Kinetics of CO2 Hydrogenation on a K-Promoted Fe Catalyst
作者： Thomas Riedel , Georg Schaub , Ki-Won Jun , Kyu-Wan Lee
DOI: 10.1021/IE000084K
关键词: Reaction rate 、 Activation energy 、 Catalysis 、 Inorganic chemistry 、 Heterogeneous catalysis 、 Microreactor 、 Reaction mechanism 、 Hydrogen 、 Chemistry 、 Stereochemistry 、 Hydrocarbon
摘要: CO2 hydrogenation on a K-promoted Fe catalyst was studied in a fixed-bed microreactor between 300 and 400° C, at 1 MPa, and with modified residence times in the range of 0.042− 21.4 g⊙ s/cm3. For temperatures below 360° C, organic products almost identical with those found in the traditional Fischer− Tropsch reaction with H2/CO were found (paraffins and α-olefins). At 400° C, formation of carbon deposited on the catalyst became a major reaction. Concerning the mechanism of hydrocarbon formation, the effect of residence …
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