双循环天然气液化流程混合制冷剂配比优化模拟研究  

Simulation and Optimization of Mixed Refrigerant Proportion in DMR

作　　者：高琳[1] 文博 Lin Gao;Bo Wen(School of Mechanical Engineering,Xi'an Shiyou University,Xi'an 710065;Shanyi Group Co.,LTD,Changsha,Changsha 410000)

机构地区：[1]西安石油大学机械工程学院,陕西西安710065 [2]三一集团有限公司,湖南长沙410000

出　　处：《石化技术》2021年第11期99-100,共2页Petrochemical Industry Technology

摘　　要：基于HYSYS平台,本文对DMR混合制冷剂天然气液化流程进行模拟优化。整个过程中,保持制冷剂压力不变,以预冷剂中的C_(2)H_(4)、C_(3)H_(8)和i-C_(5)H_(12)的摩尔分数、深冷剂中的CH_(4)、C_(2)H_(4)、C_(3)H_(8)和N_(2)的摩尔分数为优化变量,对整个工艺流程进行优化模拟并解算出流程的最低功耗。Based on HYSYS,the process of DMR was numerically simulated,and optimized with the minimum specific power consumption.Keeping the pressure of precooling agent high pressure,precooling agent low pressure,cryogenic agent high pressure and cryogenic agent low pressure unchanged;Taking the mole fractions of C_(2)H_(4),C_(3)H_(8) and i-C_(5)H_(12) in precooling agent and the mole fractions of CH_(4),C_(2)H_(4),C_(3)H_(8) and N_(2) in cryocooling agent as decision variables.And the lowest power consumption of the process was simulated during the process.

关 键 词：DMR 天然气液化 优化 

分 类 号：TE646[石油与天然气工程—油气加工工程]