Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction

Abstract CO 2 methanation is a promising technology to enable the use of as resource. Thermal control methanation, which highly active exothermic reaction, important avoid thermal runaway and subsequent degradation catalyst. Using heat storage capacity phase change material (PCM) for reaction novel passive approach. In this study structure was developed, wherein catalysts were directly loaded onto micro-encapsulated PCM (MEPCM). The MEPCM prepared in three steps consisting boehmite treatment, precipitation oxidation an impregnation process adopted prepare Ni catalyst-loaded did not show any breakage or deformation capsule decrease after treatment. demonstrated higher potential alternative catalyst support than commercially available ?-Al O 3 particle. addition, suppressed temperature rise bed at high absorption rate (2.5 MW m ?3 ). conclusion, high-speed, high-precision device because its high-density energy resolution spatial gap between cooling devices. This concept has overcome technical challenges faced by efficiency enhancement industrial chemical reactions.