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An important parameter for synthesis of Al2O3 supported Cu-Zn catalysts in low-temperature water-gas shift reaction under practical reaction condition

Title
An important parameter for synthesis of Al2O3 supported Cu-Zn catalysts in low-temperature water-gas shift reaction under practical reaction condition
Author
전병훈
Keywords
Aging time and temperature; Cu-Zn-Al; LT-WGS; Physical properties
Issue Date
2019-06
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v. 44, no. 20, Page. 14853-14860
Abstract
Herein, we investigated the effects of aging time and temperature on the performance of co-precipitation-prepared Cu-Zn-Al catalysts in the low-temperature water-gas shift (LT-WGS) reaction. The highest CO conversion within the employed temperature range as well as very stable activity over 200 h were observed for the catalyst prepared at 80 degrees C and aged for 72 h, which was ascribed to its high surface area and close-to-100% degree of CuO reduction. Conversely, catalysts aged at temperatures below 80 degrees C had poor physical properties, while aging for <72 h resulted in the formation of bulk copper oxide, which was hardly reduced under the low-temperature conditions. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0360319919314338?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/151852
ISSN
0360-3199; 1879-3487
DOI
10.1016/j.ijhydene.2019.04.042
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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