化工学报2025，Vol.76Issue(5)：2251-2261,11.DOI:10.11949/0438-1157.20240772
贫氦管输天然气提氦多元化产品耦合工艺优化设计
Optimal design of integration process for helium extraction from helium-poor pipeline natural gas with diversified products
摘要
Abstract
At present,there are some problems in the helium extraction process,such as excessive dependence on the helium-rich tail gas from liquefied natural gas production process,the introduction of new impurities by catalytic oxidation destructive dehydrogenation and high energy consumption.Therefore,a multi-stage membrane-electrochemical hydrogen pump-adsorption helium extraction integration process based on a wide range of resources for helium-poor pipeline natural gas was proposed to produce diversified products of He,H2,and CO2 by utilizing the pressure of the pipeline natural gas and a multi-technology gradient productization strategy of removing impurities and extracting helium,so as to realize the economic helium extraction from helium-poor pipeline natural gas.Aspen HYSYS software was used to simulate and optimize the helium extraction integration process for 1.00×105 m3/h helium-poor pipeline natural gas,and the effects of the recovery,membrane performance,and helium concentration on the process economy were investigated.The simulation results show that,at a typical pipeline natural gas pressure of 4.0 MPa and 0.04％(vol)He,the helium extraction integration process for helium-poor pipeline natural gas is more economical with the medium-permeable and medium-selective gas separation membrane,and the helium recovery rate is 50％—70％,the break-even price of helium is 115.5-123.2 CNY/m3,and the break-even price gradually decreases as the helium concentration increases,providing a technological route with great industrial prospects for the economic utilization of helium-poor resources.关键词
天然气/优化设计/膜/氦气/电化学氢泵/过程强化Key words
natural gas/optimal design/membranes/helium/electrochemical hydrogen pump/process intensification分类
化学化工引用本文复制引用
郭明钢,杨晓航,代岩,米盼盼,马世鑫,贺高红,肖武,崔福军..贫氦管输天然气提氦多元化产品耦合工艺优化设计[J].化工学报,2025,76(5):2251-2261,11.基金项目
国家自然科学基金项目(22141001) （22141001）
国家自然科学基金创新群体项目(22021005) （22021005）
营口市企业博士双创计划项目(YKSCJH2023-011) （YKSCJH2023-011）
