Comparison of Single-Stage and Two-Stage CO2 Hydrogenation for Methanol Synthesis Gain and Phase Margins.
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- Lee Eun-Ku
- Department of Chemical Engineering, Yonsei University
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- Song Min-Woo
- Department of Chemical Engineering, Yonsei University
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- Hahm Hyun-Sik
- Department of Chemical Engineering, Myongji University
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- Kim Kyung-Lim
- Department of Chemical Engineering, Yonsei University
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Abstract
A two-stage CO2 hydrogenation reaction was conducted to increase methanol yield. At the first-stage, CO2 was converted to CO by the reverse water-gas shift reaction with Cu/ZnO/Al2O3, Fe2O3/Cr2O3, or MoS2/TiO2 catalyst, and then at the second-stage, methanol was synthesized from the effluents of the first-stage with a commercial methanol synthesis catalyst, Cu/ZnO/Al2O3. In the case of the two-stage CO2 hydrogenation reaction, CO that was produced by the first-stage reverse water-gas shift reaction contributed to the methanol synthesis, increasing the methanol yield. Especially, with the two-stage CO2 hydrogenation reaction, methanol yield obtained was two or three times higher than that of the single-stage one. It was found that to increase the methanol yield in the two-stage hydrogenation reaction, more CO2 should be converted to CO at the first-stage. The XRD patterns of the Cu/ZnO/Al2O3 catalyst before and after reaction showed the presence of metallic bulk Cu and the absence of other bulk Cu species.
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 36 (2), 126-131, 2003
The Society of Chemical Engineers, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001204564820096
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- NII Article ID
- 130000019803
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- NII Book ID
- AA00709658
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- COI
- 1:CAS:528:DC%2BD3sXhvVOmtLk%3D
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- ISSN
- 18811299
- 00219592
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- NDL BIB ID
- 6452140
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed