2008 

2004 

2005 

2005 

2005 

Praxair, Whiting, IL 

 2 SMR Heaters 275,000 Nm3

/hr 90% DNX-929 Catalyst 2010 

Sabina Petrochemicals, TX

 C4 Olefins Boiler 

(Peerless) 

83,000 Nm3

/hr 80% DNX-930 Catalyst 2002 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 30/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Shell Oil Products, US 

 Martinez, CA, Delayed 

Coker 

DNX-949 Catalyst 2006 

Shell Oil Products, Deer Park, 

TX

 FCC/CO boiler 385,000 Nm3

/hr 90% DNX-958 

Catalyst 

System design 

2004 

Shell Oil Comp., Deer Park, TX 

 CRU3 heater 272,200 Nm3

/hr 90% DNX-949 Catalyst 2009 

Sinclair Tulsa Refining, OK 

 FCC Unit 

 3 boilers 3 x 95,000 Nm3

/hr 

92% 

97% 

DNX-958 

DNX-929 

Catalyst 

System design 

Catalyst 

2009 

2009 

Sterling Chemicals, Texas City, 

TX

 Styrene Heater

(KTI) 

143,000 Nm3

/hr 94% DNX-330 Catalyst 2004 

Tosco, Rodeo, CA 

 Platformer Heater 

 Prefractionator Heater 

 Vacuum Tower Heater 

 Reclaim Charge Heater 

(KTI) 

71,000 Nm3

/hr 

76,000 Nm3

/hr 

22,000 Nm3

/hr 

13,000 Nm3

/hr 

91% 

95% 

90% 

90% 

DNX-630 

DNX-930 

DNX-930 

DNX-930 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2002 

2002 

2003 

2003 

Tosco, Rodeo, CA 

 Heater 

(OnQuest) 

55,000 Nm3

/hr 90% DNX-930 Catalyst 2006 

Tesoro Golden Eagle Refinery, 

Martinez, CA 

 Heater F-27 

 Heater F-50 

 Heater F-51 

(Peerless) 

97,000 Nm3

/hr 

138,000 Nm3

/hr 

108,000 Nm3

/hr 

89% 

92% 

88% 

DNX-930 

DNX-930 

DNX-630 

Catalyst 

Catalyst 

Catalyst 

2002 

2002 

2002 

Tesoro Los Angeles refinery, CA 

 Wilmington, Heater HTU44 

 Wilmington, Heater CRU-2 

 Wilmington, Heater CRU-3 

20,000 Nm3

/hr 

56,000 Nm3

/hr 

40,000 Nm3

/hr 

92% 

92% 

94% 

DNX-940 

DNX-940 

DNX-930 

Catalyst 

Catalyst 

Catalyst 

2002 

2002 

2002 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 31/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Valero

 Houston Refinery, 3 boilers 

 St. Charles, LA, 2 SMR 

 Texas City Ref., 3 boilers 

 Benicia, CA, 2 FCC 

125,000 Nm3

/hr 

118,000 Nm3

/hr 

347,200 Nm3

/hr 

90% 

90% 

96% 

DNX-920 

DNX-920 

DNX-920 

DNX-164 

Catalyst 

Catalyst 

Catalyst 

Catalyst 

2005 

2006 

2005 

2009 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 32/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Waste incineration 

Belgium 

Bruxelles Energie, Brussels 

 Incineration plant - 3 lines 

(CTU) 

3 x 

200,000 Nm3

/hr 

83% DNX-930 Catalyst 2006 

Czech Republic 

Palivony Kombinat, Vresova 

 Off-gas incinerator (SNOX) 54,000 Nm3

/hr 95% DNX-932 

Catalyst 

System Design 1993 

France 

Siom de la Valee Chevreuse 

 Incineration Plant Line 1 

 Incineration Plant Line 2 

(Area Impianti)

90,000 Nm3

/hr 

54,000 Nm3

/hr 

70% 

77% 

DNX-939 

DNX-930 

Catalyst 

Catalyst 

2008 

2007 

Vinci Environment 

 Incineration Plant - 2 lines 

(Speic) 

2 x 

53,000 Nm3

/hr 

50% +

DeDioxin

DNX-930 Catalyst 2005 

Holland 

AVR Afvalverwerking 

 Incineration plant 70,000 Nm3

/hr 92% DNX-929 Catalyst 2009 

SITA ReEnergy

 Incineration Plant 67,000 Nm3

/hr 80% +

DeDioxin

DNX-949 Catalyst 2007 

Ireland

Eli Lilly, Dunderrow, Kinsale 

 Incinerator 10,000 Nm3

/hr 78% +

DeDioxin

DNX-930 Catalyst 2006 

Italy

Noy Ambiente, Dalmine 

 Incineration Plant 68,000 Nm3

/hr 94% DNX-930 Catalyst 2007 

Provincia Autonoma di Bolzano 

 Incineration Plant 117,000 Nm3

/hr 85% +

DeDioxin

DNX-930 

Catalyst 

System Design 

Hardware 

1996 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 33/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Middle East 

Undisclosed client 

 One unit 

(KEU) 

34,700 Nm3/hr 80% DNX-920 Catalyst 2005 

Romania 

SNP Petrocehm S.A. Arpechim, 

Petesti 

 Gas incineration 

(Vichem, France) 

140,000 Nm3

/hr 99% DNX-940 

Catalyst 

System Design 

Hardware 

2004 

Spain 

Uquifa, Sant Celoni 

 Pharmaceutical Plant 9,000 Nm3

/hr 90% DNX-950 

Catalyst 

System Design 

Hardware 

1998 

Thailand 

Ministry of Industrial Works, 

Bang Poo Industrial Estate 

 Waste Incinerator 45 tons/day 90% DNX-930 Catalyst 2004 

USA

Clean Harbors, Deer Park, TX

 Incinerator Haz. Waste DNX-930 Catalyst 2004 

OxyChem, 

 Deer Park, TX, Incinerator 

 Ingleside, TX, Incinerator 

4 x 

36,000 Nm3

/hr DeDioxin DNX-930 

DNX-930 

Catalyst 

Catalyst 

2002 

2002 

White Mountain Energy, Berlin, 

NH 

 SOG incinerator 

(Wahlco) 

87,000 Nm3

/hr 86% DNX-958 Catalyst 2004 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 34/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Other applications 

Australia 

Australian Gold Reagents 

Kwinana, Western Australia 

 Sodium Cyanide Production 38,000 Nm3

/hr > 90% DNX-930 

Catalyst 

System Design 

Hardware 1998 

China 

Baoshan Iron & Steel Co. 

 WSA plant 

(Topsoe) 

12,700 Nm3

/hr 91% DNX-930 Catalyst 2008 

Chongqing iron & Steel 

 WSA plant 10,000 Nm3

/hr 90% DNX-939 Catalyst 2009 

Handan Iron & Steel 

 WSA plant 

(Topsoe) 

10,500 Nm3

/hr 75% DNX-920 Catalyst 2008 

Panzinhua Iron & Steel Co 

 WSA plant 

(Topsoe) 

10,000 Nm3

/hr 89% DNX-939 Catalyst 2010 

SGIS Songhan Co. Ldt. 

 WSA plant Unit 1 

 WSA plant Unit 2 

(Topsoe) 

10,000 Nm3

/hr 

10,000 Nm3

/hr 

75% 

75% 

DNX-920 

DNX-939 

Catalyst 

Catalyst 

2009 

2009 

Denmark 

Haldor Topsøe A/S, 

Frederikssund

 Catalyst Production Plant 1 

 Catalyst Production Plant 2 

 Catalyst Production Plant 3 

 Catalyst Production Plant 4 

30,000 Nm3

/hr 

36,000 Nm3

/hr 

36,000 Nm3

/hr 

36,000 Nm3

/hr 

90% 

90% 

90% 

90% 

DNX-652 

DNX-930 

DNX-930 

DNX-930 

Catalyst 

System Design 

Hardware 

1999 

1999 

1999 

1999 

France 

ITC SA 

 Unit 1 6,700 Nm3/hr 98% DNX-639 Catalyst 2008 

Germany

Dow Stade 

 Chemical Plant

(KEU/John Zink) 

22,000 Nm3

/hr 95% DNX-949 Catalyst 2008 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 35/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Umicore AG 

 Catox plant 

(KEU) 

34,000 Nm3

/hr 94% DNX-930 Catalyst 1999 

Holland 

Nyrstar Budel Zink, Budel 

 Sulphuric Acid Plant 

(Kvaerner Chemetics) 

1000 MTPD 95% DNX-330 Catalyst 

System Design 

1999 

India

Deepak Fertilizers & 

Petrochemicals Co. Ltd. 

 Nitric Acid Plant 45,000 Nm3

/hr 95% DNX-920 Catalyst 

System Design 

2000 

Gujarat Narmeda Valley

Fertilizers Co. Ltd. 

 WSA Plant 36,000 Nm3

/hr 92% DNX-939 Catalyst 2009 

Sejal Architectural Glass 

 Float glass line 74,000 Nm3

/hr 80% DNX-949 Catalyst 2009 

Japan

Asahi Chemical Industry Co. 

Ltd., Kawasaki 

 Spent Acid Regeneration 50,000 Nm3

/hr 95% DNX-652 Catalyst 

System Design 

Hardware 

1993 

Hachinohe Smelting

 Zink Smelter 70,000 Nm3

/hr 75% DNX-329 Catalyst 2009 

Korea 

Namhae Chemical Corp., 

Yochon 

 DNT/MNT Production 3,000 Nm3

/hr 99% DNX-930 Catalyst 

System Design 

Hardware 

1998 

Posco 

 Sinter metal plant, 2 units 

(Korea Cotrell)

1,350,000 Nm3

/hr 82% +

DeDioxin

DNX-939 Catalyst 2007 

Northern Ireland 

Coca Cola, Lisburn 

 Unit 1 12,400 Nm3

/hr 95% DNX-631 Catalyst 2009 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 36/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

Romania 

Coca Cola, Ploiesti 

 Unit 1 12,400 Nm3

/hr 95% DNX-631 Catalyst 2009 

Russia 

Ministry of Oil refining and 

Petrochemical Industry,

Ishimbay

8,000 Nm3

/hr 70% DNX-652 Catalyst 

System Design 

Hardware 

- 

Taiwan

Formosa Plastics Group 

 Spent Acid Regeneration 17,000 Nm3

/hr 90% DNX-630 Catalyst 1995 

Saudi Arabia

Eastern Petrochemical Co. Ltd. 

 Units 1 & 2 

(KEU/John Zink) 

100,000 Nm3

/hr 43% +

DeDioxin

DNX-659 Catalyst 2007 

Sweden

Wstinghouse Electric Sweden,

Västerås 

 Nuclear Fuel Rod 

Production 

7,500 Nm3

/hr 60% DNX-930 Catalyst 

System Design 

Hardware 

1997 

LKAB, Kiruna 

 Sinter Metal Plant, Unit 4 

(Alstom) 

433,000 Nm3

/hr 90% DNX-749 Catalyst 2007 

Switzerland 

CIMO 

 Unit 1 

(KEU) 

25,500 Nm3

/hr >95% DNX-940 Catalyst 2004 

UK 

Astra Zeneca, Bristol 

 Unit 1 2,900 Nm3

/hr 90% DNX.950 Catalyst 2001 

USA

Beta Steel Corp., Portage, IN 

 Steel Kiln 91,000 Nm3

/hr 95% DNX-930 Catalyst 2003 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S. 
SCR DeNOx technology and catalyst 37/37 

End User

(Contractor) 

Plant size DeNOx Catalyst Scope of supply Start-up

year 

California Steel, Fontana, CA 

 Steel Kiln Unit 1 

 Steel Kiln Unit 2 126,400 Nm3

/hr 

95% 

95% 

DNX-930 

DNX-930 

Catalyst 

Catalyst 

2005 

2009 

Corcoran Tomato Plant, CA 

 Two Boilers 

(AUS) 

DNX-920 Catalyst 2008 

CSI, CA 

 Unit 1 

(Peerless) 

7,000 Nm3

/hr 88% DNX-930 Catalyst 2000 

DistriGas, Boston, MA 

 LNG Plant 

2x 

65,000 Nm3

/hr > 90% DNX-930 Catalyst 2001 

GE Quartz, Hebron, OH 

 Newark Plant, 10 Units in 

Glass Plant 

DNX-930 Catalyst 2005 

Haldor Topsoe Inc., Houston, TX

 Catalyst Production Plant 1 

 Catalyst Production Plant 2 

18,000 Nm3

/hr 

6,000 Nm3

/hr 

90% 

97% 

DNX-652 

DNX-951 

Catalyst 

System Design 

Hardware 

1994 

2001 

Momentive, Hebron, OH 

 10 Units in Quartz Plant DNX-930 Catalyst 2005 

Nucor Steel, Decator, AL 

 Steel Kiln 17,000 Nm3

/hr 84% DNX-320 Catalyst 2007 

PPG Industries Inc., PA 

 Glass plant 107,000 Nm3

/hr 80% DNX-359 Catalyst 2009 

Rohm & Haas, TX

 Unit 1 

(EnviroKinetics)

225,000 Nm3

/hr 95% DNX-930 Catalyst 2004 

Wabash Rental Power 

 Mobil Power boiler 

(Vector Systems) 

 

Catalyst 2008 

Y2K Textiles, Fullerton, CA 

 Gas fired package boiler 2 x 5,000 Nm3

/hr >70% DNX-930 Catalyst 2000 

DeNOx 09.07.2009 

Information contained herein is confidential; it may not be used for any

purpose other than for which it has been issued, and may not be used by

or disclosed to third parties without written approval of Haldor Topsøe A/S.