Combined Use of a Two-Stage Packed Bed Reactor with a Glycerol Extraction Column for Enzymatic Biodiesel Synthesis from Macaw Palm Oil

Biodiesel production by ethanolysis of macaw palm oil mediated by Burkholderia cepacia lipase immobilized on SiO2-PVA was assessed in packed bed reactors (PBRs). Reactors with different height-to-diameter ratios (l/d) were used for continuous runs carried out using an oil-to-ethanol molar ratio of 1...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2017-01, Vol.56 (1), p.1-7
Main Authors: Ramos, Lucas, Martin, Lucas S, Santos, Júlio C, de Castro, Heizir F
Format: Article
Language:English
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Summary:Biodiesel production by ethanolysis of macaw palm oil mediated by Burkholderia cepacia lipase immobilized on SiO2-PVA was assessed in packed bed reactors (PBRs). Reactors with different height-to-diameter ratios (l/d) were used for continuous runs carried out using an oil-to-ethanol molar ratio of 1:12 at a fixed space-time (14 h). The best performance was attained by using reactor with an l/d of 15, which was further used to perform runs with different space-times in a two-stage PBR by incorporating a column with cationic resin for removing the glycerol formed as byproduct. The system operation for a space-time of 16 h resulted in a productivity of 37.9 ± 2.4 mgester·gmedium –1·h–1 (ethyl esters yield = 96.3 ± 2.1%). Efficient glycerol removal helped the biocatalyst stability, with a half-life (t 1/2) of 1512 h. The results demonstrate that a continuous enzymatic production of biodiesel from macaw palm oil can generate high yield in a two-stage PBR system incorporating a glycerol extraction column.
ISSN:0888-5885
1520-5045
DOI:10.1021/acs.iecr.6b03811