title: Enzymatic coproduction of biodiesel and glycerol carbonate from soybean oil and dimethyl carbonate.
abstract: The enzymatic coproduction of biodiesel and glycerol carbonate by the transesterification of soybean oil was studied using lipase as catalyst in organic solvent. To produce biodiesel and glycerol carbonate simultaneously, experiments were designed sequentially. Enzyme screening, the molar ratio of dimethyl carbonate (DMC) to soybean oil, reaction temperature and solvent effects were investigated. The results of enzyme screening, at 100 g/L Novozym 435 (immobilized Candida antarctica lipase B), biodiesel and glycerol carbonate showed conversions of 58.7% and 50.7%, respectively. The optimal conditions were 60 °C, 100 g/L Novozym 435, 6.0:1 molar ratio with tert-butanol as solvent: 84.9% biodiesel and 92.0% glycerol carbonate production was achieved.
authors: Department of Chemical Engineering, Kwangwoon University, 447-1, Wolgye-Dong, Nowon-Gu, Seoul 139-701, Republic of Korea.
authors: Pil-Je
authors: PJ
authors: Seong
authors: Byoung Wook
authors: BW
authors: Jeon
authors: Myunggu
authors: M
authors: Lee
authors: Dae Haeng
authors: DH
authors: Cho
authors: Duk-Ki
authors: DK
authors: Kim
authors: Kwang S
authors: KS
authors: Jung
authors: Seung Wook
authors: SW
authors: Kim
authors: Sung Ok
authors: SO
authors: Han
authors: Yong Hwan
authors: YH
authors: Kim
authors: Chulhwan
authors: C
authors: Park
mesh_terms: D001426:Bacterial Proteins / Q000378:metabolism*; D055162:Biocatalysis; D056804:Biofuels; D004800:Enzymes, Immobilized; D004951:Esterification; D005561:Formates / Q000378:metabolism*; D005656:Fungal Proteins / Q000378:metabolism*; D005990:Glycerol / Q000031:analogs & derivatives* / Q000378:metabolism; D008049:Lipase / Q000378:metabolism*; D012997:Solvents; D013024:Soybean Oil / Q000378:metabolism*; D013379:Substrate Specificity; D013696:Temperature; D020002:tert-Butyl Alcohol
chemical_list: D001426:Bacterial Proteins; D056804:Biofuels; D004800:Enzymes, Immobilized; D005561:Formates; D005656:Fungal Proteins; D012997:Solvents; D013024:Soybean Oil; C093666:Lipozyme; D008049:Lipase; C431349:lipase B, Candida antarctica; C023025:methyl carbonate; D020002:tert-Butyl Alcohol; D005990:Glycerol