The sorption of hydrogen sulfide from hot syngas by metal oxides over supports

Tzu Hsing Ko, Hsin Chu, Lung Kai Chaung

研究成果: Article

86 引文 斯高帕斯(Scopus)

摘要

Six 5 wt.% metal sorbents including Mn, Fe, Cu, Co, Ce and Zn supported on γ-Al 2O 3, prepared by the incipient wetness impregnation method with calcination at 700°C for 2 h, have been investigated for sorption of hydrogen sulfide in the temperature range of 500-700°C. The sorption experiments were conducted in a fixed-bed reactor in terms of breakthrough curves and characterized by X-ray powder diffraction. The results reveal that the copper and manganese sorbents exhibit the best performance because they provide nearly 100% utilization, but the copper sorbent has a lower sulfur sorption capacity compared with the manganese sorbent. The zinc and cerium sorbents are not good candidates attributed to the vaporization of zinc and unexpected product for cerium. Effects of support materials on 5 wt.% manganese were also investigated by using γ-Al 2O 3, SiO 2 and TiO 2 in this study. Five weight percent Mn/γ-Al 2O 3 shows the best performance among support candidates. On the basis of XRPD and BET surface area analysis, TiO 2 appears a huge loss in BET surface area associated with a significant formation of rutile form.

原文English
頁(從 - 到)467-474
頁數8
期刊Chemosphere
58
發行號4
DOIs
出版狀態Published - 2005 一月 1

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

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