摘要
使用PR模型对三级冷凝油气回收过程进行了模拟,考察了各级冷凝温度对油气回收过程的影响。研究发现:当预冷温度在-30~20℃之间、二级冷凝温度在-80~0℃之间时,预冷温度和二级冷凝温度对油气回收率几无影响;三级冷凝温度越低,油气回收率越高;系统总能耗随着预冷温度和二级冷凝温度的增加先降低后增加,随着三级冷凝温度的下降而增加。综合考虑油气回收率和系统总能耗,最佳预冷温度、二级及三级冷凝温度分别设定为5,-35及-75℃。
PR model was used to simulate the gasoline recovery process with three-stage condensation, and the effect of condensation temperature at all stages on gasoline recovery process was investigated. The results showed that the precooling temperature between -30 and 20 ℃ and the second stage condensation temperature between -80 and 0 ℃ had little effect on the recovery of gasoline, but lower third stage condensation temperatures brought to higher recovery of gasoline. The total energy consumption of the system decreased first and then increased with the increase of the precooling temperature and the second stage condensation temperature, while it increases with decreases of the third condensation temperature. Taking into account the recovery of gasoline and the total energy consumption of the system comprehensively,the optimal precooling temperature, the second stage and the third stage condensation temperatures are respectively set as 5,-35 and -75 ℃.
作者
毕锦斌
赵精彩
BI Jinbin;ZHAO Jingcai
出处
《上海化工》
CAS
2018年第6期27-30,共4页
Shanghai Chemical Industry
关键词
冷凝
油气回收
模拟
Condensation
Gasoline recovery
Simulation
