Method and apparatus for gas turbine operation using solid fuel

Patent · Tue Jun 15 04:00:00 EDT 1993

OSTI ID:6230132

Korenberg, J

The method for driving a gas turbine is described, said method comprising the steps of: sub stoichiometrically burning solid fuel under super atmospheric pressure in an atmosphere of heated humidified air to convert a substantial amount of carbon in the solid fuel to combustible fuel gas and to produce char containing the remaining carbon in the fuel; adiabatically burning said char under super atmospheric pressure in an environment of heated humidified air to control combustion temperature and provide oxygen for combustion of said char to produce char combustion gases containing oxygen; cleaning said combustible fuel gas and char combustion gases to remove particulate materials therefrom; burning said combustible fuel gas under super atmospheric pressure, oxygen for combustion of said fuel gas being supplied by said char combustion gases and heated humidified air, the heated humidified air being supplied in amounts adequate to control the temperature of fuel gas combustion; expanding the products of fuel gas combustion in the turbine to drive the turbine and to discharge exhaust gas having sensible heat; and removing sensible heat from said exhaust gas to heat humidified air supplied for burning said solid fuel, said char and said fuel gas.

• Assignee: Donlee Tecknologies Inc., York, PA (United States)
• Patent Number(s): US 5218815; A
• Application Number: PPN: US 7-710120
• OSTI ID: 6230132
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
014000 -- Coal
Lignite
& Peat-- Combustion
ADIABATIC PROCESSES
AIR
CHARS
COAL GASIFICATION PLANTS
COAL-FIRED GAS TURBINES
DESIGN
EQUIPMENT
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GAS TURBINES
GASES
HUMIDITY
INDUSTRIAL PLANTS
MACHINERY
PRESSURIZATION
PYROLYSIS PRODUCTS
STOICHIOMETRY
TURBINES
TURBOMACHINERY