Journal
KOREAN JOURNAL OF CHEMICAL ENGINEERING
Volume 26, Issue 6, Pages 1574-1579Publisher
SPRINGER
DOI: 10.1007/s11814-009-0267-7
Keywords
Fatty Alcohol; Cu/Zn Catalyst; Deactivation; Water
Funding
- Shanghai Huayi (Group) Company
- Shanghai Zhongyuan Chemical Company Ltd
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The effect of water on Cu/Zn catalyst prepared by co-precipitation for hydrogenation of methyl laurate in a slurry phase was studied using a stirred autoclave reactor system. The catalysts were characterized by means of XRD, BET, H(2)-TPR, SEM and TEM. The results indicate that catalytic activity decreases with increased amount of water in methyl laurate. Correlating with the results from the above characterization, it is found that the main causes for the water deactivation of the Cu/Zn catalyst were the water occlusion of active catalyst sites by the low solubility of water in the substrate and the promotion of crystal growth, as well as the Cu/Zn catalyst agglomeration in the presence of water.
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