Process optimization for microwave-assisted direct liquefaction of Sargassum polycystum C.Agardh using response surface methodology.

نویسندگان

  • Jingxue Guo
  • Yingbin Zhuang
  • Limei Chen
  • Junhai Liu
  • Demao Li
  • Naihao Ye
چکیده

Response surface methodology (RSM) was used to optimize the microwave-assisted direct liquefaction of Sargassum polycystum C.Agardh in ethylene glycol (EG) with H(2)SO(4) 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°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).

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عنوان ژورنال:
  • Bioresource technology

دوره 120  شماره 

صفحات  -

تاریخ انتشار 2012