摘要
为降低天然气液化中丙烷预冷混合冷剂液化工艺(C3/MRC)的能耗,采用Aspen HYSYS软件建立了优化计算模型。结合KBO法和优化器中的Box算法,以系统最小能耗为目标函数,换热器最小换热温差3℃为约束条件,工艺参数和制冷剂配比为决策变量,对C3/MRC流程进行了优化模拟。结果显示,优化后单位质量天然气的液化能耗为351.49 kW·h/t,与国外经典的C3/MRC液化流程相比,能耗显著降低。
In order to reduce the energy consumption of propane-mixed refrigerant cycle process(C3/MRC)in the natural gas liquefaction,the optimization calculation model of C3/MRC was established by using Aspen HYSYS software.Combining the KBO method and the Box algorithm in the optimizer,with the minimum energy consumption as the objective function,the minimum temperature difference of the heat exchanger(3℃)as the constraint condition,and the process parameters and refrigerant ratio as decision variables,the C3/MRC process was optimized and simulated.The results show that the liquefaction energy consumption per unit mass of natural gas after optimization is 351.49 kW·h/t,which is significantly lower than the foreign classical C3/MRC liquefaction process reported in the literature.
作者
肖荣鸽
靳帅帅
王栋
庄琦
鱼红平
XIAO Rong-ge;JIN Shuai-shuai;WANG Dong;ZHUANG Qi;YU Hong-ping(Shaanxi Key Laboratory of Advanced Stimulation Technology for Oil&Gas Reservoirs,College of Petroleum Engineering,Xi'an Shiyou University,Xi'an 710065,Shaanxi,China;Oil Production Plant 2 of PetroChina Changqing Oilfield Company,Qingyang 745100,Gansu,China)
出处
《天然气化工—C1化学与化工》
CAS
北大核心
2021年第3期100-106,共7页
Natural Gas Chemical Industry
基金
西安市科技计划高校人才服务企业项目(2019217914GXRC015CG016-GXYD15.2)。