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Efficiency of ethanol conversion induced by controlled modification of pore structure and acidic properties of alumina catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
41594 45894 2011 7 PDF Available
Title
Efficiency of ethanol conversion induced by controlled modification of pore structure and acidic properties of alumina catalysts
Abstract

Bimodal porous alumina catalysts with both continuous macropores and mesopores were prepared using a dual soft template method. The addition of decahydronaphthalene as emulsifier agent successfully contributed to the formation of macropores. The effectiveness of macropore insertion was evaluated in the model reaction of ethanol dehydration at 300 °C. Judging from the results obtained by acidity measurements using temperature programmed desorption of ammonia and the performance of these catalysts in the ethanol dehydration, the introduction of macropores in the catalyst structure enhanced the ethanol conversion.

Graphical abstractCatalytic results of ethanol dehydration of alumina samples at 300 °C, showing that the conversion passes through a minimum that is related to a combination of adequate porosity and acidity of the catalyst.Figure optionsDownload full-size imageDownload high-quality image (108 K)Download as PowerPoint slideHighlights► Bimodal porous alumina catalysts with both continuous macropores and mesopores. ► Evaluation of the effectiveness of macropore insertion. ► Macropores in the catalyst structure enhanced ethanol conversion. ► Emulsifier agent played a negative role in the generation of alumina samples acidity.

Keywords
Macroporous materials; Mesoporous materials; Alumina; Emulsion; Ethanol dehydration
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Efficiency of ethanol conversion induced by controlled modification of pore structure and acidic properties of alumina catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 398, Issues 1–2, 15 May 2011, Pages 59–65
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
Online Support
Any Questions? feel free to contact us