掺氢天然气的氢气分离提纯技术浅析  

A brief analysis of technologies for hydrogen separation and purification from hydrogen mixed natural gas

作　　者：刘其武[1] 高卓然[1] 胡亚琼[1] 曾悦 张蓝仪 张学军[1] 李庆勋[1] 肖海成[1] LIU Qiwu;GAO Zhuoran;HU Yaqiong;ZENG Yue;ZHANG Lanyi;ZHANG Xuejun;LI Qingxun;XIAO Haicheng(Petrochemical Research Institute of PetroChina,Beijing 102206,China;College of Chemical Engineering and Environment of China University of Petroleum,Beijing 102249,China)

机构地区：[1]中国石油天然气股份有限公司石油化工研究院,北京102206 [2]中国石油大学(北京)化学工程与环境学院,北京102249

出　　处：《应用化工》2024年第9期2211-2214,2220,共5页Applied Chemical Industry

基　　金：国家重点研发计划项目(2022YFB4000050)。

摘　　要：针对掺氢天然气的氢气分离提纯技术,重点调研了变压吸附、膜分离及电化学氢分离技术的各自特点,提出了应用于掺氢天然气的氢气分离提纯技术方案:具有占地和成本优势的快速变压吸附提纯技术,适宜处理小规模掺氢天然气,在氢能产业发展近中期阶段可以成为研究重点;碳分子筛膜分离技术具有分离成本低和产品氢纯度高的优势,针对氢能产业发展远期阶段的大规模应用开展布局研究具有重要意义;掺氢天然气在分离提纯前的预处理,需重点关注低碳烃和硫的脱除,应分别考虑对后续工艺稳定运行的影响和能耗大小;分离提纯后的非氢气体回注管网,应重点关注气源管线的压力和避免非氢气体压缩以降低氢气分离提纯成本。The characteristics of pressure swing adsorption,membrane separation and electrochemical hydrogen separation technology were mainly investigated,and solutions specially for hydrogen mixed natural gas were proposed:rapid pressure swing adsorption technology with smaller land occupation and lower cost,which is suitable for handling small-scale gas,can be mainly studied in the short and medium term of hydrogen energy industry;carbon molecular sieve membrane technology with the characteristics of low cost and high purity hydrogen,which will probably play a significant role in the long term,can be layout researched;the pretreatment of hydrogen mixed natural gas should focus on the removal of light hydrocarbon and sulfur,the impact on the stable operation of subsequent processes and the magnitude of energy consumption should be considered separately;the non hydrogen gas reinjection pipeline network after separation and purification should focus on the pressure of the gas source and avoid non hydrogen gas compression to reduce the cost of hydrogen separation and purification.

关 键 词：掺氢天然气 氢气 变压吸附 碳分子筛膜 

分 类 号：TQ116.2[化学工程—无机化工]