Thermal treatment of wastes in an advanced cyclonic combustor

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:6006784

Abbasi, H A; Khinkis, M J; Kunc, W

IGT is developing an advanced waste combustion concept, based on cyclonic combustion principles, for application to a wide range of industrial wastes. In IGT's cyclonic combustor, a mixture of fuel and combustion air is fed tangentially at a relatively high velocity into a cylindrical chamber. The waste is injected either tangentially with the fuel or separately in a tangential, radial, or axial configuration. This approach provides high combustion intensity with internal recirculation of combustion products, which results in extremely stable and complete combustion, even at relatively low temperatures. IGT has performed three successful test programs involving cyclonic waste combustion for industrial clients. In one program, industrial wastewaters containing 40% to 50% organics and inorganics with heating values of 1600 to 3270 Btu/lb were combusted to 99.9% completion at only 2000{degrees}F. The low combustion temperature minimized the supplemental fuel required. In another program, simulated low-Btu industrial off-gases (55 to 65 BTu/SCF) were successfully combusted with stable combustion at 1900{degrees}F using air and waste preheat. Supplemental fuel was unnecessary because of the mixing that occurs in the cyclonic combustor. The conversion of fuel-bonded nitrogen to NO{sub x} was as low as 5%, and CO levels were in the range of 25 to 30 ppm. In the third program, CCl{sub 4} (as a test surrogate for PCBs) was efficiently destroyed by firing natural gas or hexane. With 100% CCl{sub 4} and natural gas firing, the DRE at 2200{degrees}F and a 0.25-second residence time ranged from 99.9999% to 99.9999%. These successful tests have led to the design and construction of a modular test facility at IGT's Energy Development Center. 13 figs., 17 tabs.

• Research Organization: Institute of Gas Technology, Chicago, IL (United States)
• Sponsoring Organization: IGT; Institute of Gas Technology, Chicago, IL (United States)
• OSTI ID: 6006784
• Report Number(s): CONF-9106296-1; ON: TI92002493
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ASHES
CARBON TETRACHLORIDE
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHLORINATED ALIPHATIC HYDROCARBONS
COMBUSTION
COMBUSTION PRODUCTS
COMBUSTORS
CYCLONE COMBUSTORS
ENERGY RECOVERY
HALOGENATED ALIPHATIC HYDROCARBONS
HEAT RECOVERY
HYDROGEN COMPOUNDS
INDUSTRIAL WASTES
LIQUID WASTES
MANAGEMENT
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
RECOVERY
RESIDUES
SULFUR COMPOUNDS
SULFUR OXIDES
TESTING
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE WATER
WASTES
WATER