SOLID CIRCULATING METHOD AND APPARATUS BETWEEN FLUIDIZED BED DESULFURIZATION REACTOR AND REGENERATIVE REACTOR FOR HIGH TEMPERATURE DRY DESULFURIZATION USING NONMECHANICAL VALVE

摘要

PURPOSE: A solid circulating method and its apparatus for allowing a solid to smoothly flow down, preventing a backflow gas and carrying out continuous desulfurization and regeneration are provided which improve desulfurization efficiency and simplify processes. CONSTITUTION: A method is characterized in that two circulating apparatuses (4)(5) are installed between a desulfurization reactor and a regenerative reactor to prevent a backflow gas and to allow a solid to smoothly flow down. The desulfurization efficiency is improved by dispersing coal gas through a gas dispersion plate and bring a circulating solid(desulfurizing agent) into contact with gas uniformly. The apparatus can control the circulating amount of a solid between two reactors and does not use mechanical valves.