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Optimum ratio of K2O to CeO2 in a wet-chemical method prepared catalysts for ethylbenzene dehydrogenation

Paper ID Volume ID Publish Year Pages File Format Full-Text
49392 46741 2016 4 PDF Available
Title
Optimum ratio of K2O to CeO2 in a wet-chemical method prepared catalysts for ethylbenzene dehydrogenation
Abstract

•A wet-chemical method produced catalysts exhibited relatively high activity for EBDH.•Combined action of Fe3 + and Ce3 + plays a positive role in EBDH.•The catalyst with the K2O/CeO2 ratio of 1.40 has the highest catalytic activity for EBDH.

Fe2O3–K2O–CeO2 catalysts with various ratios of K2O to CeO2 were prepared by the wet-chemical method. Their phase compositions, reducibility, valence states of elements and catalytic activities for ethylbenzene dehydrogenation were studied. The results demonstrated that when the weight ratio of K2O: CeO2 was 1.40, the catalyst had highest ethylbenzene conversion and styrene selectivity, which were attributed to the optimization of active phase content and electron transfer ability, etc. Further, higher CeO2 content not only enhanced styrene selectivity, but also prolonged the life cycle of catalysts.

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Keywords
Fe2O3–K2O–CeO2 catalyst; Ethylbenzene dehydrogenation; Optimum ratio; Wet-chemical method
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Optimum ratio of K2O to CeO2 in a wet-chemical method prepared catalysts for ethylbenzene dehydrogenation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 73, 5 January 2016, Pages 12–15
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
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Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us