From residual to useful oil: Revalorization of glycerine from the biodiesel synthesis

被引:56
作者
Galan, Maria-Isabel [1 ]
Bonet, Jordi [1 ]
Sire, Romain [2 ]
Reneaume, Jean-Michel [2 ]
Plesu, Alexandra E. [3 ]
机构
[1] Univ Barcelona, Dept Chem Engn, E-08028 Barcelona, Spain
[2] Ecole Natl Super Genie Technol Ind, UPPA, LATEP, F-64075 Pau, France
[3] Univ Politehn Bucuresti, Dept Chem Engn, RO-011061 Bucharest, Romania
关键词
Glycerol; Triacetin; Biofuels; Reactive distillation;
D O I
10.1016/j.biortech.2009.01.066
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The reaction kinetics for the synthesis of glycerol triacetate (triacetin) from glycerol and acetic acid has been studied in the frame of revalorization of residual glycerol in biodiesel production. The reaction has taken place in a stirred reactor at a pressure of 1070 kPa. No external catalyst has been added because the reaction performs better by using as catalyst an excess of acetic acid. Kinetic parameters were obtained at 120 and 160 degrees C and a model of three reactions with monoacetin, diacetin and triacetin formation was proposed with a good agreement with the experimental results. Arrhenius constants were determined for the involved reactions. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3775 / 3778
页数:4
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