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题名: Continuous production of biodiesel from microalgae by extraction coupling with transesterification under supercritical conditions
作者: Zhou, Dan1;  Qiao, Baoquan1;  Li, Gen1;  Xue, Song2;  Yin, Jianzhong1
关键词: Biodiesel ;  Microalgae ;  Supercritical fluid ;  Extraction coupling with reaction ;  Continuous
刊名: BIORESOURCE TECHNOLOGY
发表日期: 2017-08-01
DOI: 10.1016/j.biortech.2017.04.097
卷: 238, 页:609-615
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Technology
类目[WOS]: Agricultural Engineering ;  Biotechnology & Applied Microbiology ;  Energy & Fuels
研究领域[WOS]: Agriculture ;  Biotechnology & Applied Microbiology ;  Energy & Fuels
英文摘要: Raw material for biodiesel has been expanded from edible oil to non-edible oil. In this study, biodiesel continuous production for two kinds of microalgae Chrysophyta and Chlorella sp. was conducted. Coupling with the supercritical carbon dioxide extraction, the oil of microalgae was extracted firstly, and then sent to the downstream production of biodiesel. The residue after decompression can be reused as the material for pharmaceuticals and nutraceuticals. Results showed that the particle size of microalgae, temperature, pressure, molar ration of methanol to oil, flow of CO2 and n-hexane all have effects on the yield of biodiesel. With the optimal operation conditions: 40 mesh algae, extraction temperature 60 degrees C, flow of n-hexane 0.4 ml/min, reaction temperature: 340 degrees C, pressure: 18-20 MPa, CO2 flow of 0.5 L/min, molar ration of methanol to oil 84: 1, a yield of 56.31% was obtained for Chrysophyta, and 63.78% for Chlorella sp. due to the higher lipid content. (C) 2017 Published by Elsevier Ltd.
关键词[WOS]: SOYBEAN OIL ;  CHLORELLA-PROTOTHECOIDES ;  SUBCRITICAL METHANOL ;  PROCESS OPTIMIZATION ;  MARINE MICROALGAE ;  FLUID EXTRACTION ;  CARBON-DIOXIDE ;  CATALYST ;  REACTOR ;  LIPIDS
语种: 英语
WOS记录号: WOS:000402485500072
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152206
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Chem Machinery, State Key Lab Fine Chem, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Marine Bioprod Engn Grp, Dalian 16023, Peoples R China

Recommended Citation:
Zhou, Dan,Qiao, Baoquan,Li, Gen,et al. Continuous production of biodiesel from microalgae by extraction coupling with transesterification under supercritical conditions[J]. BIORESOURCE TECHNOLOGY,2017,238:609-615.
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