Effect of Surfactants on Structure and Performance of Cu-Zn-Al Catalyst Prepared by Complete Liquid-phase Technology

Chem. J. Chinese Universities

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Effect of Surfactants on Structure and Performance of Cu-Zn-Al Catalyst Prepared by Complete Liquid-phase Technology

FAN Jin-Chuan, WU Hui, HUANG Wei*, XIE Ke-Chang

Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China

Received:2007-09-03 Revised:1900-01-01 Online:2008-05-10 Published:2008-05-10
Contact: HUANG Wei

Abstract

Abstract: A series of Cu-Zn-Al bifunctional slurry catalysts were prepared via the complete liquid-phase technology with different surfactants as the modifiers. The catalysts were characterized with N₂ adsorption, XRD and XPS, and the catalytic activity of the catalysts for direct synthesis of DME from syngas was evaluated in a slurry reactor. The effect of different kinds of surfactants on catalyst structure and performance was investigated. The results show that the surfactants can adjust specific surface area, pore structure, phase structure and crystalline size of the catalysts by acting with active metal mainly, thereby affect the catalytic activity of the catalysts. Nonionic surfactant can promote catalytic performance of the catalyst, cationic and anionic surfactants are unfavorable for the catalyst. The intensity of the function between surfactant and active metal is the key that has influence catalytic performance.

Key words: Surfactant, Cu-Zn-Al catalyst, Dimethyl ether, Complete liquid-phase technology, Slurry reactor

CLC Number:

O643

TrendMD:

FAN Jin-Chuan, WU Hui, HUANG Wei*, XIE Ke-Chang. Effect of Surfactants on Structure and Performance of Cu-Zn-Al Catalyst Prepared by Complete Liquid-phase Technology[J]. Chem. J. Chinese Universities, doi: .

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Effect of Surfactants on Structure and Performance of Cu-Zn-Al Catalyst Prepared by Complete Liquid-phase Technology

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