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Author(s): |
Chen Sheng, Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education)
Wei Zhao, Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education)
Caihui Yan, Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education)
Wenjun Xu, Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education)
Shiteng Zhong, Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education)
Xianyong Wei, Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education)
Zhimin Zong, Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education) |
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Abstract: |
The conditions were optimized for preparation of bio-oil from pyrolysis of wheat stalk under microwave irradiation, the properties of bio-oil were also analyzed. The optimum conditions obtained from single- factor experiments was 445 W±5%, 30 min with the best yield 41.4%. GC/MS analysis denoted that bio-oil was mainly consisted with phenols, ester, ketone, aldehydes, acide, alcohol, ethers, hydrocarbons and sterides. Phenols, ester and ketone were also the major components, which took up about 74.1% in bio-oil. Measurement of bio-oil showed that the water content, pH, flash temperature, ignition temperature, density and viscosity were 20.12～21.08%, 3.79, 43.3 oC, 98.0 oC, 1.0649 g?cm-3 and 18×10-3 Pa?s separately. The results of this research showed apply microwave-assisted pyrolysis technology for the production of bio-oil has great significance and good foreground.
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