Development of high temperature filter for molten coal slag removal

摘要

this paper proposes an innovative coal combustion/gasification furnace incorporating pebble bed filter for high temperature molten slag removal. The experimental demonstration of this high temperature filter is reported. Molten coal slag particles generated by injecting fly ash of coal into high temperature natural gas fired combustion gas are successfully trapped and extracted from the filter, and 97.7/100 slag removal efficiency is demonstrated.