Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume 110, Issue -, Pages 382-389Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2014.10.004
Keywords
Lignite; Wheat straw; Plastic waste; Hydrothermal liquefaction; Sub-critical water
Funding
- Research Fund for the Doctoral Program of Higher Education for new teachers of China [20091404120002]
- Shanxi Province Science Foundation for Youths of China [2011021008-1]
- Soft Science Program of Shanxi Province [2011041015-01]
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Product distribution and character of the products during hydrothermal liquefaction of Jingou lignite, wheat straw and plastic waste in sub-critical water are investigated in an autoclave. The effects of blending ratio of lignite, wheat straw and plastic waste, temperature, initial nitrogen pressure and additives on product distributions are also studied. The results indicate that blending ratio of lignite, wheat straw and plastic waste, liquefaction temperature, initial pressure and additives all could influence the product distributions during hydrothermal liquefaction. When the blending ratio of Jingou lignite, wheat straw and plastic waste is 5:4:1, there exists synergism effect for oil yield, and the oil yield and the gas yield are all the highest at this ratio. The total conversion increases when the temperature increases from 260 degrees C to 300 degrees C and then decreases. For the oil yield, when the temperature increases from 260 degrees C to 80 degrees C, oil yield decreases, while when the temperature increases from 280 degrees C to 320 degrees C, the oil yield increases. Moreover, adding tourmaline during hydrothermal liquefaction of lignite, wheat straw and plastic waste could get higher oil yield, higher total conversion and higher quality oil than that when adding the traditional catalyst. (C) 2014 Elsevier B.V. All rights reserved.
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