Gischia, Scott 

From: 

Sent: 

To: 

Beth Havlik [bhavlik@barr.com] 

Wednesday, August 02, 2006 2:23 PM 

Gischia, Scott; Laird, Katherine M. 

Cc: 

Subject: 

Wagner, Dennis; Rogers, Steven G.; Erik Boleman; Teresa L. Kinder; George Pruchnofski 

FW: Discussion with Low-NOx Burner Vendor 

We finally heard back from the low-NOx burner vendor. This technology is not currently available, but it could be 

promising for the taconite industry. They have installed burners with water injection at a taconite pellet plant in Europe 

and they get a 50% reduction in NOx emissions. They will develop some ballpark costs if you can provide 

• Number of burners 

• Burner sizes (Million Btu/hr) 

They asked for additional information that we already have from you, see below. See also more details on the information 

they provided. I'm sorry we couldn't include your people in this preliminary call. We only had 15 minutes notice on when 

the call would occur. If you're interested, we can arrange a call at a later time. 

Beth T. Havlik, P.E. 

Barr Engineering 

450 South Wagner Road 

Ann Arbor, Ml 48103 

800/270-5017 ext. 1206 toll free 

734/327-1200 ext. 1206 phone 

734/327-1212 fax 

734/255-0269 mobile 

bhavlik@barr.com 

From: Erik Boleman 

Sent: Wednesday, August 02, 2006 12:00 PM 

To: Jack Kennedy; Beth Havlik; Erik Boleman; Tony Shoberg; Teresa L. Kinder; Andrew Skoglund 

Cc: George Pruchnofski; Mike Hansel; Joel Trinkle 

Subject: Discussion with Low-NOx Burner Vender 

We finally tracked down the low-NOx burner vendor! 

Beth, Jack, and Erik had a phone conversation this morning with Koen Meijer of Danieli-Corus, and two of his co-workers. 

Their office is located in the Netherlands. The following is a description of the company from their website 

(http://www.danieli-corus.com/): 

Danieli Corus supplies tailor-made solutions for the Primary Metals Industry. Using proven technology from 

Corus' state-of-te-art integrated mills in The Netherlands and UK, as well as from our licensors and other worldwide sources, we help our clients achieve maximum performance. Based on specialized know-how and vast 

operational experience, Danieli Corus offers engineering and contracting services as well as consultancy in all 

areas of ironmaking and steelmaking and at all levels of development. From greenfield projects to advanced 

optimization in established operations, Danieli Corus supports its clients all over the world. Danieli Corus is a 

client-focused, solutions-driven company. It offers an integrated approach to all aspects essential to success in an 

increasingly competitive global industry. 

Danieli-Corus recently completed a major NOx study and low-NOx burner retrofit at a straight-grate taconite induration 

furnace. They looked at several technologies, including standard low-NOx burners and flue gas recirculation. But the 

best technology was a water-cooled burner to reduce the peak flame temperature and therefore reduce thermal NOx 

formation. A couple of details: 

• 50% NOx reduction (if we heard correctly, the pre-installation NOx was 225 ppm or 380 mg/MJ) 

• Straight grate furnace 

• Air from preheater = 950*C 

• Furnace temperature = 1300*C 

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• Furnace 02 concentration = 18% 

• Burners were designed and constructed specifically for this application 

• The new burners were designed to fit into the original burner port 

• This is the only facility that they have using that technology 

• Water use is 0.1 to 1.0 liter of water per cubic meter of natural gas 

• Due to the water cooling, the gas consumption increased with the new burners but they didn't know % increase 

• Spent lots of time on the initial NOx technology study 

• Lot of engineering costs to design the correct burner 

• The technology has not been sold outside of their company. No literature is available. 

Our conclusions based on this conversation are: 

• Since there is only one facility using the technology and the technology has not been sold outside of their 

company, this probably is not an "available" technology per BART 

• However, we will pursue additional information from the vender and share it with the BART group and the clients 

• If time allows, we will model a 50% control scenario to see what improvement this technology would get 

PIGS - do you agree with the approach that this is not an "available" technology? 

Please contact me if you have any questions or comments. 

Erik Boleman 

Barr Engineering 

Toll Free: (800) 786-5830 x8209 

Office: (218) 529-8209 

Mobile: (218) 393-9116 

From: Erik Boleman 

Sent: Wednesday, August 02, 2006 11:13 AM 

To: 'Meijer, K' 

Cc: Erik Boleman; Beth Havlik; Jack Kennedy 

Subject: RE: Low-NOx Burners for Taconite Indurating Furnaces 

Mr. Meijer, 

I would like to thank you and your colleagues for your time and information. This technology seems quite promising and 

we look forward to learning more about it. 

As we discussed, we will get you some specific design information either today or tomorrow morning. We will get the 

following information: 

• Number of burners 

• Burner sizes (Million Btu/hr) 

• Fuel type 

• Air temperature 

• Furnace temperature 

• Existing NOx emissions 

Please let me know if you need any other information. 

Thanks again, 

Erik Boleman 

Barr Engineering 

Toll Free: (800) 786-5830 x8209 

Office: (218) 529-8209 

Mobile: (218) 393-9116 

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