Biodiesel production using soybean oil catalyzed by K2O/Al2O3

Author

Jiang, Lian-fei ; Cui, Qiu-na ; Li, Guang-jian ; Chen, Ying-rning

Author_Institution

Fac. of Archit. Environ. & Energy Eng., Henan Univ. of Urban Constr., Pingdingshan, China

Volume

1

fYear

2011

fDate

20-22 May 2011

Firstpage

432

Lastpage

435

Abstract

Solid alkali catalyst was prepared with K₂CO₃ immobilized on alumina by impregnation method. Represented with SEM, IR and BET techniques, the catalysts indicated relatively uniform particle size distribution with perfect particle surface area, pore volume and pore size. Soybean oil was catalyzed to investigate the catalysis characteristics. The results showed that the maximum conversion rate of 74.5% was obtained under the optimal reaction conditions: alcohol/oil molar ratio of 9:1, 60°C, 5 hours, 3wt% catalyst. The catalyst could be reused with half-life of 7 times. The major components of biodiesel are mixture of C₁₇ and C₁₉ unsaturated fatty acid methyl esters.

Keywords

alumina; biofuel; catalysis; catalysts; infrared spectra; particle size; potassium compounds; scanning electron microscopy; vegetable oils; BET technique; IR technique; K₂O-Al₂O₃; SEM technique; alcohol-oil molar ratio; alumina; biodiesel production; catalysis characteristics; impregnation method; particle size distribution; particle surface area; solid alkali catalyst; soybean oil; temperature 60 degC; time 5 hour; unsaturated fatty acid methyl ester; Biofuels; biodiesel; catalyst; impregnation method; representation; transesterification;

fLanguage

English

Publisher

ieee

Conference_Titel

Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-61284-749-8

Type

conf

DOI

10.1109/ICMREE.2011.5930846

Filename

5930846