DEVELOPMENT OF CERAMIC MATERIALS MANUFACTURED FROM REFRACTORY WASTE FOR HIGH TEMPERATURE THERMAL ENERGY STORAGE APPLICATIONS

摘要

Shaped ceramic for thermal energy storage and a method of preparing it including milling refractory waste having a diameter of 1 mm or less to form powder, sifting the powder to retain powder having a particle size less than 250 µm, combining with a binder such as clay or polymer, and water to form at least one of (1) an extrudable paste and (2) a granulated mixture, forming a green body to from at least one of (1) an extrudable paste and (2) a granulated mixture, drying the green body, firing the green body to form the ceramic product at a temperature in the range of 1000 ° C to 1400 ° C for a period of time in the range of 0.5 hour to 12 hours, and cooling of the ceramic product. The thermal energy storage ceramic materials used relate to the storage of thermal energy up to 1400 ° C. The ceramic product can be used as a fill material in a packed bed thermal energy storage system (PBTES) or as a structured carrier in a thermal energy storage system (TES). Figure for the abstract: 4B