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

摘要： 以模拟的费托合成高温油相产品为原料，采用尿素包合法从原料中分离正构烃。考察了活化剂的种类、包合反应条件、解包合反应条件等对正构烃分离效果的影响。通过正交实验研究，结果表明：乙醇为较适宜的活化剂；较优反应条件为反应温度5℃，反应时间60min，以1g原料为基准，尿素用量2.75g，乙醇用量3.5mL，水用量1.125mL。在此包合反应条件下，得到1-癸烯的回收率为87.75%，正癸烷的回收率为89.90%。尿素包合物的解包合反应实验结果说明，水的存在有利于解包合反应的进行，得到正构烃回收率较高。用水量为100 mL时，尿素包合物的解包合反应基本完成。

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