Activity of Catalyst for Liquid Phase Methanol Synthesis

Abstract

Abstract: The effects of reduction procedure, reaction temperature and composition of feed gas on the
activity of a CuO-ZnO-Al2O3 catalyst for liquid phase methanol synthesis were studied. An
optimized procedure different from conventional ones was developed to obtain higher
activity and better stability of the catalyst. Both CO and CO2 in the feed gas were found
to be necessary to maintain the activity of catalyst in the synthesis process.Reaction
temperature was limited up to 523 K, otherwise the catalyst will be deactivated rapidly.
Experimental results show that the catalyst deactivation is caused by sintering and
fouling, and the effects of CO and CO2 on the catalyst activity are also investigated. The
experimental results indicate that the formation of water in the methanol synthesis is
negligible when the feed gas contains both CO and CO2. The mechanism for liquid-phase
methanol synthesis was discussed and it differed slightly from that for gas-phase
synthesis.

Key words: liquid phase methanol synthesis, catalyst, activity, deactivation, mechanism

摘要： The effects of reduction procedure, reaction temperature and composition of feed gas on the
activity of a CuO-ZnO-Al2O3 catalyst for liquid phase methanol synthesis were studied. An
optimized procedure different from conventional ones was developed to obtain higher
activity and better stability of the catalyst. Both CO and CO2 in the feed gas were found
to be necessary to maintain the activity of catalyst in the synthesis process.Reaction
temperature was limited up to 523 K, otherwise the catalyst will be deactivated rapidly.
Experimental results show that the catalyst deactivation is caused by sintering and
fouling, and the effects of CO and CO2 on the catalyst activity are also investigated. The
experimental results indicate that the formation of water in the methanol synthesis is
negligible when the feed gas contains both CO and CO2. The mechanism for liquid-phase
methanol synthesis was discussed and it differed slightly from that for gas-phase
synthesis.

关键词: liquid phase methanol synthesis;catalyst;activity;deactivation;mechanism

WANG Yuefa, Janez Levec. Activity of Catalyst for Liquid Phase Methanol Synthesis[J]. .

王跃发, Janez Levec. 液相合成甲醇催化剂活性的研究[J]. CIESC Journal.

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