太阳能辅助碳捕集：适用技术、性能比较和发展趋势

摘要

Solar-assisted carbon capture,which integrates three technologies of energy efficient, renewable energy utilization,CO2 capture together,is a reasonable solution to mitigate the challenge of climate change. The research status of solar-assisted carbon capture of post-combustion, pre-combustion and oxygen-combustion is summarized in terms of separation method and technology, etc. Then separation processes of different technologies are evaluated using ideal minimum separation work and thermodynamic separation efficiency. Finally,several potential directions of solar-assisted carbon capture in the future may be the basic theory of energy efficiency,highly-efficient integration and cascade utilization. The separation model would not fit to the second generation technologies and the framework of carbon capture would be expanded. Solar-assisted links would be added as well from carbon capture to transportation and storage. Cascade utilization of solar-assisted carbon capture would become more flexible.%太阳能辅助碳捕集系统集合了提高能源转换效率、使用可再生能源和二氧化碳捕集与封存3种应对气候变化挑战的技术，是跨学科研究中的新兴领域。本文综述了燃烧后、燃烧前和富氧燃烧碳捕集技术中太阳能辅助碳捕集的研究现状，并从分离方式、分离技术和太阳能辅助方式等方面进行了深入分析。其后从分离理想最小功和分离热力学效率对不同二氧化碳的分离技术进行了性能评价。最后对太阳能辅助碳捕集技术的发展趋势进行了梳理，分离模型方法不再适合光催化等第二代碳捕集技术，碳捕集理论研究的框架有待拓展；太阳能辅助环节将从碳捕集过程逐步扩展到运输和储存过程；太阳能辅助形式中的梯级利用更加灵活多样。该新兴技术在能效基础理论、太阳能梯级利用和高效集成三方面亟待突破。