| Abstract: | Activated chars were produced from Illinois coal and tested in several flue gas cleanup applications. High-activity chars that showed excellent potential for both SO2 and NOx removal were prepared from an Illinois No. 2 bituminous coal. The SO2 (120 ??C) and NOx (25 ??C) removal performance of one char compared favorably with that of a commercial activated carbon (Calgon Centaur). The NOx removal performance of the same char at 120 ??C exceeded that of the Centaur carbon by more than 1 order of magnitude. Novel char preparation methods were developed including oxidation/thermal desorption and hydrogen treatments, which increased and preserved, respectively, the active sites for SO2 and NOx adsorption. The results of combined SO2/NOx removal tests, however, suggest that SO2 and NOx compete for similar adsorption sites and SO2 seems to be more strongly adsorbed than NO. A low-activity, low-cost char was also developed for cleanup of incinerator flue gas. A three-step method involving coal preoxidation, pyrolysis, and CO2 activation was used to produce the char from Illinois coal. Five hundred pounds of the char was tested on a slipstream of flue gas from a commercial incinerator in Germany. The char was effective in removing >97% of the dioxins and furans present in the flue gas; mercury levels were below detectable limits. |
| Genre: | Article |
| ProdID: | 70019991 |
| Citation Author: | Lizzio, A. A.; DeBarr, J. A.; Kruse, C. W. |
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| Citation End Page: | 259 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Energy and Fuels |
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| Citation Number Of Pages: | 10 |
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| Citation Search Results Text: | Production of activated char from Illinois coal for flue gas cleanup; 1997; Article; Journal; Energy and Fuels; Lizzio, A. A.; DeBarr, J. A.; Kruse, C. W. |
| Citation Start Page: | 250 |
| Citation Volume: | 11 |
| Citation Year: | 1997 |
| Type: | citation/reference |
| Text: | Production of activated char from Illinois coal for flue gas cleanup; 1997; Article; Journal; Energy and Fuels; Lizzio, A. A.; DeBarr, J. A.; Kruse, C. W. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1997 00:00 -0600 |
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