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Steam reforming of acetic acid for hydrogen production over bifunctional Ni–Co catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
54858 47029 2013 8 PDF Available
Title
Steam reforming of acetic acid for hydrogen production over bifunctional Ni–Co catalysts
Abstract

Bio-oil derived from biomass can be used to produce hydrogen which will be a key player for global economy. In the present study steam reforming of acetic acid was conducted in a fixed bed reactor with different supported metal catalysts in a temperature range of 500–750 °C. In this study Ni–Co, Ni–Co/CeO2/ZrO2 and lanthanum oxide promoted Ni/La2O3/Al2O3 catalysts were prepared either by wet impregnation or by co-precipitation method and characterized by XRD, SEM–EDX, TG-DTA, BET and TEM analysis. It was found that bimetallic and without support catalyst Ni–Co (0.25:1) had higher activity and H2 yield compared with Ni–Co/CeO2/ZrO2 and 17% Ni/La2O3/Al2O3 catalysts. The effects of reaction temperature, space time (W/FA0), acetic acid feed concentration and time-on-stream were studied in detail over Ni–Co catalyst.

Graphical abstractNi–Co, Ni–Co/CeO2/ZrO2 and lanthanium oxide promoted Ni/La2O3/Al2O3 catalysts were tested for catalytic steam reforming (CSR) process. It was found that Ni–Co (0.25:1) bimetallic and without support catalyst had higher activity and yield compared to Ni–Co/CeO2/ZrO2 and 17% Ni/La2O3/Al2O3 catalysts. The effects of reaction temperature, space time (W/FA0), acetic acid feed concentration and time-on-stream were studied in detail over Ni–Co catalyst.Figure optionsDownload full-size imageDownload high-quality image (96 K)Download as PowerPoint slideHighlights► Ni–Co, Ni–Co/CeO2/ZrO2 and lanthanium oxide promoted Ni/La2O3/Al2O3 catalysts were tested for steam reforming. ► Ni–Co (0.25:1) bimetallic and without support catalyst had higher activity and yield compared to Ni–Co/CeO2/ZrO2 and 17% Ni/La2O3/Al2O3 catalysts. ► Detailed catalyst characterization was done by BET, TPR, TGA, XRD, SEM–EDX and TEM techniques.

Keywords
BET, Brunauer–Emmett–Teller; CSR, catalytic steam reforming; EDX, energy dispersive X-ray; FID, flame ionization detector; GHSV, gas hourly space velocity; IUPAC, The International Union of Pure and Applied Chemistry; JCPDS, The Joint Committee on Powder
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Steam reforming of acetic acid for hydrogen production over bifunctional Ni–Co catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 207, 30 May 2013, Pages 36–43
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