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Show SIMULTANEOUS SO/NO/PARTICULATE REMOVAL IN A HIGH-TEMPERATURE BAGHOUSE - CLEAN COAL 2 PROGRAM UPDATE by Paul Chu and Greg Kudlac Babcock & Wilcox - Research and Development Division Alliance, Ohio 4460 1 John Wilkinson Babcock & Wilcox - Environmental Equipment Division Barberton, Ohio 44302 Ron Corbett U.S. Department of Energy - Pittsburgh Energy Technology Center Pittsburgh, Pennsylvania 15236 ABSTRACT The SO,. NO,. RO,. Box™ (SNRB) process, or the Babcock & Wilcox patented hot catalytic scrubbing baghouse, is an advanced air pollution control system for the combined removal of sulfur oxides (SO,.), nitrogen oxides (NO,.), and particulates emitted from fossil-fued boilers or processes. The key to the SNRB process is a high-temperature baghouse in which simultaneous SO,., NO., and particulate removal occurs. SO ,.removal is accomplished by injecting a dry sorbent such as hydrated lime or sodium bicarbonate into the flue gas. NO.removal is accomplished in part by ammonia injection with a selective NO. reduction catalyst. Finally, the particulates and spent SO. sorbent are collected in a high-temperature baghouse. The SNRB process offers the advantages of high removal levels of SO.' NO., and particulate with only a single major component - a high-temperature baghouse. Additional benefits include the simplicity in handling of dry materials, increased catalyst life, and the potential for improving the boiler/turbine cycle efficiency. Babcock & Wilcox (B&W) is currently being funded by the U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) under the DOE Clean Coal 2 program to demonstrate the feasibility of the SNRB process in a 5 MWe field demonstration. This paper describes the SNRB technology, provides an update of the project status, presents some results from recently completed pilot tests, and describes the field demonstration design and testing plans at the R.E. Burger station of Ohio Edison. |