| Abstract: | Various types of activated carbon sorbents were evaluated for their ability to remove H2S from a simulated coal gas stream at a temperature of 550 ??C. The ability of activated carbon to remove H2S at elevated temperature was examined as a function of carbon surface chemistry (oxidation, thermal desorption, and metal addition), and gas composition. A sorbent prepared by steam activation, HNO3 oxidation and impregnated with Zn, and tested in a gas stream containing 0.5% H2S, 50% CO2 and 49.5% N2, had the greatest H2S adsorption capacity. Addition of H2, CO, and H2O to the inlet gas stream reduced H2S breakthrough time and H2S adsorption capacity. A Zn impregnated activated carbon, when tested using a simulated coal gas containing 0.5% H2S, 49.5% N2, 13% H2, 8.5% H2O, 21% CO, and 7.5% CO2, had a breakthrough time of 75 min, which was less than 25 percent of the length of breakthrough for screening experiments performed with a simplified gas mixture of 0.5% H2S, 50% CO2, and 49.5% N2. |
| Genre: | Article |
| ProdID: | 70023225 |
| Citation Author: | Cal, M. P.; Strickler, B. W.; Lizzio, A. A. |
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| Citation End Page: | 1765 |
| Citation Issue: | 13 |
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| Citation Language: | English |
| Citation Larger Work Title: | Carbon |
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| Citation Number Of Pages: | 9 |
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| Citation Publisher: | Elsevier Science Ltd |
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| Citation Search Results Text: | High temperature hydrogen sulfide adsorption on activated carbon - I. Effects of gas composition and metal addition; 2000; Article; Journal; Carbon; Cal, M. P.; Strickler, B. W.; Lizzio, A. A. |
| Citation Start Page: | 1757 |
| Citation Volume: | 38 |
| Citation Year: | 2000 |
| Type: | citation/reference |
| Text: | High temperature hydrogen sulfide adsorption on activated carbon - I. Effects of gas composition and metal addition; 2000; Article; Journal; Carbon; Cal, M. P.; Strickler, B. W.; Lizzio, A. A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1016/S0008-6223(00)00010-5 |
| Date Other: | Sat, 1 Jan 2000 00:00 -0600 |
| Publisher: | Elsevier Science Ltd |
