期刊
CATALYSIS TODAY
卷 234, 期 -, 页码 107-112出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2014.03.021
关键词
Sorbitol; Rhenium; Nickel; Hydrogenative cleavage; In situ hydrogen generation
资金
- Nature Sciences Foundation of China [21103174, 21233008]
- Strategic Priority Research Program-Climate Change: Carbon Budget and Related Issues of the Chinese Academy of Sciences [XDA05010203]
The use of high pressure fossil derived hydrogen limits the commercial prospects of transforming sorbitol to glycols. Ni-Re/C catalyst which was developed in this study demonstrated high selectivity toward hydrogenative cleavage of C2-C3 and C3-C4 bonds of sorbitol to produce glycols under 1 MPa nitrogen. Acetol which is proposed as important intermediate to explain the reaction mechanism was first detected in the sorbitol conversion reactions. Detailed investigations showed that the presence of Re could prevent the sintering of Ni particles during the reduction process and make the catalyst efficiently generate hydrogen on the active sites to selectively cleave C-C bonds in sorbitol under nitrogen atmosphere. (C) 2014 Elsevier B.V. All rights reserved.
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