毛棉籽油制备生物柴油的前处理工艺

Pretreatment of Biodiesel Production from Raw Cottonseed Oil

以毛棉籽油为原料,探讨了制取生物柴油过程中水洗法脱磷除胶前处理的最佳工艺参数。通过正交试验得出影响水洗过程毛棉籽油中胶溶杂质去除率的因素主次顺序为:水洗次数>水化时间>水化温度>搅拌速度>加水量。最佳工艺参数:水化温度60℃,搅拌速度150 r/min,水化时间15 min,加水量4%,水洗次数为3。磷脂的去除率达68.23%。

The best conditions of cleaning phospholipid from cottonseed oil by water washing during preparation of biodiesel were investigated in details, in which orthogonal experiment method was employed. The results showed that the order of the factors is temperature, rotating rate, rotating time, the ratio of cottonseed oil and water, and the washing times. The optimum parameters were.temperate was 60 ℃,rotating rate was 150 r/min, rotating time for washing was 15 minutes, the volume ratio of cotton seed oil and water was 25 ： 1, the washing times was 3. Under the best conditions, the rate of removal phosphatides from raw cotton oil was 68. 23%.