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Steam reforming of acetic acid – A major component in the volatiles formed during gasification of humin

Paper ID Volume ID Publish Year Pages File Format Full-Text
44857 46375 2015 9 PDF Available
Title
Steam reforming of acetic acid – A major component in the volatiles formed during gasification of humin
Abstract

•Steam reforming of acetic acid, a volatile from humin, with Ni based catalyst.•Recycled catalysts show higher activity, less coke deposit compared with fresh one.•Redox properties of the catalyst are improved under the reforming condition.

Acetic acid and phenols are the major components of the condensable by-products in the low temperature de-volatilisation stage of humin during gasification. Catalytic steam reforming of acetic acid using supported Ni on ceria-zirconia mixed oxide prepared via the hydrothermal route is discussed. The influence of steam reforming temperatures, steam/carbon ratios were studied. The catalyst showed high activity and good stability. Furthermore, activity improvement was achieved with multiple redox cycles as relevant to recycling the catalysts. Characterisation of the fresh and used catalyst by various techniques (e.g., LEIS, Raman spectroscopy, TPO/TPR) revealed the modification of metal-oxygen bond on the support under the steam reforming conditions. It in turn improved the oxygen mobility of the catalyst.

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Keywords
Steam reforming; Acetic acid; Humin; Nickel; Ceria–zirconia
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 163, February 2015, Pages 74–82
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
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