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    二氧化碳捕集与利用一体化技术研究进展

    Recent progress on integrated carbon dioxide capture and utilization technology

    • 摘要: 碳捕集与利用(CCU)技术在能源结构低碳化转型与碳净零排放中起着关键作用,但受制于冗长的工艺步骤和高企的能源资金投入难以推广实施。集成二氧化碳(CO2)捕集与利用(ICCU)为一体可通过原位催化转化的方式协同实现CO2升级和吸附剂再生,避免了传统CCU技术中高耗能的温压变换再生和气体压缩储运等中间步骤,显示出极具竞争力的工业应用前景。本文总结了ICCU领域国内外的最新研究进展,从与CO2捕集集成的反应出发,分析应用于ICCU过程的“捕集–催化”双功能材料的设计准则,探讨材料与碳捕集与催化转化性能的构效关系,解析原位催化转化的反应机理,以期为材料与过程的理性设计提供参考。结合非热催化转化技术,本文综述了前沿的研究进展,展望了其在ICCU领域的发展前景与方向。基于ICCU设计思路耦合其他高碳排过程,拓展了相关的应用场景,为相关过程创新提供了思路。本综述总结了ICCU系统及双功能材料体系的发展现状、前景与机遇,从材料到过程进行了综合的评论,为该领域未来的研究及工业化提供了重要参考。

       

      Abstract: Carbon capture and utilization (CCU) technologies play key roles in controlling carbon emission and net zero, but the deployment of which are restricted by the complex intermediate steps and high energy and capital investment. Integrated carbon dioxide capture and utilization (ICCU) can synergistically achieve CO2 upgrading and adsorbent regeneration through in-situ catalytic conversion, avoiding the energy-consuming intermediate steps such as temperature-pressure swing and CO2 compression, storage and transportation in conventional CCU technologies, exhibiting a highly competitive industrial application prospect. This review summarizes the updated research progress in the field of ICCU. Classified by the reaction integrated with CO2 capture, the design principle of “capture-catalysis” dual-functional materials (DFMs) are concluded, the structure-activity relationship between DFMs and carbon capture and catalytic conversion performance is discussed, and the reaction mechanism of in-situ catalytic conversion is comprehensively reviewed. Combined with non-thermal catalytic conversion technology, this paper reviews the frontier research progress and looks forward to its development prospects and directions in the field of ICCU. Based on the ICCU design coupled with other high-carbon emission processes, we expand the relevant application scenarios and provides ideas for related process innovation. This review summarizes the current status, prospects, and opportunities of ICCU systems and DFMs systems, and provides a comprehensive evaluation from materials to processes, providing an important reference for future research and industrialization of ICCU.

       

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