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Effect of copper content on Cu–Mn–Zn/zeolite-Y catalysts for the synthesis of dimethyl ether from syngas

Paper ID Volume ID Publish Year Pages File Format Full-Text
52399 46873 2006 5 PDF Available
Title
Effect of copper content on Cu–Mn–Zn/zeolite-Y catalysts for the synthesis of dimethyl ether from syngas
Abstract

The activity of Cu–Mn–Zn/zeolite-Y catalysts for dimethyl ether (DME) synthesis from syngas can be affected by the content of copper in the catalyst. The appropriate ratio of Cu/(Cu + Mn + Zn) for catalyst activity was above 0.6, and the conversion of CO and the selectivity of DME reached 78% and 67%, respectively, under the reaction conditions of 2.0 MPa, 250 °C, 1500 h−1. The results of catalyst characterization by powder X-ray diffraction (XRD), temperature-programmed reduction (TPR) and temperature- programmed desorption (TPD) showed that the excess CuO in conjunction with mixed oxide was easier reduction, much more beneficial to the activation of CO at lower temperature and higher catalytic activity for DME synthesis.

Keywords
Manganese; Zinc; Cu-based catalyst; Dimethyl ether; Synthesis gas
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Effect of copper content on Cu–Mn–Zn/zeolite-Y catalysts for the synthesis of dimethyl ether from syngas
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 7, Issue 11, November 2006, Pages 827–831
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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