Effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst for water-gas shift reaction
- 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
- Issue Date
- Aug-2019
- Publisher
- KOREAN INSTITUTE CHEMICAL ENGINEERS
- Keywords
- Water-gas Shift; Cu-Zn-Al; Precipitation Process; pH; Injection Rate
- Citation
- KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.36, no.8, pp.1243 - 1248
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- KOREAN JOURNAL OF CHEMICAL ENGINEERING
- Volume
- 36
- Number
- 8
- Start Page
- 1243
- End Page
- 1248
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/147348
- DOI
- 10.1007/s11814-019-0309-8
- ISSN
- 0256-1115
- Abstract
- 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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