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DC Field | Value | Language |
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dc.citation.endPage | 424 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 414 | - |
dc.citation.title | JOURNAL OF CATALYSIS | - |
dc.citation.volume | 144 | - |
dc.contributor.author | Lee, Jae Sung | - |
dc.contributor.author | LEE, Kee Hyouk | - |
dc.contributor.author | LEE, Sang Young | - |
dc.contributor.author | Kim, Young Gul | - |
dc.date.accessioned | 2023-12-22T13:06:10Z | - |
dc.date.available | 2023-12-22T13:06:10Z | - |
dc.date.created | 2015-07-27 | - |
dc.date.issued | 1993-12 | - |
dc.description.abstract | Methanol synthesis from CO2/H2 and CO/H2 has been compared over a Cu/ZnO/Al2O3 catalyst. Methanol synthesis was much faster with CO2/H2 than with CO/H2, particularly at low temperatures. A trace amount of CO2 improved the rates significantly. Thus it appeared that CO2 was the primary source of methanol with CO/CO2/H2 feed. When space velocities were varied, both of the previously conflicting observations on the effect of CO2/CO composition, i.e., monotonical increase in synthesis rate vs the presence of a maximum rate as CO2 concentration increased, were observed. The different conversion levels and consequent difference in surface oxygen coverage and/or water appeared to be responsible for the different effects. The more oxidized surface state of copper obtained for CO2/H2 was more active and stable in methanol synthesis than the overreduced surface obtained for the CO/H2 feed. Due to the promotional and inhibition effects of water for CO/H2 and CO2/H2 feeds, respectively, higher space velocities yielded higher synthesis rates for CO2/H2 and the opposite effect was observed for the CO/H2 feed. © 1993 Academic Press. All rights reserved. | - |
dc.identifier.bibliographicCitation | JOURNAL OF CATALYSIS, v.144, no.2, pp.414 - 424 | - |
dc.identifier.doi | 10.1006/jcat.1993.1342 | - |
dc.identifier.issn | 0021-9517 | - |
dc.identifier.scopusid | 2-s2.0-0000481388 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/12983 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0021951783713424 | - |
dc.identifier.wosid | A1993MM39300004 | - |
dc.language | 영어 | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.title.alternative | A COMPARATIVE-STUDY OF METHANOL SYNTHESIS FROM CO2/H-2 AND CO/H-2 OVER A CU/ZNO/AL2O3 CATALYST | - |
dc.title | A COMPARATIVE-STUDY OF METHANOL SYNTHESIS FROM CO2/H-2 AND CO/H-2 OVER A CU/ZNO/AL2O3 CATALYST | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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