1. Continuous Packed-Bed Biodiesel Polishing Using Particulate Materials
- Author
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J. Vladimir Oliveira, Marintho Bastos Quadri, Nilva R. Uliana, and Marshall Palliga
- Subjects
Packed bed ,Biodiesel ,Chromatography ,Immobilized enzyme ,020209 energy ,General Chemical Engineering ,Energy Engineering and Power Technology ,02 engineering and technology ,Raw material ,Silicate ,chemistry.chemical_compound ,Fuel Technology ,Adsorption ,chemistry ,0202 electrical engineering, electronic engineering, information engineering ,lipids (amino acids, peptides, and proteins) ,Ion-exchange resin ,Water content - Abstract
This work reports experimental data on dry-washing of biodiesel produced by enzyme-catalyzed reaction using ion exchange resins, a commercial immobilized enzyme, and a magnesium silicate adsorbent. Experiments were carried out in continuous-mode packed-bed column, varying operating temperature and pressure, and residence time toward reaching the current specifications of the biodiesel samples tested. Besides, the amounts of free fatty acids (FFA), raw material, and products were characterized with regard to the content of monoacylglycerol (MAG), diacylglycerol (DAG), and triacylglycerol (TAG). It is shown that resins and the immobilized enzyme presented, to a certain extent, satisfactory results, in terms of FFA reduction, while the use of the adsorbent allowed reaching “on spec” biodiesel. It was observed that the water content dramatically affected the quality of the final product, which severely hindered one from reaching lower FFA contents. Integration of resins together with silicate adsorbent seems ...
- Published
- 2016
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