HC1 Control Using Hydrated Lime Dry Sorbent Injection

摘要

Babcock & Wilcox Power Generation Group, Inc. (B&W PGG) recently conducted two pilot plant test programs to investigate the use of various hydrated limes for HC1 (hydrochloric acid) control. The first program examined the effectiveness of hydrated lime based on B&W PGG's portable pilot plant testing on a flue gas slipstream extracted from a commercial biomass and biomass/TDF (tire-derived fuel) combustion process. The second program examined the effectiveness of hydrated lime variants of HCl removal from testing conducted on a simulated flue gas from the Small Boiler Simulator-II (SBS-II) at B&W PGG's Research Center (BWRC) in Barberton, Ohio. Testing included a range of HC1 concentrations along with varying amounts of sulfur dioxide (SO_2). Total removal rates were measured for both in-flight and fabric filter capture of the respective pollutants. The effectiveness of multiple types of hydrated limes was compared to project usage rates required to meet new acid gas emission regulations.