Dynamic Kinetics of Methanol Synthesis over a Commercial Copper-Based Catalyst

Abstract

Abstract: Adsorption, surface reaction and process dynamics on the surface of a commercial copper-
based cata lyst for methanol synthesis from CO/CO2/H2 were systematically studied by means
of temperature programmed desorption (TPD), tsmperature programmed surface reaction (TPSR),
in-situ Fourier transform-inferred spec troscopy(FTIR) and stimulua-response techniques. As
a part of results, an elementary step sequence was suggested and a group of ordinary
differential equations (ODEs) for describing transient conversations relevant to all
species on the catalyst surface and in the gas phase in a micro-fixed-bed reactor was
derived. The values of the parameters referred to dynamic kinetics were estimated by
fitting the solution of the ODEs with the transient response data obtained by the stimulus
-response technique with a FTIR analyzer as an on-line detector.

Key words: methanol synthesis, copper-bnsed catalyst, dynamic kinetics, elementary step sequence, parameter estimation

摘要： Adsorption, surface reaction and process dynamics on the surface of a commercial copper-
based cata lyst for methanol synthesis from CO/CO2/H2 were systematically studied by means
of temperature programmed desorption (TPD), tsmperature programmed surface reaction (TPSR),
in-situ Fourier transform-inferred spec troscopy(FTIR) and stimulua-response techniques. As
a part of results, an elementary step sequence was suggested and a group of ordinary
differential equations (ODEs) for describing transient conversations relevant to all
species on the catalyst surface and in the gas phase in a micro-fixed-bed reactor was
derived. The values of the parameters referred to dynamic kinetics were estimated by
fitting the solution of the ODEs with the transient response data obtained by the stimulus
-response technique with a FTIR analyzer as an on-line detector.

关键词: methanol synthesis;copper-bnsed catalyst;dynamic kinetics;elementary step sequence; parameter estimation

CHEN Xiaochun, RAO Guoying. Dynamic Kinetics of Methanol Synthesis over a Commercial Copper-Based Catalyst[J]. .

陈晓春, 李成岳, 饶国瑛. 铜基催化剂上甲醇合成的动态反应动力学[J]. CIESC Journal.

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