中文摘要：

浪费食用油(WCO ) 正在成为最有希望的其他的化工物品在中国由于它的低费用生产 biodiesel。在这研究， NKC-9 离子交换树脂和 H 贝它沸石在 WCO 酯化作用过程作为异构的催化剂被选择，他们的酯化作用特征被直角的实验比较。NKC-9 树脂显示出更高的活动并且在一样的反应条件下面与 H 贝它沸石相比完成了更高最后的变换。可重用性实验证明那 NKC-9 树脂仍然在 5 跑以后展出了高活动。到油，反应时间，反应温度和催化剂剂量的酒精的鼹鼠比率的效果被 multifactor 调查直角的分析。内容也是的免费的丰满的酸(船边交货) 的影响调查了，并且当船边交货内容是 6.3wt% 时，结果证明酯化作用率能象 98.4% 一样高。

英文摘要：

Waste cooking oil （WCO） is becoming the most promising alternative feedstock to produce biodiesel due to its low cost in China. In this study, NKC-9 ion-exchange resin and H-beta zeolite were selected as heterogeneous catalysts in the WCO esterification process and their esterification characteristics were compared by orthogonal ex- periments. NKC-9 resin showed higher activity and achieved a higher final conversion compared with H-beta zeolite under the same reaction conditions. Reusability experiments showed that NKC-9 resin still exhibited high activity after 5 runs. The effects of the mole ratio of alcohol to oil, reaction time, reaction temperature and the catalyst dose were investigated by multifactor orthogonal analysis. The influence of the free fatty acid （FFA） content was also investi- gated, and the result showed that the esterification rate could be as high as 98.4% when the FFA content was 6.3wt%.