期刊
FUEL
卷 265, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2019.116946
关键词
Crop straw; Hydrothermal liquefaction; Bio-oil; Biochemical composition
资金
- National Natural Science Foundation of China [21776063, U1704127]
- Scientific and Technological Innovation Team of the University of Henan Province [18IRTSTHN010]
- Outstanding Youth Foundation for Scientific and Technological Innovation in Henan Province [184100510013]
- Key Scientific Research Projects in Colleges and Universities of Henan Province [18A480003]
- Scientific and Technological Research Projects of Henan Province [172102210026]
Hydrothermal liquefaction of four crop straws, including corn straw (CS), peanut straw (PS), soybean straw (SS), and rice straw (RS), were examined at 320 degrees C for 60 min to explore the effect of feedstock composition on the products distribution and properties of the bio-oil. SS produced the highest bio-oil yield of 15.8 +/- 0.8 wt%, followed by RS (15.1 +/- 0.7 wt%), PS (14.6 +/- 0.7 wt%), and CS (7.9 +/- 0.7 wt%). The significant difference in bio-oil yield was ascribed to the cellulose content and the mass ratio of cellulose to hemicellulose (w(cellulose)/w(hemicellulose)) of the feedstock. Elemental analysis showed that the four bio-oils had similar elemental compositions of C, H and O. Ketones and phenolic compounds occupied a large proportion of the four bio-oils, and their relative contents were related to the cellulose content and w(cellulose)/w(hemicellulose) value of the feedstock. Feedstock with high cellulose content and w(cellulose)/w(hemicellulose) value would lead to bio-oil with high amount of ketones.
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