Activity of Cu-based catalysts prepared using adsorption phase reaction technique in first step of methanol synthesis

doi:10.11949/j.issn.0438-1157.20150805

CIESC Journal ›› 2015, Vol. 66 ›› Issue (8): 3050-3056.DOI: 10.11949/j.issn.0438-1157.20150805

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Activity of Cu-based catalysts prepared using adsorption phase reaction technique in first step of methanol synthesis

WANG Zhiyong¹, DENG Hui², ZHANG Ting¹, JIANG Xin¹

1 College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China;
2 China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Received:2015-06-02 Revised:2015-06-09 Online:2015-08-05 Published:2015-08-05
Supported by:
supported by the National Natural Science Foundation of China (21276223), the National High Technology Research and Development Program of China (2010AA064905) and the Program for Zhejiang Leading Team of Science & Technology Innovation (2009R50020).

吸附相反应技术制备Cu基催化剂在甲醇合成第一步反应中的活性

汪志勇¹, 邓辉², 张挺¹, 蒋新¹

1 浙江大学化学工程与生物工程学院, 浙江杭州 310027;
2 中国工程物理研究院, 四川绵阳 621900

通讯作者: 蒋新
基金资助:
国家自然科学基金项目(21276223);国家高技术研究发展计划项目(2010AA064905);浙江省重点科技创新团队计划项目(2009R50020)。

Abstract

Abstract:

The Cu-based catalysts prepared via adsorption phase reaction technique (APRT) were characterized using XRD, HRTEM and H₂-TPR. The results indicated the copper species of catalysts were well-dispersed on the surface of the supports with the size varied from 5—10 nm. In the catalytic methanol synthesis from syngas in ethanol solvent, the prepared catalysts performed a much higher activity than the commercial catalysts did for the formation of intermediate, ethyl formate. The remarkable difference between APRT catalyst and other Cu-based catalyst (including the commercial catalyst) on two reactions of methanol synthesis manifests that the APRT catalyst has a different structure as well as active sites for the formation and hydrogenolysis of ethyl formate.

Key words: microreactor, Cu-based catalyst, methanol synthesis, syngas, catalysis

摘要：

采用吸附相反应技术(APRT)制备了Cu基催化剂,并用XRD、HRTEM、H₂-TPR等表征手段进行了分析。结果表明催化剂中的Cu良好分散于载体表面,粒径在5～10 nm。在液相乙醇体系合成气制甲醇的反应中,该Cu基催化剂对第一步形成中间产物甲酸乙酯的催化活性远高于工业催化剂。APRT制备的催化剂与其他催化剂(包括工业催化剂)在液相合成气制甲醇的两步反应中表现出的显著差异,不仅说明APRT催化剂具有不同的结构特点,也表明甲酸乙酯的形成和进一步的加氢的活性位是不同的。

关键词: 微反应器, Cu基催化剂, 甲醇合成, 合成气, 催化

CLC Number:

TQ426.8

WANG Zhiyong, DENG Hui, ZHANG Ting, JIANG Xin. Activity of Cu-based catalysts prepared using adsorption phase reaction technique in first step of methanol synthesis[J]. CIESC Journal, 2015, 66(8): 3050-3056.

汪志勇, 邓辉, 张挺, 蒋新. 吸附相反应技术制备Cu基催化剂在甲醇合成第一步反应中的活性[J]. 化工学报, 2015, 66(8): 3050-3056.

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Activity of Cu-based catalysts prepared using adsorption phase reaction technique in first step of methanol synthesis

吸附相反应技术制备Cu基催化剂在甲醇合成第一步反应中的活性

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