Patent ID: 6814940
Filing Date: 2004-11-09
Classification: B01J,C10B,Y02E,Y02P

Abstract:
A process for thermal conversion of carbonaceous feedstocks selected from biomass and organic wastes, said process comprising:feeding the feedstock into a drier, said drier comprising a riser having an axially annular cross section equipped with a multi-inlet cyclone for the separation of dried matter from vaporized gases and a dipleg; feeding the feedstock to a fluidized-bed reactor, wherein the feedstock is converted at an elevated temperature under the influence of particulate matter kept in a fluidized state by a fluidizing gas, transferring the particulate matter from the reactor to a regenerator for regeneration and then recirculating the particulate matter to the reactor after the regeneration, and recovering the converted hydrocarbon products from the reactor, wherein said reactor comprises a riser having an axially annular cross section equipped with a multi-inlet cyclone for the separation of particulate matter, and wherein said regenerator is concentrically fitted around said reactor and wherein said regenerator comprises a riser having an axially annular cross section and equipped with a multi-inlet cyclone for separation of regenerated particulate matter; and said dipleg of the drier communicates with the riser of the regenerator.