Esterification of High Free Fatty Acid Rice Bran Oil: Parametric and Kinetic Study

被引：18

作者：

Arora, R. ^{[1
,2
]}

Toor, A. P. ^{[1
,3
]}

Wanchoo, R. K. ^{[1
]}

机构：

[1] Panjab Univ, Dr SS Bhatnagar Univ Inst Chem Engn & Technol, Chandigarh 160014, India

[2] Shaheed Bhagat Singh State Tech Campus, Ferozepur, India

[3] Panjab Univ, Energy Res Ctr, Chandigarh 160014, India

来源：

CHEMICAL AND BIOCHEMICAL ENGINEERING QUARTERLY | 2015年 / 29卷 / 04期

关键词：

biodiesel; esterification; high free fatty acid oil; homogeneous catalyst; kinetics; BIODIESEL PRODUCTION; OLEIC-ACID;

D O I：

10.15255/CABEQ.2014.2117

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The esterification of free fatty acids (FFA) in rice bran oil (RBO) with methanol in the presence of sulfuric acid as a homogeneous catalyst was studied. The effects of catalyst concentration (0.15 to 1.0 wt%), reaction temperature (318 K to 333 K), and molar ratio of oil to methanol (1:5 to 1:30) on the conversion of FFA were investigated to optimize the conditions for maximum conversion of FFAs. A detailed kinetic study was carried out using second-order pseudo-homogeneous kinetic model. The kinetic parameters were obtained and activation energy was determined from the Arrhenius plot. The activation energy of 23.21 kJ mol(-1) and pre-exponential factor of 32.65 L mol(-1) min(-1) was obtained under the optimum catalyst concentration of 0.5 wt %, stirring speed of 500 rpm and oil to methanol ratio 1:20.

引用

页码：617 / 623

页数：7

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