Catalyst Additives to Enhance Mercury Oxidation and Capture

Gale, Thomas K.

Southern Research Institute

关键词: Testing;    01 Coal, Lignite, And Peat;    Bituminous Coal;    Oxidation;    Catalysts;   

DOI  :  10.2172/902528
RP-ID  :  None
RP-ID  :  FC26-04NT41900
RP-ID  :  902528

美国|英语

来源: UNT Digital Library

【 摘 要 】

Preliminary research has shown that SCR catalysts employed for nitrogen-oxide reduction can effectively oxidize mercury. Three different SCR catalysts are currently being studied in this project--honeycomb-type, plate-type, and a hybrid-type catalyst. The catalysts were manufactured and supplied by Cormetech Inc., Hitachi America Ltd., and Haldor-Topsoe Inc., respectively. Parametric testing was performed to investigate the contribution of flue-gas chemistry on mercury oxidation via SCR catalysts. Future work to characterize flue gas simulations typically derived from low and high sulfur bituminous coal are being performed in a stepwise manner, to avoid the constant interruptions in testing that occur when leaks in the system are generated during temperature transitions. Specifically, chlorine concentration vs. mercury oxidation correlations will be developed for each catalyst. The contributions of temperature are also being investigated. SO2 oxidation is also being investigated for each test condition.