二氧化碳甲烷化技术进展与应用分析  

Research progress and application analysis of CO_(2)methanation technology

作　　者：吕长剑 王娟 Lv Changjian;Wang Juan(CNOOC Petrochemical Engineering Co.,Ltd.,Qingdao,Shandong 266101)

机构地区：[1]中海油石化工程有限公司,山东省青岛市266101

出　　处：《炼油技术与工程》2024年第4期6-10,共5页Petroleum Refinery Engineering

摘　　要：碳捕捉技术已经成为减少温室气体排放、实现可持续发展的主要措施,但捕捉的CO_(2)缺乏商业价值,使碳捕捉技术的普及面临许多挑战。电转气技术利用CO_(2)甲烷化反应,使用捕捉的CO_(2)和绿氢技术生产的H_(2)制备CH_(4),可以减少CO_(2)排放,具有大规模储运成本低、储能周期长的特点,相比于其他CO_(2)利用技术优势明显,有望成为我国解决碳排放和可再生能源弃电的重要技术。目前,我国缺少对甲烷化反应的相关研究和示范项目。文中分析了国际上甲烷化反应的研究现状和进展,包括反应热力学、催化剂研究、电转气示范项目等,以期对我国电转气技术的应用进行启发。CCUS(carbon capture,utilization and storage)has been one of the primary measures worldwide to reduce carbon dioxide emissions,achieving sustainable development.However,the captured carbon dioxide(CO_(2))at present is lacking commercial value,making the popularization of CCUS face many challenges.Power-to-gas technology utilizes CO_(2)methanation reaction,using H_(2)produced by captured CO_(2)and green hydrogen technology to produce CH_(4),which can reduce CO_(2)emissions.It has the characteristics of low large-scale storage and transportation cost and long energy storage cycle.Compared with other CO_(2)utilization technologies,it has obvious advantages and is expected to become an important technology for solving carbon emissions and renewable energy curtailment in China.At present,China lacks sufficient attention to methanation reaction and lacks relevant research and demonstration projects.The article analyzes the current research status and progress of methanation reaction internationally,including reaction thermodynamics,catalyst research,and demonstration projects of power-to-gas,in order to inspire the application of power-to-gas technology in China.

关 键 词：二氧化碳 甲烷化 电转气 碳捕捉 储能 氢原料 电解水 

分 类 号：X701[环境科学与工程—环境工程]