I-I

January 6, 2010

Mr. Wayne Jones

Haldor Topsoe, Inc.

17629 El Camino Real

Suite 300

Houston, Texas 77058

Minnkota Power Cooperative Milton R. Young Station Units 1 & 2

Investigation of Hypothetical Application ofTESCR and LDSCR

BMcD Project 31777

Dear Mr. Jones:

Burns & McDonnell has prepared supplemental reports for the NOx BACT analyses for

Milton R. Young Station (MRYS) Units 1 and 2, and these reports have been submitted

by Minnkota Power Cooperative to the North Dakota Department of Health. In the text

ofthese reports, we stated that:

During preparation ofthe cost estimate, Burns & McDonnell consulted with two

SCR catalyst vendors experienced with biomass-fired boiler SCRs and European

coal-fired boilers with low-dust and tail end SCR systems. However, neither of

these vendors was willing to guarantee a catalyst replacement schedule for

cyclone boilers firing North Dakota lignite without results following successful

extensive pilot-scale slipstream testing that confirm the deactivation and fouling

rates. According to these catalyst suppliers, there is no SCR operating

experience in the world found to be directly comparable to the hypothetically

applied tail end and low-dust SCR cases on North Dakota lignite-fired cyclone

boilers being evaluated. Thus they were unable to offer a guaranteed catalyst

replacement schedule based on their experience.

Please review this statement and respond in writing to confirm that we have correctly

stated your company's position on catalyst life guarantees for the application of SCR

systems to MRYS Units 1 & 2 without successful completion of pilot testing.

Sincerely,

~t~~ Project Engineer

9400 Warn Parkway

Kansas City, Missouri 64114-3319

Tel: 816-333-9400

Fax: 816-333-3690

http.11\vww.bumsmcd.com
I~I January 6,2010

Mr. Noel Rosha

CERAM Environmental, Inc.

7304 W. BOth St.

Suite 140

Overland Park, Kansas 66213

Minnkota Power Cooperative Milton R. Young Station Units 1 & 2

Investigation of Hypothetical Application ofTESCR and LDSCR

BMcD Project 31777

Dear Mr. Rosha:

Burns & McDonnell has prepared supplemental reports for the NOx BACT analyses for

Milton R. Young Station (MRYS) Units 1 and 2, and these reports have been submitted

by Minnkota Power Cooperative to the North Dakota Department of Health. In the text

ofthese reports, we stated that:

During preparation ofthe 'cost estimate, Burns & McDonnell consulted with two

SCR catalyst vendors experienced with biomass-fired boiler SCRs and European

coal-fired boilers with low-dust and tail end SCR systems. However, neither of

these vendors was willing to guarantee a catalyst replacement schedule for

cyclone boilers firing North Dakota lignite without results following successful

extensive pilot-scale slipstream testing that confirm the deactivation and fouling

rates. According to these catalyst suppliers, there is no SCR operating

experience in the world found to be directly comparable to the hypothetically

applied tail end and low-dust SCR cases on North Dakota lignite-fired cyclone

boilers being evaluated. Thus they were unable to offer a guaranteed catalyst

replacement schedule based on their experience.

Please review this statement and respond in writing to confirm that we have correctly

stated your company's position on catalyst life guarantees for the application of SCR

systems to MRYS Units 1 & 2 without successful completion of pilot testing.

Sincerely,

?f~~l~ Project Engineer

9400 Ward Parkway

Kansas City, Missouri 64114-3319

Tel: 816-333-9400

Fax: 816-333-3690

http://www.bumsmcd.com
HALDOR TOPSCE I]j

Haldor Topsoe, Inc.

17629 EI Camino Real

Suite 300

Houston, Texas 77058

www.topsoe.com

Tel: (281) 228-5000

Fax: (281) 228-5019

Mr. Robert O. Blakley, P.E.

Burl")s & McDonnell

9400 Ward Parkway

Kansas City, Missouri 64114

Minnkota Power Cooperative, Milton R. Young Units 1&2

Investigation of Hypothetical Application of TESCR and LOSCR

BMcO project 31777

Mr. Blakley,

January 13, 2010

This letter is to confirm that it is my understanding, based on the information currently at

hand, that Haldor Topsoe, Inc would consider providing a SCR catalyst life guarantee for

either Milton R. Young Unit 1 or Unit 2 for either a tail end (TESCR)or low dust (LOSCR)

configuration only following the successful completion of a pilot-scale slipstream test of

our SCR catalyst on one of the two MRY units. The issuance of a SCR catalyst life

guarantee, if any, would be for only the configuration tested during the pilot-scale testing.

If you have any question please feel free to contact me at 281-228-5136

Wayne S. Jones

Sales Manager, Power Generation

SCRlOeNOx Catalyst & Technology

RESEARCH I TECHNOLOGY I CATALYSTS
Bachman, Tom A.

From:

, Sent:

To:

Cc:

Subject:

Attachments:

Terry,

John Graves [jgraves@minnkota.com]

Thursday, January 14, 2010 11:16 AM

O'Clair, Terry L.

Bachman, Tom A.; David B Sogard

Catalyst Vendor Guarante~s

CERAM Jan 06_2010 (signed).pdf

Below is an email from CERAM confirming their position on catalyst guarantees for LDSCRs and TESCRs at

Milton R Young Station.

John T. Graves, P.E.

Environmental Manager

Minnkota Power Cooperative, Inc.

P.O. Box 13200

Grand Forks, N.D. 58208-3200

Tel: (701) 795-4221

Fax: (701) 795-4214

----- Forwarded by John Graves/Legal/Minnkota on 01/14/2010 11:11 AM ----- .

From: "Blakley, Robert" <rblakley@bumsmcd.com>

To: John Graves <jgraves@minnkota.com>

Cc: "Weilert, Carl" <cweiler@bumsmcd.com>

Date: 01/13/2010 04:08 PM

Subject: FW: Investigation ofHypothetical Application ofTESCR and LDSCR, Minnkota Power

Cooperative Milton R.

Young Station Units 1 & 2

From: Noel Rosha [mailto:Noe1.Rosha@ceram-usa.com]

. Sent: Wednesday, January 13,20103:02 PM

To: Blakley, Robert

Cc: Weilert, Carl

Subject: RE: Investigation ofHypothetical Application ofTESCR and LDSCR, Minnkota Power Cooperative

Milton R. Young Station Units 1 & 2

1
Robert.

CERAM confinns that the attached letter accurately reflects our position regarding catalyst life guarantees for

the Milton R. Young Station tail end and low-dust SCR applications.

Best regards,

Noel Rosha, P.E.

Senior Applications Engineer

CERAM Environmental, Inc.

Phone: 913-239-9896

Mobile: 913-638-9672

From: Blakley, Robert [mailto:rblakley@burnsmcd.com]

Sent: Wednesday, January 06,20102:48 PM

To: Noel Rosha .

Cc: Weilert, Carl

Subject: RE: Investigation ofHypothetical Application ofTESCR and LDSCR, Minnkota Power Cooperative

Milton R. Young Station Units 1& 2

Noel:

Confinning our phone conversation ofJanuary 6,2010.

We are asking for review of our attached letter with written confinnation regarding stating CERAM-USA's

catalyst life guarantee being contingent upon successful completion of pilot-scale slipstream testing that

confinn catalyst deactivation and fouling rates ofthe studied hypothetical applications oftail end and low-dust

SCRs for Units 1 and 2 at Milton R.

Young Station for Minnkota Power Cooperative.

Robert D. Blakley, P.E.

Associate Project Engineer

(Currently registered and licensed in North Dakota) Burns & McDonnell Energy Group 9400 Ward Parkway

Kansas City, MO 64114

Direct: 816-822-3842

.Main: 816-333-9400

Fax: 816-333-3690

rblakley@burnsmcd.com

www.burnsmcd.com

(See attached file: CERAM Jan 06_2010 (signed).pdf)

2