SNRB catalytic baghouse laboratory pilot testing

✍ Scribed by Kudlac, G. A. ;Farthing, G. A. ;Szymanski, T. ;Corbett, R.

• Publisher: American Institute of Chemical Engineers
• Year: 1992
• Tongue: English
• Weight: 543 KB
• Volume: 11
• Category: Article
• ISSN: 0278-4491
• DOI: 10.1002/ep.670110115

✦ Synopsis

Abstract

The SOx‐NOx‐Rox Box^TM^ (SNRB) is an advanced air pollution process patented by Babcock & Wilcox (B&W) that provides for significantly reduced sulfur oxides (SO~x~), nitrogen oxides (NO~x~), and particulate emissions from coal‐fired boilers. The process uses a high‐temperature catalytic baghouse for integrating SO~x~ reduction through injecting an alkali sorbent (such as hydrated lime or sodium bicarbonate), NO~x~ removal through ammonia injection and selective catalytic reduction (SCR), and particulate collection. The advantages of the process include: compact integration of the emission control technologies into a single component; dry sorbent and by‐product handling; and improved SCR catalyst life due to lowered SO~x~ and particulate levels.

The SNRB concept has been successfully demonstrated in a 1500‐ACFM pilot baghouse at B&W's Alliance (Ohio) Research Center. This paper describes the SNRB technology and presents the SO~x~, NO~x~, and particulate removal performance results over a range of operating conditions for the laboratory pilot test program.