期刊
CATALYSIS COMMUNICATIONS
卷 34, 期 -, 页码 69-72出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2013.01.008
关键词
Ethanol; CuO-ZnO-Al2O3; Complete liquid phase technology; Slurry bed
资金
- National Natural Science Foundation of China [20676087]
- National Basic Research Program of China [2011CB211709]
- China Postdoctoral Science Foundation [2012M510784]
- Shanxi Province Science Foundation for Youths [012021005-1]
- Special/Youth Foundation of Taiyuan University of Technology [2012L042]
CuO-ZnO-Al2O3 catalysts were prepared by complete liquid phase technology with different addition sequences. The results indicated that the catalyst prepared by the addition of (C3H7O)(3)Al to Cu(NO3)(2) and Zn(NO3)(2) solutions shows excellent ethanol selectivity at the initial stages of reaction, reaching approximately 40%. X-ray photoelectron spectroscopy results showed that ethanol synthesis requires a higher Cu+ content and higher Cu/Zn ratio on the catalyst surface. The temperature-programmed reduction test revealed strong interactions between Cu species and zinc or aluminum oxide. The increase in the difficulty of catalyst reduction indicated higher ethanol selectivity. (C) 2013 Elsevier B.V. All rights reserved.
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