Catalytic performance of CuZnAl slurry catalyst prepared by complete liquid phase technology for direct synthesis DME from syngas

GAO Zhihua; JIA Qin; HUANG Wei; YIN Lihua; XIE Kechang

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Catalytic performance of CuZnAl slurry catalyst prepared by complete liquid phase technology for direct synthesis DME from syngas

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- Catalytic performance of CuZnAl slurry catalyst prepared by complete liquid phase technology for direct synthesis DME from syngas
- CIESC Journal Issue 1, Pages: 85-91(2011)
- 作者机构：
  
  太原理工大学煤科学与技术教育部和山西省重点实验室,山西,太原,030024
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 January 2011，
  
  Published：05 January 2011
- 稿件说明：
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GAO Zhihua, JIA Qin, HUANG Wei, et al. Catalytic performance of CuZnAl slurry catalyst prepared by complete liquid phase technology for direct synthesis DME from syngas[J]. CIESC Journal, 2011, (1): 85-91.
DOI：

GAO Zhihua, JIA Qin, HUANG Wei, et al. Catalytic performance of CuZnAl slurry catalyst prepared by complete liquid phase technology for direct synthesis DME from syngas[J]. CIESC Journal, 2011, (1): 85-91. DOI：

摘要

利用完全液相法制备了CuZnAl浆状催化剂，考察了反应温度、反应压力、搅拌速度、原料气组成等工艺条件

以及催化剂中各组分配比对浆态床合成气一步法合成二甲醚反应过程的影响。结果表明

利用完全液相法制备的催化剂在升温段和降温段活性保持稳定，随着反应时间的延长，催化剂活性呈现增长趋势，且其水煤气变换反应速率很快。Cu/Zn/Al摩尔比为1∶1∶2.09时催化剂的CO转化率与DME 选择性最好。

Abstract

CuZnAl slurry catalysts were prepared from the solution of these metal salts by a complete liquid phase technology and used directly for single-step synthesis of dimethyl ether (DME) from syngas.The effects of technological parameters including reaction temperature

pressure

rotator speed

inlet H2/CO molar ratio in feed gas

as well as the ratios of components in catalyst were studied systematically.It was found that during raising and reducing temperature the activity of CuZnAl slurry catalysts could keep stability

even increased with increase of reaction time.Both conversion of CO and DME yield increased with raising pressure from 2.5 MPa to 5.5 MPa

while the selectivity of DME changed little.The water-gas shift reaction over CuZnAl slurry catalysts proceeded very fast.Among the catalysts investigated in this work

the CuZnAl slurry catalyst with molar ratio of 1∶1∶2.09 was the best one.

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