结合以前的利用管网压力能制取LNG的流程,设计利用管网压力能制取液化甲烷气工艺流程。将液化率和重沸器的热负荷作为目标函数,并从气质条件、预处理气进料压力、LMG的存储压力、分流器的分流比、脱甲烷塔的操作压力5个方面来分析对目标函数的影响,最后得到相关结论。 Combined with the previous process of utilizing LNG pressure to produce LNG, the design process of liquefied methane gas can be designed by using network pressure. The liquefaction rate and the heat load of the reboiler were taken as the objective function and analyzed from the five aspects of the temperament condition, the pretreatment gas feed pressure, the storage pressure of LMG, the splitter splitter ratio and the demethanizer operating pressure Function, finally get the relevant conclusion.