期刊
CATALYSIS TODAY
卷 195, 期 1, 页码 22-31出版社
ELSEVIER
DOI: 10.1016/j.cattod.2012.03.067
关键词
Glycerol; 1,2-Propanediol; Hydrogenolysis; In situ hydrogen; Heterogeneous catalysis
资金
- Spanish Ministry of Science and Innovation [ENE2009-12743-C04-04]
- Basque Government (Researcher Training Programme of the Department of Education, Universities and Research)
Important biorefinery processes imply hydrogenolysis reactions where high hydrogen pressures are required. As most of the nowadays available hydrogen gas is produced from fossil fuels there are great incentives to develop alternative technologies able to both substitute non-renewable reactants and operate at lower severity conditions. The use of hydrogen donor molecules from renewable origin can be a promising alternative to tackle simultaneously with both objectives. In the present study the use of methanol, 2-propanol and formic acid in the glycerol hydrogenolysis process to obtain 1,2-propanediol was investigated using a Ni-Cu/Al2O3 catalyst, prepared by sol-gel method, and under N-2 atmosphere. A semi-continuous set-up was designed in which the donor solution was continuously fed into the autoclave reactor containing the glycerol aqueous phase. The best results in terms of glycerol conversion and 1,2-propanediol selectivity were obtained with formic acid. (C) 2012 Elsevier B.V. All rights reserved.
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