Advanced Two-stage Combustor

Conference · Tue Aug 06 04:00:00 EDT 2002 · Proceedings of the 25th Intersociety Energy Conversion Engineering Conference

DOI:https://doi.org/10.1109/iecec.1990.747993· OSTI ID:6270968

Rehmat, Amir ^[1]; Khinkis, Mark ^[1]

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1. Institute of Gas Technology, Chicago, IL (United States)

The Institute of Gas Technology's (IGT) two-stage combustor promises increased combustion efficiency, greatly reduced formation of NO_x, significantly lower CO, THC, SO_x, and HCl emissions, lower particulate emission, and production of environmentally benign residue (ash, spent sorbent). The first stage of the combustor is a turbulent fluidized bed, which operates under substoichiometric conditions so that the fuel-bound nitrogen is prevented from producing NO_x. Sorbent is injected to promote the capture of sulfur and/or chlorine in solid form. The cyclonic combustor constitutes the second stage of the two-stage combustor. High-intensity, high-efficiency combustion of the reducing gases from the first stage takes place in the cyclonic combustor under conditions that minimize the formation of NO_x while providing low CO and THC emissions. Combustion of a low-Btu gas in the cyclone combustor is described.

• Research Organization: Institute of Gas Technology, Chicago, IL (United States)
• Sponsoring Organization: USDOE
• OSTI ID: 6270968
• Report Number(s): CONF-900801--44; ON: TI91008399; ISBN: 0-8169-0490-1
• Conference Information: Journal Name: Proceedings of the 25th Intersociety Energy Conversion Engineering Conference
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
014000* -- Coal
Lignite
& Peat-- Combustion
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COAL FINES
COMBUSTION
COMBUSTION PRODUCTS
COMBUSTORS
CONTROL
CYCLONE COMBUSTORS
EFFICIENCY
ENERGY SOURCES
FLUIDIZED-BED COMBUSTORS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LIMESTONE
LOW BTU GAS
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
POLLUTION CONTROL
ROCKS
SEDIMENTARY ROCKS
SULFUR COMPOUNDS
SULFUR OXIDES
THERMOCHEMICAL PROCESSES