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Selective catalytic oxidation of H2S over V2O5-supported Fe-pillared montmorillonite clay

Paper ID Volume ID Publish Year Pages File Format Full-Text
55739 47063 2011 6 PDF Available
Title
Selective catalytic oxidation of H2S over V2O5-supported Fe-pillared montmorillonite clay
Abstract

The selective catalytic oxidation of hydrogen sulfide to elemental sulfur in a continuous-flow fixed-bed reactor was studied over V2O5-supported Fe-pillared clay (V/Fe-PILC) catalysts. The synthesized catalysts were characterized by X-ray diffraction (XRD), surface area–pore volume measurements, chemical analysis, X-ray photoelectron spectroscopy (XPS), temperature-programmed desorption of ammonia (NH3-TPD), and thermogravimetric (TG) analysis. The reaction tests were conducted at temperatures ranging from 220 to 300 °C. The V/Fe-PILC catalysts exhibited very good catalytic performance toward H2S oxidation at 220–300 °C without much SO2 emission. The H2S conversion over V/Fe-PILC increased with increasing vanadia content up to 7 wt.%. This superior catalytic performance might be related to the uniform dispersion of vanadia species on the Fe-PILC support.

Graphical abstractThe catalytic performance of vanadia-supported Fe-pillared clay (V/Fe-PILC) catalysts was studied for the selective oxidation of H2S.Figure optionsDownload full-size imageDownload high-quality image (146 K)Download as PowerPoint slideHighlights► Development of efficient vanadia-supported Fe-pillared clay (V/Fe-PILC) catalyst for the selective catalytic oxidation of H2S. ► Characterization of the catalysts using various techniques. ► V/Fe-PILC catalysts showed very good catalytic performance toward H2S oxidation at 220–300 °C. ► High selectivity for elemental sulfur.

Keywords
Selective catalytic oxidation; Hydrogen sulfide; Sulfur; Pillared clay; Vanadia
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 175, Issue 1, 25 October 2011, Pages 183–188
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us