小桐子油气相催化裂化制备生物基燃油的试验研究

Preparation of bio-based fuel by gas phase catalytic cracking of Jatropha curcas oil

以小桐子油为原料、HY分子筛为催化剂,在实验室自制小型固定床反应器中开展油脂气相催化裂化的研究,重点考察反应温度及质量空速对小桐子油气相催化裂化效果的影响。结果表明,在原料50 g、催化剂15 g时,气相催化裂化的最佳条件为:反应温度475℃,质量空速6. 99 h-1。在最佳条件下,小桐子油的转化率为54. 36%,液体产物的酸值(KOH)为14. 06 mg/g,液体产物成分多为芳香族化合物。

Gas phase catalytic cracking of Jatropha curcas oil catalyzed by HY zeolite in self- made mini fixed -bed reactor was investigated. The influences of reaction temperature and mass space velocity on the gas phase catalytic cracking effect of Jatropha curcas oil were studied. The results showed that under the conditions of material mass 50 g, catalyst dosage 15 g, reaction temperature 475℃ and mass space velocity 6.99 h^-1, the conversion rate of Jatropha curcas oil was 54.36%, and the acid value of the liquid products was 14.06 mgKOH/g. Most of the liquid product components were aromatic compounds.