摘要
CO_2是造成温室效应的主要气体,作为碳基能源使用的末端形态,CO_2也是种重要的基础碳源。因此,将CO_2转化为能源产品可以快速实现碳的循环,对环境与能源领域意义重大。介绍了CO_2的排放、回收以及资源化利用现状,从催化剂体系、反应机理、合成工艺以及工业化现状等方面系统地介绍了CO_2甲烷化的发展。针对H2供给对CO_2甲烷化应用的限制,分析了电解水制氢再与CO_2进行甲烷化反应的电制气(Pt G)技术的发展现状、工艺路线及其经济性,讨论了该技术在我国应用的可行性。提出随着CO_2捕集与新能源相关技术的发展,Pt G技术会更加成熟,将有望成为未来CO_2资源化利用的重要形式。
Carbon dioxide(CO2)is not only the main greenhouse gas,but one of the most important carbon source in the world as the used form of carbon-based energy.Therefore,as an anthropogenic chemical carbon cycle,converting CO2 into energy products will be of great significance for environment and energy.CO2 emission,recovery and resource utilization were reviewed,as well as development of CO2 methanation in terms of catalyst system,reaction mechanisms,synthesis process,industrial status.In addition,the development,route and economy of the Power-to-Gas(PtG)technology were introduced and analyzed considering the restrictions of H2 supply in the industrial application of CO2 methanation.And the PtG technology will become more mature with the development of CO2 capture and CO2 methanation technics.Thus,it is proposed that PtG technology will become as a very important form of future CO2 utilization.
作者
刘树森
朱继宇
张志磊
任军
Liu Shusen;Zhu Jiyu;Zhang Zhilei;Ren Jun(Lignite Fly Ash Institute of Engineering&Technology,Xilingol Vocational Collage,Xilinhot 026000, Inner Mongolia,China;Co-construction Key Laboratory of Coal Science and Technology by Ministry of Education and Shanxi Province,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China)
出处
《工业催化》
CAS
2018年第1期1-12,共12页
Industrial Catalysis
基金
国家自然科学基金项目(21376159,21606159)
关键词
三废处理与综合利用
二氧化碳转化
二氧化碳捕集
甲烷化
电制气技术
碳循环
three waste treatment and comprehensive utilization
carbon dioxide conversion
carbon dioxide capture
methanation
power-to-gas
carbon cycle
