期刊
BIORESOURCE TECHNOLOGY
卷 120, 期 -, 页码 19-25出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.06.013
关键词
Sargassum polycystum C.Agardh; Liquefaction; Response surface methodology; Bio-oil; Microwave
资金
- National Special Fund for Transgenic Project [2009ZX08009-019B]
- Hi-Tech Research and Development Program (863) of China [2009AA10Z106]
- Natural Science Foundation of Shandong Province [2009ZRA02075]
- Shandong Science and Technology Plan Project [2011GHY11528]
- National Natural Science Foundation of China [41176153]
- National Science & Technology Pillar Program [2008BAD95B11]
- Fundamental Research Funds for the Central Universities [JUSRP21115]
Response surface methodology (RSM) was used to optimize the microwave-assisted direct liquefaction of Sargassum polycystum C.Agardh in ethylene glycol (EG) with H2SO4 as a catalyst. Based on the results of single factor experiments, EG-to-feedstock ratio, temperature and catalyst content were chosen as independent variables for a central composite rotatable design (CCRD). The optimal liquefaction conditions were estimated as: the EG-to-feedstock ratio of 18.50:1 (w/w), the temperature of 170 degrees C, the reaction time of 15 min, catalyst content of 9.6% (catalyst/EG, w/w%) and microwave power of 400 W with the liquefaction yield of 87.70%. The bio-oils were mainly composed of fatty acid methyl ester and alkane with a long chain from C-17 to C-20. (c) 2012 Elsevier Ltd. All rights reserved.
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