薛振乾,谢祥,马浩铭,孙喆,张凯,陈掌星
XUE Zhenqian,XIE Xiang,MA Haoming,SUN Zhe,ZHANG Kai,CHEN Zhangxing

• 1:加拿大卡尔加里大学化学与石油工程系
• 2:信开环境投资有限公司
• 3:中国地质大学(武汉)资源学院
• 4:宁波东方理工大学(暂名)

摘要(Abstract)：

为了实现中国21世纪中叶达到碳中和，大规模应用CO_2捕获、利用和封存（CCUS）技术可以减少能源行业的温室气体排放。通过对国内外CCUS技术、项目的调研，得出了关于未来CCUS部署的3个见解，这些见解有助于能源行业实现转型。首先，碳源浓度较低导致碳捕集效率低，从而导致碳捕集的经济成本较高的问题是目前CCUS项目无法商业化的主要因素，在发展当前的碳捕集技术，提高捕集效率和降低捕集成本的同时也应大力研究空气捕集技术，尤其是在工艺设计和新型吸附材料研发方面，争取实现弯道超车；其次，CO_2在油气藏和咸水层的封存与利用应当作为CCUS技术研究的重点，逐步实现大规模推广，并在技术升级和体系完善的基础上推广CO_2增强地热、煤层气等其他耦合技术；最后，应当在当前国际上较成熟的碳政策的基础上研究适合中国的激励政策，建立有效的法律法规。论文总结了当前CCUS的关键挑战，并为未来的CCUS研究方向提供了指导方向。
Large-scale CO_2 capture, utilization, and storage(CCUS) can reduce greenhouse gas emissions to help China achieve carbon neutrality by the mid-21st century. A series of CO_2 sequestration projects are reviewed and 3 insights on future CCUS implementation are provided consequently. These insights can help the energy industry smoothly shift towards energy transition. First, the low CO_2 concentration from emitters results in a low capture efficiency, causing a high economic cost of carbon capture which is a dominating challenge to commercialize CCUS projects. As such, the development of existing CO_2 capture technologies shall aim to improve capture efficiency and reduce capture costs. In addition, the feasibility of direct air capture technology shall be further investigated, especially focusing on the configuration designs and the novel adsorption materials development to succeed in overtaking. Second, permanent CO_2 sequestration in depleted hydrocarbon reservoirs and saline aquifers should be examined in terms of underlying the feasibility of practical field applications, and coupling with other technologies such as CO_2-enhanced geothermal and enhanced coalbed methane recovery. Lastly, suitable incentive policies for China should be studied and effective laws and regulations should be established on the basis of current international mature carbon policies. This paper summarizes the key challenges of current CCUS and provides insights for future research directions.

关键词(KeyWords)： CCUS;碳中和;碳捕集;CO_2利用;CO_2地质封存;CO_2提高油气采收率
CCUS;carbon neutrality;carbon capture;CO_2 utilization;CO_2 geological storage;CO_2-enhanced oil recovery

Abstract:

Keywords:

基金项目(Foundation): 加拿大自然科学与工程研究委员会-Energi Simulation油藏模拟工业研究项目;; 阿尔伯塔省科技委员会iCore油藏模拟项目

作者(Author): 薛振乾,谢祥,马浩铭,孙喆,张凯,陈掌星
XUE Zhenqian,XIE Xiang,MA Haoming,SUN Zhe,ZHANG Kai,CHEN Zhangxing

DOI: 10.19597/J.ISSN.1000-3754.202306057

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