Optimizing Techology to Reduce Mercury and Acid Gas Emissions from Electric Power Plants

Quick, Jeffrey C. ; Tabet, David E. ; Wakefield, Sharon ; Bon, Roger L.

Utah Department Of Natural Resources

关键词: Exploration;    Coal Mines;    01 Coal, Lignite, And Peat;    Mercury;    Coal;   

DOI  :  10.2172/909152
RP-ID  :  None
RP-ID  :  FG26-03NT41901
RP-ID  :  909152

美国|英语

来源: UNT Digital Library

【 摘 要 】

More than 56,000 coal quality data records from five public data sets have been selected for use in this project. These data will be used to create maps showing where coals with low mercury and acid-gas emissions might be found for power plants classified by air-pollution controls. Average coal quality values, calculated for 51,156 commercial coals by U.S. county-of-origin, are listed in the appendix. Coal moisture values are calculated for commercially shipped coal from 163 U.S. counties, where the raw assay data (including mercury and chlorine values) are reported on a dry basis. The calculated moisture values are verified by comparison with observed moisture values in commercial coal. Moisture in commercial U.S. coal shows provincial variation. For example, high volatile C bituminous rank coal from the Interior province has 3% to 4% more moisture than equivalent Rocky Mountain province coal. Mott-Spooner difference values are calculated for 4,957 data records for coals collected from coal mines and exploration drill holes. About 90% of the records have Mott-Spooner difference values within {+-}250 Btu/lb.