对甲苯磺酸催化高酸值油脂甲酯化的实验

Methyl esterification of high acid value oil catalyzed by p-toluene sulphonie acid

以价格低廉易得的非食用油脂为原料制备生物柴油是发展生物柴油产业的一大趋势,但这类油脂往往具有较高的酸值,影响了其作为生物柴油原料的开发和应用。以传统的浓硫酸为催化剂存在许多缺点,而以对甲苯磺酸为催化剂,采用循环气相酯化技术,催化高酸值油脂进行甲酯化反应,克服了多种缺点,取得了很好的酯化效果。

Using the easily available, cheap and unedible oils for biodiesel production is a trend in biodiesel production, but these materials can not be directly used for biodiesel production because of their high acid value. The ordinary technics of producing biodiesel with concentrated sulfuric acid as catalyst have many disadvantages. The technic of circulating gaseous esterification reaction catalyzed by p - toluene sulphonie acid can overcome these disadvantages and obtain good esterification results.