化学链节能与利用技术综述：CO2捕集与能量梯级利用,Journal of Environmental Chemical Engineering

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化学链节能与利用技术综述：CO2捕集与能量梯级利用
Journal of Environmental Chemical Engineering ( IF 7.4 ) Pub Date : 2024-03-27 , DOI: 10.1016/j.jece.2024.112602
Jinbiao Yan , Sha Wang , Bin Hu , Huarong Zhang , Lipei Qiu , Weijun Liu , Yun Guo , Jun Shen , Bin Chen , Xiang Ge , Cong Shi

化学循环燃烧 (CLC) 是一种很有前景的 CO 捕集技术，预计可实现 100% 的捕集效率，同时能耗较低。 CLC的原理是利用氧载体作为介质在两个反应器之间输送氧气，旨在避免燃烧废气中的氮气。本文讨论了化学循环的进展，重点关注载氧体、反应器、耦合系统以及固体燃料 CLC 概念的其他应用。高性能载氧体和合适反应器的开发和设计是CLC技术发展的关键因素。扩大 CLC 工艺的主要挑战是开发具有最佳性能的合适 OC，包括高输氧能力、反应性和稳定性。最近，中试工厂连续运行了相当多的时间，这为进一步开发该工艺实现商业化注入了信心。固体燃料的使用势头强劲，液体燃料的发展还需进一步关注。基于化学循环技术的多联产应用集成系统同时实现化学能的高效转化和梯级利用和CO分离。文章还描述了化学链技术未来发展的前景及其工业部署的可行性。

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Review of chemical looping technology for energy conservation and utilization: CO2 capture and energy cascade utilization

Chemical looping combustion (CLC) is a promising CO capture technology, which expected to achieve 100% capture efficiency with a low energy penalty. The principle of CLC is utilizing an oxygen carrier as a medium for transporting oxygen between two reactors, aiming to avoid nitrogen in combustion exhaust. This article discusses the advances in chemical looping with a focus on oxygen carriers, reactors, coupling systems, and other applications of CLC concept for solid fuels. The development and design of high performance oxygen carriers and suitable reactors are key factors in the development of CLC technology. The main challenge in scaling up the CLC process is the development of appropriate OCs with optimal properties, including high transport oxygen capacity, reactivity, and stability. Recently, a fair number of hours of continuous operation in pilot plants have instilled the confidence required in further development of this process towards commercialization. The use of solid fuels is gaining momentum, and the liquid fuels need further attention for its development. The integrated systems based on chemical looping technology for poly-generation applications simultaneously achieve the efficient conversion and cascade utilization of chemical energy and CO separation. The article also describes the prospects of the future development in the chemical looping technology, and its viability for industrial deployment.

更新日期：2024-03-27

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