In this paper, according to the problem of C_3 recovery rate is not high in a NGL recovery plant with turbo-expander, the main unit process models were built up, and the process simulation calculation is taken .

• 本文针对某使用透平膨胀致冷工艺的轻烃回收装置在实际生产中存在丙烷收率偏低的具体问题,建立了主要单元过程的工艺计算模型并对工艺过程进行模拟计算。