冷凝法油气回收工艺的能耗分析

Energy consumption analysis of condensation refueling gas recovery technique

汽油等油品在储运过程中会有部分轻烃组分挥发进入大气,与空气混合成为油气。这部分油气在储运过程中难免会产生环境污染、能源浪费等问题,利用复叠制冷循环制取低温来冷凝油气中的轻烃组分,实现油气回收、节能减排已成为业内研究的热点课题之一。冷凝法油气回收装置的能耗是研究者普遍关心的问题,本文提出了一种冷凝法油气回收系统,计算了温度变化时冷凝负荷的变化,从理论上分析了机组能耗随环境温度变化的规律。并指出了降低机组能耗的关键。

Light hydrocarbon components of petroleum products such as gasoline evaporate into atmosphere in the process of stockpiling and transportation, which mix with air as components of refueling gas. The low temperature condensation method of refueling gas recovery, which utilizes cascade cycle technique, is becoming the research focus. The power consumption of the condensation refueling gas recovery equipment is concerned by researchers and manufacturers. A condensation refueling gas recovery system was presented in this paper. The variation of power consumption and heat load of condenser with the change of ambient air temperature was calculated and the variation relationship between them was analyzed theoretically. The crux of energy consumption reduction was indicated.