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Comparative study of CO and CO2 hydrogenation over supported Rh–Fe catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
51518 46845 2010 6 PDF Available
Title
Comparative study of CO and CO2 hydrogenation over supported Rh–Fe catalysts
Abstract

The hydrogenation of CO, CO + CO2, and CO2 over titania-supported Rh, Rh–Fe, and Fe catalysts was carried out in a fixed-bed micro-reactor system nominally operating at 543 K, 20 atm, 20 cm3 min− 1 gas flow (corresponding to a weight hourly space velocity (WHSV) of 8000 cm3 gcat− 1 h− 1), with a H2:(CO + CO2) ratio of 1:1. A comparative study of CO and CO2 hydrogenation shows that while Rh and Rh–Fe/TiO2 catalysts exhibited appreciable selectivity to ethanol during CO hydrogenation, they functioned primarily as methanation catalysts during CO2 hydrogenation. The Fe/TiO2 sample was primarily a reverse water gas shift catalyst. Higher reaction temperatures favored methane formation over alcohol synthesis and reverse water gas shift. The effect of pressure was not significant over the range of 10 to 20 atm.

Keywords
CO hydrogenation; CO2 hydrogenation; Rh/TiO2; Rh–Fe/TiO2; Methane; Ethanol
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Comparative study of CO and CO2 hydrogenation over supported Rh–Fe catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 10, 11 May 2010, Pages 901–906
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
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