超临界CO2状态下小麦胚芽油加氢反应的研究

Hydrogenation of wheat germ oil in supercritical CO_2

对小麦胚芽油在超临界CO2状态下的氢化工艺进行了研究。实验采用Pd/C作催化剂,通过单因素与正交实验,确定了最佳工艺条件:催化剂用量0.08%,反应时间40 min,温度80℃,总压力8 MPa,搅拌速度200 r/min。在此条件下,所得氢化小麦胚芽油的碘值(I)为72.6 g/100 g,VE含量为2.453 g/kg。

In the supercritical CO2 condition, the hydrogenation of the pressed wheat germ oil with Pd/C as a catalyst was studied. The optimum conditions were determined through the single factor and orthogonal tests as follows：amount of catalyst 0.08%, reaction time 40 min, reaction temperature 80 ~C, total pressure 8 MPa, stirring speed 200 r/min. Under the optimum conditions, the iodine value of wheat germ oil hydrogenated was 72.6 g/100 g,the content of VE was 2. 453 g/kg.