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The thermodynamics of the hydrogenation of oxides of carbon
Author(s) -
Anderson Robert B.,
Lee ChungBoon,
Machiels Joseph C.
Publication year - 1976
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450540619
Subject(s) - methane , chemistry , exothermic reaction , yield (engineering) , carbon fibers , raney nickel , catalysis , thermodynamics , molecule , inorganic chemistry , organic chemistry , materials science , physics , composite number , composite material
The thermodynamics of the hydrogenation of CO and CO 2 is summarized. Equilibrium compositions for a number of reactions proceeding simultaneously to yield a number of hydrocarbons and oxygenated organic molecules are reported. If methane is included in these calculations, methane is the predominant product; therefore, for the production of other molecules selective catalysts are required. For producing methane the hydrogenation of CO 2 rather than CO may be advantageous, because the reaction is less exothermic. Thermodynamic calculations and results of tests on Raney nickel in a small tubular reactor show that high yields of methane can be obtained in the hydrogenation of both CO and CO 2 at temperatures as high as 450°C.