Chemical Reactions and Kinetics of the Carbon Monoxide Coupling in the Presence of

摘要/Abstract

摘要： The chemical reactions and kinetics of the catalytic coupling reaction of carbon monoxide to diethyl oxalate were studied in the presence of hydrogen over a supported palladium catalyst in the gaseous phase at the typical coupling reaction conditions. The experiments were performed in a continuous flow fixed-bed reactor. The results indicated that hydrogen only reacts with ethyl nitrite to form ethanol, and kinetic studies revealed that the rate-determining step is the surface reaction of adsorbed hydrogen and the ethoxy radical (EtO-). A kinetic model is proposed and a comparison of the observed and calculated conversions showed that the rate expressions are of rather high confidence.

关键词: CO coupling, diethyl oxalate, hydrogen, chemistry, kinetics

Abstract: The chemical reactions and kinetics of the catalytic coupling reaction of carbon monoxide to diethyl oxalate were studied in the presence of hydrogen over a supported palladium catalyst in the gaseous phase at the typical coupling reaction conditions. The experiments were performed in a continuous flow fixed-bed reactor. The results indicated that hydrogen only reacts with ethyl nitrite to form ethanol, and kinetic studies revealed that the rate-determining step is the surface reaction of adsorbed hydrogen and the ethoxy radical (EtO-). A kinetic model is proposed and a comparison of the observed and calculated conversions showed that the rate expressions are of rather high confidence.

Key words: CO coupling, diethyl oxalate, hydrogen, chemistry, kinetics

Fandong Meng;Genhui Xu;Zhenhua Li;Pa Du. Chemical Reactions and Kinetics of the Carbon Monoxide Coupling in the Presence of[J]. 能源化学(英文), 2002, 11 (3): 145-150.

Fandong Meng;Genhui Xu;Zhenhua Li;Pa Du. Chemical Reactions and Kinetics of the Carbon Monoxide Coupling in the Presence of[J]. Journal of Energy Chemistry, 2002, 11 (3): 145-150.

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