设计了一种用于酯交换制备生物柴油的新型气升式反应装置。通过理论分析和试验,确定了反应器降液管高径比值(H/D)为10.70,分布器孔径在4～5mm之间。与传统机械搅拌式反应器相比较,采用气升式反应器制备脂肪酸甲酯转化率提高了8.5%,反应时间缩短0.5h,提高了原料转化率,降低了生产成本。 A new type of gas-lift reactor for the transesterification of biodiesel was designed. Through theoretical analysis and experiment, the height ratio of downcomer (H / D) of the reactor is 10.70 and the diameter of distributor is between 4 ~ 5mm. Compared with the traditional mechanical agitated reactor, the conversion of the fatty acid methyl ester was increased by 8.5% and the reaction time was shortened by 0.5h with the airlift reactor, which improved the conversion of raw materials and reduced the production cost.