Microwave-accelerated energy-efficient esterification of free fatty acid with a heterogeneous catalyst

This paper shows energy-efficiency of microwave-accelerated esterification of free fatty acid with a heterogeneous catalyst by net microwave power measurement. In the reaction condition of 5wt% sulfated zirconia and 1:20M ratio of oil to methanol at 60°C and atmospheric pressure, more than 90% conve...

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Bibliographic Details
Published in:Bioresource technology 2011-02, Vol.102 (3), p.3639-3641
Main Authors: Kim, Daeho, Choi, Jinju, Kim, Geun-Ju, Seol, Seung Kwon, Ha, Yun-Chul, Vijayan, M., Jung, Sunshin, Kim, Bo Hyun, Lee, Gun Dae, Park, Seong Soo
Format: Article
Language:English
Subjects:
Biodiesel
Biofuel production
Biological and medical sciences
Biotechnology
Catalysis
Energy
Energy efficiency
Esterification
Fatty Acids, Nonesterified - chemistry
Fatty Acids, Nonesterified - radiation effects
Free fatty acid
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
Microwave
Microwaves
Oleic Acid - chemistry
Oleic Acid - radiation effects
Soybean Oil - chemistry
Soybean Oil - radiation effects
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Summary:This paper shows energy-efficiency of microwave-accelerated esterification of free fatty acid with a heterogeneous catalyst by net microwave power measurement. In the reaction condition of 5wt% sulfated zirconia and 1:20M ratio of oil to methanol at 60°C and atmospheric pressure, more than 90% conversion of the esterification was achieved in 20min by microwave heating, while it took about 130min by conventional heating. Electric energy consumption for the microwave heating in this accelerated esterification was only 67% of estimated minimum heat energy demand because of significantly reduced reaction time.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2010.11.067