Journal
KOREAN JOURNAL OF CHEMICAL ENGINEERING
Volume 36, Issue 8, Pages 1243-1248Publisher
KOREAN INSTITUTE CHEMICAL ENGINEERS
DOI: 10.1007/s11814-019-0309-8
Keywords
Water-gas Shift; Cu-Zn-Al; Precipitation Process; pH; Injection Rate
Funding
- Korea Institute of Energy Research [B7-2424]
- Yonsei University
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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.
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