Journal
FUEL PROCESSING TECHNOLOGY
Volume 147, Issue -, Pages 26-31Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fuproc.2016.01.016
Keywords
Lignite; Ionic liquid pretreatment; Pyrolysis
Funding
- Natural Science Foundation of China [U1261208]
- Shenhua Group Corporation Limited [U1261208]
- Natural Scientific Foundation of China [21476002, 21476003, 21476004, 21176001, U1361125, 21076001, 51174254]
- Strategic Chinese-Japanese Joint Research Program [2013DFG60060]
- State Key Laboratory Breeding Base of Coal Science and Technology
- Shanxi Province
- Ministry of Science and Technology
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The pyrolysis behaviors of Shengli lignite (SL) pretreated with ionic liquid 1-butyl-3-methyl-imidazolium dihydrogen phosphate ([Bmim]H2PO4) was studied in this paper. The effect of pretreatment temperature and the ratio of [Bmim]H2PO4 to SL on the pyrolysis behaviors of lignite were mainly investigated. Also the mechanism of the influence of [Bmim]H2PO4 pretreatment on the pyrolysis of lignite was investigated by FTIR analysis. It is found that [Bmim]H2PO4 pretreatment results in the drastical increase of the yield of tar, especially the yield of oil fraction. The yield of tars obtained from pyrolysis of SL treated in [Bmim]H2PO4 at 200 degrees C with the ratio of [Bmim]H2PO4 to SL at 1 increases by 1.7 times compared to that of SL. [Bmim]H2PO4 pretreatment results in the increase of yield of oil fraction, especially the yield of arenes and phenolics. The FT-IR analysis shows that [Bmim]H2PO4 pretreatment results in the increase of the content of carbonyl group and ether bond in SL. (C) 2016 Published by Elsevier B.V.
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