生物质壳聚糖基复合材料在CO_(2)分离捕获和资源化利用中的应用

Application of biomass chitosan-based composites for CO_(2) separation and capture and resource utilization

二氧化碳过度排放导致的全球变暖、海平面上升和气候恶化等生态环境问题日益显著,亟需探寻新型处理技术和生物质材料来缓解这一问题。本文综述了生物质壳聚糖在二氧化碳分离、捕获和资源化利用领域的研究进展;详细阐述了壳聚糖膜对CO_(2)的分离机制及提高膜分离性能的方法;归纳了增强壳聚糖基活性炭对CO_(2)捕获性能的方法;对利用壳聚糖基催化剂将CO_(2)转化为碳酸酯、甲烷和烯烃等增值品的相关研究进行了总结。最后,对生物质壳聚糖在未来助力“双碳”战略目标实现过程中的发展趋势进行了展望。

There is an urgent need to explore new treatment technologies and biomass materials to mitigate the growing ecological problems of global warming,sea level rise and climate degradation caused by excessive carbon dioxide emissions.This paper reviews the research progress of biomass chitosan in CO_(2) separation,capture and resource utilization;details the mechanism of CO_(2) separation by chitosan membranes and methods to improve membrane separation performance;summarizes the methods to enhance the CO_(2) capture performance of chitosanbased activated carbon;and summarizes the research on the conversion of CO_(2) into value-added products such as carbonate,methane and olefin by chitosan-based catalysts.Finally,the future development trend of biomass chitosan in the process of helping to achieve the"double carbon"strategic goal is presented.