In order to analyze the economic value of condensation method for light hydrocarbons recovering,according to light gas mixture from 14 kinds of gas measured during oil and gas loading in Changling Branch,SINOPEC,and the concentrations of its component,a model of three-stage condensation process for light hydrocarbons recovering was built for simulation.The three-stage compression refrigeration system takes R22,R404A and R508B as refrigerants,the refrigeration coefficient and energy consumption of refrigerat...