Silica-supported guanidine catalyst for continuous flow biodiesel production

被引：33

作者：

Balbino, Joao M. ^{[1
]}

de Menezes, Eliana W. ^{[1
]}

Benvenutti, Edilson V. ^{[2
]}

Cataluna, Renato ^{[1
]}

Ebeling, Guenter ^{[1
]}

Dupont, Jairton ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Chem, Lab Mol Catalysis, BR-91501970 Porto Alegre, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Inst Chem, Lab Quim Estado Solido & Superficies, BR-91501970 Porto Alegre, RS, Brazil

来源：

GREEN CHEMISTRY | 2011年 / 13卷 / 11期

关键词：

SOYBEAN OIL; VEGETABLE-OILS; CALCIUM-OXIDE; TRANSESTERIFICATION; ESTERIFICATION; CHROMATOGRAPHY; KINETICS; ACID;

D O I：

10.1039/c1gc15727b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The new silylant agent 3-(N, N '-dicyclohexylguanidine)-propyltrimethoxysilane (GPMS) was prepared straightforwardly in high yield by the simple reaction between 3-aminopropyltrimethoxysilane and dicyclohexylcarbodiimide. This new organosilane containing the basic dicyclohexylguanidine group covalently attached on silica gel is an efficient heterogeneous catalyst for the production of biodiesel. Conversions up to 98% were obtained for soybean oil methanolysis at 353 K for 3 h. This catalytic system was transposed to a semi-pilot scale in a continuous flow reactor and gave 44% conversion. The calculated activation energy of the methanolysis in this continuous system indicated that the reaction is probably under mass transfer limitations.

引用

页码：3111 / 3116

页数：6

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