Esterification of Fatty Acid over Tunisian Acid Activated Clay: Kinetic Study

被引：14

作者：

Neji, Soumaya Bouguerra ^{[1
]}

Trabelsi, Mahmoud ^{[1
]}

Frikha, Mohamed H. ^{[1
]}

机构：

[1] Univ Sfax, Lab Appl Chem Heterocycles Fats & Polymers, Dept Chem, Fac Sci Sfax, Sfax, Tunisia

来源：

JOURNAL OF OLEO SCIENCE | 2011年 / 60卷 / 06期

关键词：

kinetic; fatty acid; esterification; Tunisian clay; fatty acid esters; CATION-EXCHANGE RESIN; TREATED CLAY; DIMERIZATION; ISOAMYLENE; CATALYSTS; BIODIESEL; BUTANOL; SYSTEM; BETA; OIL;

D O I：

10.5650/jos.60.293

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Tunisian acid activated clay was investigated as catalyst in the esterification of stearic acid with ethyl alcohol, carried out in a semi-continuous reactor. Kinetic study shows that the reaction is first order with respect to acid concentration. The activation energy found was 21 kJ/mol. This result suggests that the reaction process was controlled by a diffusional step. A kinetic model, giving the apparent constant rate as a function of temperature and catalyst concentration, has been established. This equation has been then successfully applied for a complex mixture of fatty acid.

引用

页码：293 / 299

页数：7

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