期刊
CHEMSUSCHEM
卷 7, 期 9, 页码 2482-2488出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402384
关键词
aluminum; biomass; chlorides; homogeneous catalysis; renewable resources
资金
- National Basic Research Program of China (973 program) [2013CB228103]
- Special Research Fund for the Doctoral Program of Higher Education of China [20120181130014]
Increased energy consumption and environmental concerns have driven efforts to produce chemicals from renewable biomass with high selectivity. Here, the selective conversion of cellulose in corncob residue, a process waste from the production of xylose, to levulinic acid was carried out using AlCl3 as catalyst and NaCl as promoter by a hydrothermal method at relatively low temperature. A levulinic acid yield of 46.8 mol % was obtained, and the total selectivity to levulinic acid with formic acid was beyond 90 %. NaCl selectively promoted the dissolution of cellulose from corncob residue, and significantly improved the yield and selectivity to levulinic acid by inhibiting lactic acid formation in the subsequent dehydration process. Owing to the salt effect of NaCl, the obtained levulinic acid could be efficiently extracted to tetrahydrofuran from aqueous solution. The aqueous solution with AlCl3 and NaCl could be recycled 4 times. Because of the limited conversion of lignin, this process allows for the production of levulinic acid with high selectivity directly from corncob residue in a simple separation process.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据