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Reactivity of copper oxide-based sorbent in coal gas desulfurization

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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, g-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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Correspondence to Young-Woo Rhee.

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Song, YK., Lee, KB., Lee, HS. et al. Reactivity of copper oxide-based sorbent in coal gas desulfurization. Korean J. Chem. Eng. 17, 691–695 (2000). https://doi.org/10.1007/BF02699119

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  • DOI: https://doi.org/10.1007/BF02699119

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