PURPOSE: To reduce an amt. of unreacted carbon and obtain hydrogen in high concn., by providing a fluid layer zone as carbon particle circulation area between a combustion zone and a gasification zone and a combustion furnace for unreacted carbon at the bottom of a reactor.
CONSTITUTION: Carbon-contg. particles are burned in combustion zone 4 of a reactor 1 and are circulated into a gasification zone 5 for gasification. In the combustion zone 4, air for combustion is fed through a feed opening 11 of a carbon combustion furnace 10. A major portion of the particles at high temp. are fed from the combustion zone 4 into the gasification zone 5 through an overflow path 6 which forms a particle circulation area. In the gasification zone 4, the particles are fluidized for gasification by steam supplied through a feed opening 13 via a dispersing plate 14 produced gas is taken out of the system through an outlet pipe 25. Particles which have undergone reaction in a water gas producing zone 5 are returned from the bottom to the combustion zone 4 through a mobile layer zone 8.
KAKO HIROYUKI
TAKAMOTO NARUHITO
