Soybean oil has been partially hydrogenated in the presence of a synthesize
d nickel catalyst, in an industrial reactor, under the standard industrial
working conditions. The GC measurements of fatty acids in the investigated
oil and hydrogenated products have been performed. The total trans isomers
content has been determined by the LR spectroscopy.
The model is established, which could be useful for the characterization of
hydrogenation and isomerization reactions of poly-unsaturated acids. Itera
tion procedure, incorporating numerical simulation in each step is used to
calculate rate constants of the proposed model from the comparison of the e
xperimental and calculated kinetic runs. By the simultaneous treatment of t
he kinetic runs for the fatty acids composition and trans-isomer content, t
he 12 rate constants of individual hydrogenation and isomerization reaction
steps are obtained. (C) 2000 Elsevier Science B.V. All rights reserved.