Document Type

Article

Publication Version

Published Version

Publication Date

2003

Journal or Book Title

Industrial and Engineering Chemistry Research

Volume

42

Issue

10

First Page

2112

Last Page

2121

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

File Format

application/pdf

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