OPERATION METHOD OF FLUIDIZED BED FURNACE

• Main Authors: HORIO MASAYUKI, HOSODA SHUGO, NAGATOU SHIYUUICHI, TOYODA SEIICHIRO, OSHITA TAKAHIRO, MIYOSHI YOSHIHISA, SHIMOKURA AKIRA, SHINANO TOMOYUKI
• Format: Patent
• Language: English
• Published: 31.10.2003
• Edition: 7
• Subjects: AIR; BLASTING; CARBURETTING AIR OR OTHER GASES; CHEMISTRY; COMBUSTION APPARATUS; COMBUSTION PROCESSES; FUELS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; LUBRICANTS; MECHANICAL ENGINEERING; METALLURGY; METHODS OF STEAM GENERATION; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; STEAM BOILERS; STEAM GENERATION; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To provide an operation method of a fluidized bed furnace as a composite furnace integrated with a gasification furnace and an oxidation furnace. SOLUTION: This operation method of a composite fluidized bed furnace has two functions of the gasification furnace and the oxidation furnace. Fuel is supplied to the fluidized bed gasification furnace, and the fuel is gasified while circulating the fuel in a fluidized bed of the fluidized bed gasification furnace. The obtained generated gas is led outside the fluidized bed gasification furnace, and char ungasified by gasification is allowed to enter a fluidized bed oxidation furnace so that the char is completely burnt by the fluidized bed oxidation furnace. COPYRIGHT: (C)2004,JPO