title: Enzymatic coproduction of biodiesel and glycerol carbonate from soybean oil in solvent-free system.
abstract: The enzymatic coproduction of biodiesel and glycerol carbonate by transesterification of soybean oil and dimethyl carbonate (DMC) has been studied in a solvent-free system. The effects on biodiesel and glycerol carbonate conversion of reaction conditions including the kind of enzyme, the amount of enzyme, the molar ratio of DMC to soybean oil, the reaction temperature, and water addition were investigated. The optimal conditions for biodiesel and glycerol carbonate were 20% Novozym 435, 10:1 molar ratio of DMC to soybean oil, and 0.7% water addition. Under these conditions, the conversions of 96.4% biodiesel and 92.1% glycerol carbonate have been achieved after 48h.
authors.affiliation: Department of Chemical Engineering, Kwangwoon University, Seoul 139-701, Republic of Korea.
authors.forename: A-Ra
authors.initials: AR
authors.lastname: Go
authors.forename: Youngrak
authors.initials: Y
authors.lastname: Lee
authors.forename: Young Hwan
authors.initials: YH
authors.lastname: Kim
authors.forename: Sehkyu
authors.initials: S
authors.lastname: Park
authors.forename: Joongso
authors.initials: J
authors.lastname: Choi
authors.forename: Jinwon
authors.initials: J
authors.lastname: Lee
authors.forename: Sung Ok
authors.initials: SO
authors.lastname: Han
authors.forename: Seung Wook
authors.initials: SW
authors.lastname: Kim
authors.forename: Chulhwan
authors.initials: C
authors.lastname: Park
mesh_terms: D056804:Biofuels; D001709:Biotechnology; D002254:Carbonates / Q000378:metabolism; D004800:Enzymes, Immobilized; D004951:Esterification; D005561:Formates; D005656:Fungal Proteins; D005990:Glycerol / Q000031:analogs & derivatives* / Q000378:metabolism; D008049:Lipase; D012997:Solvents; D013024:Soybean Oil / Q000378:metabolism*; D013696:Temperature; D014867:Water
chemical_list: D056804:Biofuels; D002254:Carbonates; D004800:Enzymes, Immobilized; D005561:Formates; D005656:Fungal Proteins; D012997:Solvents; D014867:Water; D013024:Soybean Oil; C093667:Novozyme 435; D008049:Lipase; C023025:methyl carbonate; D005990:Glycerol
keywords: Biodiesel; Glycerol carbonate; Novozym 435; Solvent-free system