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Reactivity of Copper Oxide-Based Sorbent in Coal Gas Desulfurization
Department of Chemical Engineering, Chungnam National University, 220, Gung-dong, Yusong-gu, Taejon, Korea
Korean Journal of Chemical Engineering, November 2000, 17(6), 691-695(5), 10.1007/BF02699119
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Abstract
Various CuO-based sorbents were prepared to investigate effects of sorbent ingredients such as SiO2, MnO2, and MoO3 on desulfurization reactivity. Several candidate sorbents chosen from a TGA screening test were further tested in a microreactor system. The amount of SiO2 support to minimize sintering of sorbents was 25 wt%. Sulfur loading was seriously affected by the amount of additives (MnO2, MoO3) in a multi-cycle test. Improvement of sulfur loading by the additives was observed in the multi-cycle test. Effects of support materials on sulfur loading were also investigated by using SiO2, gamma -alumina and zeolite. SiO2 showed the best performance among the support candidates. The sorbent showing the best sulfur loading ability was CMS6 (CuO:MoO3:MnO2: SiO2=61 :11 :3 :25). Its sulfur loading reached up to 13.8 g sulfur/100 g sorbent in a multi-cycle test.
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References
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Westmoreland PW, Harrison DP, Environ. Sci. Technol., 10, 659 (1976)
Yi KB, Choi EM, Song YK, Rhee YW, HWAHAK KONGHAK, 37(5), 795 (1999)
