期刊
APPLIED CATALYSIS A-GENERAL
卷 281, 期 1-2, 页码 259-265出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2004.11.047
关键词
higher alcohol synthesis; copper/cobalt catalyst; syngas
Cu-Co2O3/ZnO, AlO3 catalysts prepared by co-precipitation were studied by temperature-programmed reduction (TPR) and chemisorption of nitrous oxide (NO). Catalytic activity for synthesis Of C-1-C-6 alcohols was determined in a fixed bed flow reactor system. Changes in activity and selectivity were obtained with respect to changes of percentage composition of Co-Cu catalyst, temperature (270-355 degrees C), ratio of H-2/CO (0.5-2), pressure (40-70 atm), feeding flow with GHSV (2260-5060 h(-1)). In optimum condition, the selectivity for alcohol (SA) and heavier alcohols (S-C2OH-) were more that 80% and 50%, respectively. The distribution of alcohol products obeys Schulz-Flory distribution. The chain growth probability factor of higher alcohols was independent of conversion. (c) 2004 Elsevier B.V. All rights reserved.
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