Infrared and Raman Spectra of a Sulfur-Resistant Methanation Catalyst-Reference-Cited by-同舟云学术

Infrared and Raman Spectra of a Sulfur-Resistant Methanation Catalyst

Published:1980-05 Issue:3 Volume:34 Page:319-323
ISSN:0003-7028
Container-title:Applied Spectroscopy
language:en
Short-container-title:Appl Spectrosc

Author:

Stencel J. M.¹,Bradley E. B.¹,Brown Fred R.¹

Affiliation:

1. Department of Electrical Engineering, University of Kentucky, Lexington, Kentucky 40506 (J.M.S., E.B.B.) and U.S. Department of Energy, Pittsburgh Energy Technology Center, 4800 Forbes Avenue, Pittsburgh, Pennsylvania 15213 (F.R.B.)

Abstract

The infrared and Raman spectra of a sulfur-resistant NiO/Cr2O3/MgSiO3 methanation catalyst are presented and compared to the spectra of the catalyst after being reduced, sulfided, and tested for methanation activity. The molecular structure of the catalyst is shown to be represented by NiO and MgO dispersed in a quasi-tridimensional Cr-O-Si network. Reduction and sulfiding reorders this network and alters the SiOn coordination while reducing Cr6+ to Cr3+ or Cr2+. The data indicate that the SO4−2 which is present after sulfiding and methanation testing may have been formed during the methanation reaction.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

Link

http://journals.sagepub.com/doi/pdf/10.1366/0003702804730330

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