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Biodiesel production from algae oil high in free fatty acids by two-step catalytic conversion
Chen, Lin; Liu, Tianzhong; Zhang, Wei; Chen, Xiaolin; Wang, Junfeng
2012-05-01
Source PublicationBIORESOURCE TECHNOLOGY
Volume111Issue:1Pages:208-214
AbstractThe effect of storage temperature and time on lipid composition of Scenedesmus sp. was studied. When stored at 4°C or higher, the free fatty acid content in the wet biomass increased from a trace to 62.0% by day 4. Using two-step catalytic conversion, algae oil with a high free fatty acid content was converted to biodiesel by pre-esterification and transesterification. The conversion rate of triacylglycerols reached 100% under the methanol to oil molar ratio of 12:1 during catalysis with 2% potassium hydroxide at 65°C for 30 min. This process was scaled up to produce biodiesel from Scenedesmus sp. and Nannochloropsis sp. oil. The crude biodiesel was purified using bleaching earth. Except for moisture content, the biodiesel conformed to Chinese National Standards.; The effect of storage temperature and time on lipid composition of Scenedesmus sp. was studied. When stored at 4 degrees C or higher, the free fatty acid content in the wet biomass increased from a trace to 62.0% by day 4. Using two-step catalytic conversion, algae oil with a high free fatty acid content was converted to biodiesel by pre-esterification and transesterification. The conversion rate of triacylglycerols reached 100% under the methanol to oil molar ratio of 12:1 during catalysis with 2% potassium hydroxide at 65 degrees C for 30 min. This process was scaled up to produce biodiesel from Scenedesmus sp. and Nannochloropsis sp. oil. The crude biodiesel was purified using bleaching earth. Except for moisture content, the biodiesel conformed to Chinese National Standards. (C) 2012 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordWet Algae Biomass Biodiesel Free Fatty Acid Storage Conversion
Subject Area能源藻类资源
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2012.02.033
WOS KeywordCANOLA OIL ; MICROALGAE ; TRANSESTERIFICATION ; FEEDSTOCKS ; EXTRACTION ; BIOFUEL ; FUEL
Indexed BySCI
Language英语
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000302979100030
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/1141
Collection微藻生物技术团队
AffiliationChinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuel, Qingdao 266101, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Chen, Lin,Liu, Tianzhong,Zhang, Wei,et al. Biodiesel production from algae oil high in free fatty acids by two-step catalytic conversion[J]. BIORESOURCE TECHNOLOGY,2012,111(1):208-214.
APA Chen, Lin,Liu, Tianzhong,Zhang, Wei,Chen, Xiaolin,&Wang, Junfeng.(2012).Biodiesel production from algae oil high in free fatty acids by two-step catalytic conversion.BIORESOURCE TECHNOLOGY,111(1),208-214.
MLA Chen, Lin,et al."Biodiesel production from algae oil high in free fatty acids by two-step catalytic conversion".BIORESOURCE TECHNOLOGY 111.1(2012):208-214.
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