油脂加氢催化剂 Cu-Ni-Ru 和进口催化性能比较的研究

摘要

In the same hydrogenation conditions, the paper researched the hydrogenation performance of the imported catalyst 9910, 2021 and Cu-Ni-Ru at 160 ℃, 180 ℃, 200 ℃. The results showed that: Three catalysts’ order of activity on hydrogenated soybean oil in each temperature was Cu-Ni-Ru>9910>2021. Three catalyst’s iodine value and refractive index increased with increasing temperature. When catalyst Cu-Ni-Ru, 9910 and 2021 were hydrogenated at three temperatures, C18:1 (oleic acid) of trans fatty acids was the lowest at 160 ℃, C18:2 (linoleic acid) of trans-fatty acids was the lowest at 180 ℃. This showed that low temperature was conducive to the reduction of trans- fatty acids; When catalysts Cu-Ni-Ru、9910 and 2021 were hydrogenated at the same temperature conditions, more than 9910 and 2021 catalyst can reduce the acid content of trans fatty acids, and have higher selectivity.%　　文章在相同的氢化条件下，研究了进口催化剂9910、2021和 Cu-Ni-Ru 分别在160℃，180℃，200℃下的氢化性能。结果表明：三种催化剂在每一温度下对大豆油氢化的活性大小顺序为 Cu-Ni-Ru>9910>2021；三种催化剂的碘值和折光指数都随温度的升高而增加。Cu-Ni-Ru、9910和2021三种催化剂均在三种温度下氢化时，C18∶1(油酸)反式脂肪酸在160℃下含量最低，C18∶2(亚油酸)反式脂肪酸在180℃下含量最低。说明低温有利于反式脂肪酸的降低；Cu-Ni-Ru、9910和2021在相同温度条件下氢化时，催化剂比 Cu-Ni-Ru 比9910和催化剂2021更能使反式脂肪酸酸含量降低，有更高的选择性。