고압 WGS 반응을 위한 Cu-ZnO/Al_2O_3 촉매상에서 기-액 계면 촉매 반응 특성 연구

Title
고압 WGS 반응을 위한 Cu-ZnO/Al_2O_3 촉매상에서 기-액 계면 촉매 반응 특성 연구
Other Titles
Catalytic Activity Tests in Gas-Liquid Interface over Cu-ZnO/Al_2O_3 Catalyst for High Pressure Water-Gas-Shift Reaction
Author(s)
이태진김세훈박노국
Keywords
WGS; DME; Cu-ZnO/Al_2O_3; Gas - liquid interfacial catalysis; high-pressure; 수성가스전환; 다이메틸 에테르; 구리/아연/알루미나; 기-액 계면 촉매작용; 고압
Issue Date
201112
Publisher
한국수소및신에너지학회
Citation
한국수소및신에너지학회논문집, v.22, no.6, pp.905 - 912
Abstract
In this study, the novel concept catalytic reactor was designed for water-gas shift reaction (WGS) under high pressure. The novel concept catalytic reactor was composed of an autoclave, the catalyst, and liquid water. Cu-ZnO/Al_2O_3 as the low temperature shift catalyst was used for WGS reaction. WGS in the novel concept catalytic reactor was carried out at the ranges of 150∼250℃ and 30∼50 atm. The liquid water was filled at the bottom of the autoclave catalytic reactor and the catalyst of pellet type was located at the gas-liquid water interface. It was concluded that WGS reaction occurred over the surface of catalysts partially wetted with liquid water. The conversion of CO for WGS was also controlled with changing content of Cu and ZnO used as the catalytic active components. Meanwhile, the catalyst of honey comb type coated with Cu-ZnO/Al_2O_3 was used in order to increase the contact area between wet-surface of catalyst and the reactants of gas phase. It was confirmed from these experiments that H_2/CO ratio of the simulated coal gas increased from 0.5 to 0.8 by WGS at gas-liquid water interface over the wet surface of honey comb type catalyst at 250℃ and 50 atm.
URI
http://hdl.handle.net/YU.REPOSITORY/24073
ISSN
1738-7264
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공과대학 > 화학공학부 > Articles
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