膨胀机制冷天然气凝液回收流程模拟

The Simulation of the Natural Gas Liquid Recovery Process by the Expander Refrigeration

关键词:  天然气 凝液回收 膨胀机 制冷 流程模拟

Key words:  natural gas, condensate recovery, expander, refrigeration, process simulation

摘要:

本文分别以PR和LKP方程为相平衡、焓熵计算模型，建立了汽液平衡分离、多股换热器、节流阀、膨胀机、液烃分馏塔等工艺设备的数学模型，编制了相应的计算程序。在此基础上，根据膨胀机制冷的天然气凝液回收流程特点，采用序贯模块方法，用直接迭代法对工艺流程进行了模拟计算，并给出设计实例和计算结果。

Abstract:

When the differential pressure between the raw gas and product gas transportation out can be used, or the raw gas is rather lean, because expander refrigeration technics process is simple and function energy - exhaust is rather low, abroad applied in the