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Citation: Ai Hong-Tao, Huang Dao-Hui, Zhang Yu-Jun, Wang Shui-Xing. A Kinetic Model of the Hydrogenation of Oil and Fat[J]. Acta Physico-Chimica Sinica, ;1992, 8(06): 789-794. doi: 10.3866/PKU.WHXB19920614 shu

A Kinetic Model of the Hydrogenation of Oil and Fat

1.
Fat and Oil Laboratory of Fine chemical Engineering Zhengzhou Grain College, Zhengzhou 450052

Received Date: 16 October 1990
Available Online: 15 December 1992

A kinetic model of fat and oil hydrogenation is given in this paper. Hydrogen is adsorbed at the surface of catalyst M forming activated H.It reacts with linolenate, Linoleate and oleat respectively. Adopting Ridel-Langmuir's method, we established the kinetic equation.(4)—(11)
Using refined soybean oil, pure hydrogen, self-made catalyst, we carried out a series of hydrogenation experiments in a high pressure reactor (FDW-01), the fatty acid chromatographer (GC-9A). From the results, straght lines were obtained thus the model has been proved. The pseudofirst order reaction rate constant (k_iN_H) and fatty acid composition of the original oil can be obtained from the figures. All calculated results are coincident with the experimental data.
The allen's empirical formula can be obtained from the present kinetic equations. if k_i was replaced by Arrhenius formula and N_H replaced by eqs.8. If linolenate=0, the present equation will change into the Moharir's formula. If N_H=1, Eqs.(9)—(11) will change into semiempirical formula of Albright.
- Fat and oil hydrogenation; Activated H; Kinetic equation
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