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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received March 13, 2001
Accepted May 24, 2001

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Characteristics of Carbon Dioxide Hydrogenation in a Fluidized Bed Reactor

Jun Sik Kim Hak Ki Kim¹ Sang Bong Lee¹ Myoung Jae Choi¹ Kyu Wan Lee¹ Yong Kang^†

Dept. of Chemical Engineering, Chungnam National University, Daejeon 305-764, Korea ¹Environment and Resource Team, KRICT, PO Box 107, Daejeon 305-600, Korea

Korean Journal of Chemical Engineering, July 2001, 18(4), 463-467(5), 10.1007/BF02698291

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Abstract

Characteristics of CO2 hydrogenation were investigated in a fluidized bed reactor (0.052 m ID×1.5 m in height). Coprecipitated Fe-Cu-K-Al catalyst (d(p)=75-90 μm) was used as a fluidized solid phase. It was found that the CO2 conversion decreases but the CO selectivity increases, whereas the space-time-yield attains maximum values with increasing gas velocity. The CO2 conversion has increased, but CO selectivity has decreased with increasing hydrogenation temperature, pressure or H2/CO2 ratio in the fluidized bed reactor. Also, the CO2 conversion and olefin selectivity appeared to be higher in the fluidized bed reactor than those of the fixed bed reactor.

Keywords

Carbon Dioxide Hydrogenation Fluidized Bed Catalyst

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