Premium
Ultrasonic hydrogenation of soybean oil
Author(s) -
Moulton K. J.,
Koritala S.,
Frankel E. N.
Publication year - 1983
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02702094
Subject(s) - linolenate , copper , catalysis , soybean oil , nickel , selectivity , materials science , sonication , chemistry , metallurgy , nuclear chemistry , inorganic chemistry , organic chemistry , fatty acid , chromatography , food science
The rate of hydrogenation of soybean oil with either copper chromite or nickel catalysts increased more than a hundredfold with the aid of ultrasonication. In a continuous reaction system, the selectivity with copper catalyst for linolenate reduction was somewhat lower when ultrasonic energy was applied than when not applied. With ultrasonic energy, 87% hydrogenation of linolenate in soybean oil was obtained in 9 sec at 115 psig H 2 with 1% copper chromite at 181 C and 77% linolenate hydrogenation with 0.025% nickel. Without ultrasonic energy, only 59% linolenate hydrogenation was obtained in 240 sec with copper chromite at 198 C and 500 psig H 2 and 68% linolenate hydrogenation in 480 sec with nickel at 200 C and 115 psig H 2 . This innovation may offer an important advantage in increasing the activity of commercial catalysts, particularly copper chromite, for fats and oil hydrogenation.