Simulation of Internal Recycling of Adsorption Heat with Phase Change Materials

Abstract

Simulation of Internal Recycling of Adsorption Heat with Phase Change MaterialsPhase change materials are able to store heat through a liquefaction phase change at a predetermined temperature. When using amine-functionalised adsorbents for CO 2 removal, the excess adsorption heat leads to a decrease in equilibrium capacity, which can thus be mitigated by storing the heat for adsorbent regeneration during the desorption step in a vacuum swing adsorption. This integration diminishes the temperature variations and renders the process more efficient, whereat the exact integration strategy has a strong influence on the overall efficiency of the phase change material performance.