▎ 摘　　要

NOVELTY - A system consists of a fluidized bed apparatus with an energy storage material. The energy storage material is provided in volumes (3) coated with an outer layer of solid particles (5) of different material. The volumes (3) have largest size in the interval 1-1000 mu m. The solid particles have largest size in the interval 1-500 nm. USE - System e.g. chemical heat pump used for energy storage and releasing heat for capturing carbon dioxide (all claimed). ADVANTAGE - The system has excellent heat transfer property, and reduced structural changes in the energy storage material such that the energy storage material is utilized for cycles without impairment of the material, and operates with less effort and less energy for fluidizing storage material. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) storing of energy; and (2) release of heat. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the energy storage material. Volumes (3) Solid particles (5)