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

Tzu Hsing Ko, Hsin Chu, Lung Kai Chaung

Research output: Contribution to journalArticlepeer-review

102 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)467-474
Number of pages8
JournalChemosphere
Volume58
Issue number4
DOIs
Publication statusPublished - 2005 Jan

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • General Chemistry
  • Pollution
  • Health, Toxicology and Mutagenesis

Fingerprint

Dive into the research topics of 'The sorption of hydrogen sulfide from hot syngas by metal oxides over supports'. Together they form a unique fingerprint.

Cite this