摘要
采用磺酸类BrФnsted酸离子液体作为催化剂,研究了不同工艺条件下催化废油脂制备生物柴油的过程.以地沟油为原料,醇/油摩尔比12:1,催化剂用量为油质量的2%,在140℃下反应5h,产物中脂肪酸甲酯的含量达到86.8%.在同样的反应条件下,催化剂重复使用9次后其活性无明显变化.该催化剂对废油脂制备生物柴油具有较高的催化活性和良好的重复使用性能.
The preparation of biodiesel from waste oil and methanol catalyzed by a Bronsted acidic ionic liquid with an alkane sulfonic acid group as catalyst was studied under different reaction conditions. When the molar ratio of methanol to waste oil is 12 and the mass ratio of ionic liquid to oil is 0.02, 86.8% fatty acid methyl ester is obtained in the products after the reaction has taken place at 140℃ for 5 h. Under the same reaction conditions, the ionic liquid has no obvious change of catalytic activity after using 9 times. So the catalyst shows great reusability and good catalytic activity for preparation of biodiesel from waste oil.
出处
《过程工程学报》
EI
CAS
CSCD
北大核心
2007年第6期1144-1148,共5页
The Chinese Journal of Process Engineering
