关键词: 尿素包合法, 费托合成高温油相产品, 正构烃, 多相反应, 分离, 优化

Abstract: The simulated high temperature oil phase products of Fischer-Tropsch synthesis were taken as raw materials and the urea inclusion method was used to separate n-hydrocarbons from the raw materials. The effects of activators，inclusion reaction conditions and unpacked reaction conditions on n-hydrocarbons separation were studied. Orthogonal experimental study showed that ethanol was a suitable activator and the optimal reaction conditions for inclusion were：reaction temperature 5 ℃，reaction time 1h，based on 1g raw materials，amount of urea 2.75g，amount of ethano 3.5mL，amount of water 1.125mL. Under the optimal reaction conditions，recovery rate of 1-decene was 87.75% and that of n-decane was 89.90%. The unpacked reaction results of inclusion complex illustrated that presence of water was conducive to the unpacked reaction and recovery rate of n-hydrocarbons was higher than without water. When water consumption reached 100 mL，the unpacked reaction of inclusion complex was completed.

Key words: urea inclusion method, high temperature products of Fischer-Tropsch synthesis, n-hydrocarbon, multiphase reaction, separation, optimization