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Rapid Production of High‐Purity Hydrogen Fuel through Microwave‐Promoted Deep Catalytic Dehydrogenation of Liquid Alkanes with Abundant Metals

Abstract

Hydrogen as an energy carrier promises a sustainable energy revolution. However, one of the greatest challenges for any future hydrogen economy is the necessity for large scale hydrogen production not involving concurrent CO2 production. The high intrinsic hydrogen content of liquid‐range alkane hydrocarbons (including diesel) offers a potential route to CO2‐free hydrogen production through their catalytic deep dehydrogenation. We report here a means of rapidly liberating high‐purity hydrogen by microwave‐promoted catalytic dehydrogenation of liquid alkanes using Fe and Ni particles supported on silicon carbide. A H2 production selectivity from all evolved gases of some 98 %, is achieved with less than a fraction of a percent of adventitious CO and CO2. The major co‐product is solid, elemental carbon.

Stop CO2! Die mikrowellenunterstützte katalytische tiefe Dehydrierung von flüssigen Alkenen mit Eisen‐ und Nickel‐Katalysatoren liefert CO2‐freien Wasserstoff. Die Ergebnisse zeigen einen Weg für die Dekarbonisierung von fossilen Brennstoffen auf.

Authors:   Xiangyu Jie, Sergio Gonzalez‐Cortes, Tiancun Xiao, Jiale Wang, Benzhen Yao, Daniel R. Slocombe, Hamid A. Al‐Megren, Jonathan R. Dilworth, John M. Thomas, Peter P. Edwards
Journal:   Angewandte Chemie
Year:   2017
Pages:   n/a
DOI:   10.1002/ange.201703489
Publication date:   23-May-2017
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