SCR CATALYST-COATED FABRIC FILTERS FOR SIMULTANEOUS NOX AND HIGH-TEMPERATURE PARTICULATE CONTROL

The Energy and Environmental Research Center (EERC) participated in a project with Owens-Coming Fiberglas Corporation (OCF) to test high-tem perature fabric filters coated using a sol-gel process with a propriet ary form of a vanadium/titanium (V/Ti) catalyst. The catalyst-coated S -glass fabric filters are targeted for use in a power plant or industr ial hot-side baghouse facility for simultaneous NOx and particulate co ntrol. Issues pertaining to the successful development and marketing o f this technology, such as catalyst and filter durability, NOx and par ticulate control capabilities, ammonia slip levels, and catalyst deact ivation were addressed. As part of this project, bench-scale experimen ts were performed at the EERC to determine the effects on catalyst rea ctivity and fabric integrity of 1) suspected selective catalytic reduc tion (SCR) catalyst poisons typically found in Western coal ash, and 2 ) exposure to a water or acid dewpoint as a result of an operational u pset in a baghouse facility.