Acid-catalyzed homogeneous esterification reaction for biodiesel production from palm fatty acids

被引：228

作者：

Aranda, Donato A. G. ^{[1
]}

Santos, Rafael T. P. ^{[1
]}

Tapanes, Neyda C. O. ^{[1
]}

Ramos, Andre Luis Dantas ^{[2
]}

Antunes, Octavio Auqusto C. ^{[3
]}

机构：

[1] Univ Fed Rio de Janeiro, Ctr Tecnol, Escola Quim, Lab Tecnol Verdes,Ilha Fundao, BR-21945970 Rio De Janeiro, RJ, Brazil

[2] Inst Tecnol & Pesquisa, Lab Catalise, LCAT, BR-49032490 Aracaju, Sergipe, Brazil

[3] Univ Fed Rio de Janeiro, Inst Quim, BR-21949900 Rio De Janeiro, RJ, Brazil

来源：

CATALYSIS LETTERS | 2008年 / 122卷 / 1-2期

关键词：

esterification; biodiesel; fatty acid; homogeneous catalysis;

D O I：

10.1007/s10562-007-9318-z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This work deals with esterification of palm fatty acids to produce biodiesel in a batch reactor, using homogeneous acid catalysts, evaluating the effect of the alcohol used, presence of water, type and concentration of catalysts. Methanesulfonic and sulfuric acid were the best catalysts. Reaction with methanol showed greater yields. It was showed very clearly that the presence of water in the reaction medium showed a negative effect in the reaction velocity. Kinetic parameters were estimated and molecular modeling was performed. Protonation of the carboxylic moiety of the fatty acid were defined as rate determinant step for the reaction.

引用

页码：20 / 25

页数：6

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