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工程科学与技术:2022,54(1):145-156
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CO2的能源化利用技术进展与展望
(1.四川大学 新能源与低碳技术研究院,四川 成都 610065;2.深圳大学 深地科学与绿色能源研究院,广东 深圳 518060;3.四川大学 化学工程学院,四川 成都 610065)
Progress and Prospect of CO2 Energy Utilization Technology
(1.Inst. of New Energy and Low-Carbon Technol., Sichuan Univ., Chengdu 610065, China;2.Inst. of Deep Earth Sci. and Green Energy, Shenzhen Univ., Shenzhen 518060, China;3.School of Chemical Eng., Sichuan Univ., Chengdu 610065, China)
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投稿时间:2021-07-13    修订日期:2021-10-14
中文摘要: 在当前碳中和背景下,人类向着“少碳、用碳与无碳”的CO2减排之路前行。CO2捕集、利用与封存技术(CCUS)作为最直接的“碳中和”技术策略,为促进大气CO2净减排发挥了重要作用。然而,当前CCUS技术普遍面临着低效率、高能耗、高成本的技术难题,限制了该类技术的大规模应用与推广。近年来,随着可再生电能的不断发展,CO2减排与能源体系耦合的电池技术、储能技术应运而生,这类CO2能源化利用技术有望解决当前CCUS技术体系高能耗、高成本的技术难题,同时,有利于新能源的周期性消纳。然而,在这类CO2能源化利用技术中,主要是将CO2作为一种能源介质,对外输出的能量并非来自CO2本身;但是,CO2转变为碳酸盐的过程是化学位降低的反应过程,意味着CO2本身也是一种潜在的能源。作者利用这一热力学有利的反应,成功开发了利用CO2本身蕴含的能量进行深度发电的CO2矿化发电技术,并将CO2矿化电池的最大功率密度提升至了96.75 W/m2
中文关键词: 碳中和  CO2能源化利用  电池
Abstract:Under the current background of carbon neutrality, mankind is moving forward on the road of “less carbon, use carbon and no carbon” to reduce CO2 emission. As the most effective “carbon neutrality” technology strategy, CO2 capture, utilization and storage technology (CCUS) has played an important role in promoting the net reduction of atmospheric CO2. However, low efficiency and high energy consumption are issues preventing current CCUS technology from industrial large-scale application. In recent years, with the continuous development of renewable electricity, battery and energy storage technologies that couple CO2 emission reduction and energy system have emerged. The CO2 energy utilization technology offers a solution for efficient CO2 emission reduction technology which is conductive to the periodic consumption of new energy. However, CO2 is mainly used as an energy medium in this type of CO2 energy utilization technology, and the external energy output does not stem from CO2 itself. It is worth noting that the process of converting CO2 to carbonate is a reaction with lowering the chemical potential, which means that CO2 itself is also a potential energy source. The author of this article uses this thermodynamically favorable reaction to successfully develop CO2 mineralized power generation technology which utilizes the energy contained in CO2 itself for deep power generation. And in recent studies, the maximum power density of the CO2 mineralization cell has been increased to 96.75 W/m2.
文章编号:202100680     中图分类号:    文献标志码:
基金项目:国家自然科学基金项目(2020YFH0012)
作者简介:第一作者:谢和平(1956-),男,中国工程院院士,博士.研究方向:新能源技术.E-mail:Xiehp@scu.edu.cn
引用文本:
谢和平,刘涛,吴一凡,王云鹏,陈彬,廖海龙.CO2的能源化利用技术进展与展望[J].工程科学与技术,2022,54(1):145-156.
XIE Heping,LIU Tao,WU Yifan,WANG Yunpeng,CHEN Bin,LIAO Hailong.Progress and Prospect of CO2 Energy Utilization Technology[J].Advanced Engineering Sciences,2022,54(1):145-156.