Tuesday, June 24, 2014

Hydrogen production from simple alkanes and oxygenated hydrocarbons over ceria–zirconia supported catalysts: Review

CATEGORY: HYDROGEN
Renewable and Sustainable Energy Reviews, Volume 32, April 2014, Pages 777–796
Hydrogen production from simple alkanes and oxygenated hydrocarbons over ceria–zirconia supported catalysts: Review
Gaurav Nahar, Valerie Dupont
Energy Research Institute, The University of Leeds, Leeds LS2 9JT, UK
Abstract
Reviews the use of ceria–zirconia based catalysts in hydrogen production from simple alkanes and oxygenated hydrocarbons for the processes of steam reforming (SR), autothermal reforming (‘ATR’), catalytic partial oxidation (‘CPO’), and dry reforming (‘DR’).
Researchers explored the effects of operating conditions like molar steam to carbon ratio, oxygen to carbon ratio, and temperature on the performance of hydrogen production from methane, acetic acid, ethanol, and glycerol SR and ATR of these feedstocks over ceria–zirconia supports have been widely investigated. The use of these supports in the CPO and DR processes has been studied mainly for methane as compared to oxygenated hydrocarbons. Ce-rich supports were reported to be effective in hydrogen production from SR and ATR of ethanol and glycerol and in steam methane reforming (SMR) in the ‘low’ temperature range, whereas zirconium-rich supports exhibited higher catalytic activity in the ‘high’ temperature range.
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