TY - JOUR
T1 - An enzymatic/acid-catalyzed hybrid process for biodiesel production from soybean oil
AU - Ting, Wei Jia
AU - Huang, Chun Ming
AU - Giridhar, Nair
AU - Wu, Wen Teng
N1 - Funding Information:
We gratefully acknowledge the financial support from the National Science Council of Taiwan (NSC 95-2221-E-006-303). The authors also wish to thank Chinese Petroleum Corporation for kindly assisting in testing the biodiesel.
PY - 2008/5
Y1 - 2008/5
N2 - The present study is aimed at developing an enzymatic/acid-catalyzed hybrid process for biodiesel production using soybean oil as feedstock. In the enzymatic hydrolysis, 88% of the oil taken initially was hydrolyzed by binary immobilized lipase after 5 h under optimal conditions. The hydrolysate was further used in acid-catalyzed esterification for biodiesel production and the effects of temperature, catalyst concentration, feedstock to methanol molar ratio, and reaction time on biodiesel conversion were investigated. By using a feedstock to methanol molar ratio of 1: 15 and a sulfuric acid concentration of 2.5%, a biodiesel conversion of 99% was obtained after 12 h of reaction at 50 °C. The biodiesel produced by this process met the American Society for Testing and Materials (ASTM) standard. This hybrid process may open a way for biodiesel production using unrefined and used oil as feedstock.
AB - The present study is aimed at developing an enzymatic/acid-catalyzed hybrid process for biodiesel production using soybean oil as feedstock. In the enzymatic hydrolysis, 88% of the oil taken initially was hydrolyzed by binary immobilized lipase after 5 h under optimal conditions. The hydrolysate was further used in acid-catalyzed esterification for biodiesel production and the effects of temperature, catalyst concentration, feedstock to methanol molar ratio, and reaction time on biodiesel conversion were investigated. By using a feedstock to methanol molar ratio of 1: 15 and a sulfuric acid concentration of 2.5%, a biodiesel conversion of 99% was obtained after 12 h of reaction at 50 °C. The biodiesel produced by this process met the American Society for Testing and Materials (ASTM) standard. This hybrid process may open a way for biodiesel production using unrefined and used oil as feedstock.
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U2 - 10.1016/j.jcice.2008.01.004
DO - 10.1016/j.jcice.2008.01.004
M3 - Article
AN - SCOPUS:57149120818
SN - 0368-1653
VL - 39
SP - 203
EP - 210
JO - Journal of the Chinese Institute of Chemical Engineers
JF - Journal of the Chinese Institute of Chemical Engineers
IS - 3
ER -