Effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst for water-gas shift reaction

To investigate the effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst, the pH value and injection rate in the precipitation process were systematically changed, and the water-gas shift reaction was carried out. The Cu-Zn-Al catalyst showed the highest CO conver...

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Bibliographic Details
Published inThe Korean journal of chemical engineering Vol. 36; no. 8; pp. 1243 - 1248
Main Authors Na, Hyun-Suk, Ahn, Seon-Yong, Shim, Jae-Oh, Jeon, Kyung-Won, Kim, Hak-Min, Lee, Yeol-Lim, Jang, Won-Jun, Jeon, Byong-Hun, Roh, Hyun-Seog
Format Journal Article
LanguageEnglish
Published New York Springer US 01.08.2019
Springer Nature B.V
한국화학공학회
Subjects
Aluminum
Biotechnology
Catalysis
Catalysts
Chemical precipitation
Chemistry
Chemistry and Materials Science
Copper
Crystallites
Industrial Chemistry/Chemical Engineering
Materials Science
Organic chemistry
Properties (attributes)
Reaction Engineering
Shift reaction
Zinc
화학공학
Water-gas Shift
pH
Cu-Zn-Al
Injection Rate
Precipitation Process
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Summary:To investigate the effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst, the pH value and injection rate in the precipitation process were systematically changed, and the water-gas shift reaction was carried out. The Cu-Zn-Al catalyst showed the highest CO conversion when the optimized synthesis parameters (i.e., pH=10-10.5 and injection rate=30 ml/min) were employed. This is mainly due to the enhanced physicochemical properties such as a high Brunauer-Emmett-Teller surface area, small crystallite size, high Cu dispersion, and easier reducibility.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-019-0309-8