蓖麻油催化裂解制十一烯酸研究

Study on Pyrolyzing Castor Oil Catalytically in Preparing Undecenoic Acid

采用减压催化的方式 ,对蓖麻油直接裂解制备十一烯酸的方法进行了研究。结果表明 :使用N型催化剂 ,在温度 40 0°C,压力 2 3.3k Pa,物料流量 70 0 g/ h的条件下 ,十一烯酸收率达 2 4 .6% ,庚醛 1 8.3%。该法降低了解裂温度 ,简化了工艺 ,节省了原料 ,且催化剂可反复再生使用。

Castor oil was catalytically pyrolyzed for preparing undecenoic acid under reduced pressure. Results showed that the yield of undecenoic acid was up to 24.6% and that of heptaldehyde to 18.3% in presence of N catalyst and at 400°C and 23.3 kPa pressure, 700 g/h flow rate. In the process, pyrolytic temperature was reduced, the process simplified and the material economized. Moreover, the catalyst can be regenerated.