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Biocatalytic alternative for bio-glycerol conversion with alkyl carbonates via a lipase-linked magnetic nano-particles assisted process

Paper ID Volume ID Publish Year Pages File Format Full-Text
45314 46409 2014 6 PDF Available
Title
Biocatalytic alternative for bio-glycerol conversion with alkyl carbonates via a lipase-linked magnetic nano-particles assisted process
Abstract

Bio-glycerol (B-Gly) was converted to glycerol carbonate (GlyC) as an important added-value product using an advanced biocatalytic process involving the glycerol (Gly) carbonylation with dimethyl carbonate (DMC) assisted by a heterogeneous enzyme biocatalyst (lipase covalently attached on magnetic nano-particles surface). The biocatalytic process was set up optimizing the experimental parameters (e.g. molar ratio of the reagents, temperature, incubation time and catalyst content). In addition, the efficiency of DMC as carbonylation agent was evaluated against diethyl carbonate (DEC) and dibenzyl carbonate (DBC). B-Gly was tested as a raw material for GlyC synthesis in the set up biocatalytic process using commercial pure Gly (S-Gly) as reference. B-Gly was produced based on a conventional transesterification process applied to both crude and residual sun-flower oil. Crude sun-flower oil was the typical commercial one and residual sun-flower oil was that recovered from the cooking process. Comparable performances were obtained using B-Gly from residual oil and S-Gly (e.g. conversion of Gly of 36% and 45% for selectivity in GlyC of 90% and 92%, respectively), while the use of B-Gly from crude residual oil led to a Gly conversion of only 27% with selectivity in GlyC of 95%.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Lipase-linked magnetic nano-particle catalyzed the glycerol conversion to glycerol carbonate. ► Experimental conditions of the biocatalytic process were optimized. ► Bio-glycerol, by-product of biodiesel was used as substrate for glycerol carbonate synthesis.

Keywords
Biocatalysis; Immobilized lipase; Magnetic nano-particles; Glycerol carbonate; Bio-glycerol
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Biocatalytic alternative for bio-glycerol conversion with alkyl carbonates via a lipase-linked magnetic nano-particles assisted process
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 145, February 2014, Pages 120–125
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us