液态空气储能吸附剂物性调控及吸附床设计研究进展OA

Liquid air energy storage(LAES)represents a nascent,large-scale physical energy storage technology that offers high energy density,environmental benignity,and site-selection flexibility.LAES has gained significant attention as an effective approach for satisfying peak-shaving requirements in power systems.During system operation,high-boiling point impurities,such as atmospheric water vapor(H2O)and carbon dioxide(CO2),tend to undergo condensation,desublimation(frosting),or deposition within the system,thereby concurrently compromising operational efficiency and inducing flow-channel blockage and potential operational failures.Adsorptive separation presents a promising solution to these challenges,offering a favorable balance between operational simplicity and high purification efficiency.The performance of the adsorption bed,as a critical unit of the LAES pretreatment system,is fundamentally governed by the synergistic effect of the physicochemical properties of the adsorbent and the structural design of the bed.This paper presents reviews of recent advances in various adsorbent classes,including activated carbon,molecular sieves,metal-organic frameworks,zeolites,silica gel,and composite porous materials.The reviews also compare their specific surface areas,hydrophilicity,and low-temperature-adsorption capacity to assess the suitability of the materials for H2O and CO2 capture,as well as discuss methods for tuning and optimizing adsorbent properties.Subsequently,recent advancements in axial-and radial-flow adsorption beds are systematically explored,highlighting their structural,flow-and pressure-field,and adsorption-performance differences,as well as the corresponding structural optimization strategies.The findings provide theoretical guidance for optimizing adsorption processes in LAES systems.