Relation between sulfurization behavior and mercury vapor capture performance of iron oxide in coal derived fuel gas

Shengji Wu, Junichi Kawakami, Naoki Oya, Masaki Ozaki, Md Azhar Uddin, Eiji Sasaoka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Previously we have reported that H2S reacts with iron oxide to form FeSx, which captures elemental Hg vapor (Hg0) as HgS. In this work, we studied the relation between the rate of Hg0 removal and the rate of sulfidation of iron oxide using a laboratory-scale fixed-bed reactor for the Hg0removal and thermo-gravimetric analysis (TGA) for the sulfidation of iron oxides in a temperature range of 60 to 100°C. Supported and unsupported iron oxides pre-Treated (dried and calcined) at various temperatures were utilized. The relationship between sulfidation and Hg 0 removal is not yet clear. The presence of CO in the feed gas suppressed the weight gain of iron oxide, however the Hg0 removal capacity was unaffected by the presence of CO. In the case of Fe 2O3--110 (dried at 110°C), generation of COS was confirmed during the removal of Hg0.

Original languageEnglish
Title of host publication22nd Annual International Pittsburgh Coal Conference 2005, PCC 2005
Pages2699-2706
Number of pages8
Publication statusPublished - Dec 1 2005
Event22nd Annual International Pittsburgh Coal Conference 2005, PCC 2005 - Pittsburgh, PA, United States
Duration: Sep 12 2005Sep 15 2005

Publication series

Name22nd Annual International Pittsburgh Coal Conference 2005, PCC 2005
Volume3

Other

Other22nd Annual International Pittsburgh Coal Conference 2005, PCC 2005
CountryUnited States
CityPittsburgh, PA
Period9/12/059/15/05

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Keywords

  • COS
  • Coal derived fuel gas
  • HS
  • Iron oxide
  • Removal of mercury vapor

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Wu, S., Kawakami, J., Oya, N., Ozaki, M., Azhar Uddin, M., & Sasaoka, E. (2005). Relation between sulfurization behavior and mercury vapor capture performance of iron oxide in coal derived fuel gas. In 22nd Annual International Pittsburgh Coal Conference 2005, PCC 2005 (pp. 2699-2706). (22nd Annual International Pittsburgh Coal Conference 2005, PCC 2005; Vol. 3).