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Aqueous phase reforming of xylitol over Pt-Re bimetallic catalyst: Effect of the Re addition

Paper ID Volume ID Publish Year Pages File Format Full-Text
54733 47024 2014 11 PDF Available
Title
Aqueous phase reforming of xylitol over Pt-Re bimetallic catalyst: Effect of the Re addition
Abstract

•Aqueous phase reforming (APR) of xylitol.•Comparison between Pt/Al2O3, Pt/TiO2 and Pt-Re/TiO2.•Influence of Re on stability, activity, product formation and selectivity.•Higher selectivity to alkanes on Pt-Re/TiO2.•Plausible reaction scheme proposed.

The aqueous phase reforming (APR) of xylitol was studied in a continuous fixed bed reactor over three catalysts: Pt/Al2O3, Pt/TiO2 and Pt-Re/TiO2. The data obtained in the case of the monometallic Pt catalysts was compared to the bimetallic Pt-Re sample. The effect of Re addition on the catalyst stability, activity, product formation and selectivity toward hydrogen and alkanes was studied. The bimetallic catalyst demonstrated a higher selectivity to alkanes compared to the monometallic samples. The monometallic catalyst was more selective toward hydrogen formation. A plausible reaction scheme explaining differences in selectivity toward hydrogen and alkanes was proposed and discussed.

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Keywords
Biomass conversion; Aqueous phase reforming of xylitol; Pt-Re/TiO2; Hydrogen formation; Bimetallic catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 223, 15 March 2014, Pages 97–107
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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100% Money Back Guarantee
Full-text PDF Download
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