期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 2, 页码 1928-1932出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.08.026
关键词
Bio-oil; Swine manure; Crude glycerol; Liquefaction; GC-MS
资金
- USDA-CSREES-Evans-Allen Project [NCX-238-5-09-130-1]
The aim of this work was to investigate the principal structural and physico-chemical changes of bio-oils associated with liquefaction of swine manure with crude glycerol and its key fraction, free fatty acids. Bio-oils have been obtained from liquefaction processes at 340 degrees C. They were subjected to various physico-chemical characterization methods. FTIR data indicated a reduction in aliphatic structures and an increase in more oxidized and, probably, more polycondensed aromatic components resulting from the addition of crude glycerol to swine manure. GC-MS data indicated that the addition of crude glycerol facilitated the esterification reaction in sub-critical water to convert organic acids contained in bio-oil into various kinds of esters. The dynamic viscosity of bio-oil decreased dramatically by adding crude glycerol into the swine manure. (C) 2010 Elsevier Ltd. All rights reserved.
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