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Article
Reducibility of potassium-promoted iron oxide under hydrogen conditions
Industrial and Engineering Chemistry Research
  • Sipho C. Ndlela, Iowa State University
  • Brent H. Shanks, Iowa State University
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
1-1-2003
DOI
10.1021/ie020841
Abstract
There is economic incentive to operate the ethylbenzene dehydrogenation reaction at low steam/ ethylbenzene ratios. To develop catalysts capable of performing under these conditions, it is necessary to understand the mechanism whereby the concomitant activity loss occurs. A potentially important mechanism is the reduction of the iron oxide. Thermogravimetric analysis in conjunction with X-ray diffraction is used to characterize the reduction properties resulting from potassium addition to iron oxide. The impacts of potassium addition on the temperature required to initiate reduction with hydrogen and on the apparent activation energy of reduction are determined. Reducibility of the potassium/iron oxide system in the presence of other dehydrogenation catalyst promoters is also presented.
Comments

Reprinted (adapted) with permission from Industrial and Engineering Chemistry Research 42 (2003): 2112, doi: 10.1021/ie020841. Copyright 2003 American Chemical Society.

Copyright Owner
American Chemical Society
Language
en
Date Available
2015-03-09
File Format
application/pdf
Citation Information
Sipho C. Ndlela and Brent H. Shanks. "Reducibility of potassium-promoted iron oxide under hydrogen conditions" Industrial and Engineering Chemistry Research Vol. 42 Iss. 10 (2003) p. 2112 - 2121
Available at: http://works.bepress.com/brent_shanks/28/