Method of generating electricity using an endothermic coal gasifier and MHD generator
A system and method of generating electrical power wherein a mixture of carbonaceous material and water is heated to initiate and sustain the endothermic reaction of carbon and water thereby providing a gasified stream containing carbon monoxide, hydrogen and nitrogen and waste streams of hydrogen sulfide and ash. The gasified stream and an ionizing seed material and pressurized air from a preheater go to a burner for producing ionized combustion gases having a temperature of about 5000* to about 6000* F which are accelerated to a velocity of about 1000 meters per second and passed through an MHD generator to generate dc power and thereafter through a diffuser to reduce the velocity. The gases from the diffuser go to an afterburner and from there in heat exchange relationship with the gasifier to provide heat to sustain the endothermic reaction of carbon and water and with the preheater to preheat the air prior to combustion with the gasified stream. Energy from the afterburner can also be used to energize other parts of the system.
- Assignee:
- Dept. of Energy
- Patent Number(s):
- US 4345173
- OSTI ID:
- 6435898
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method of generating electricity using an endothermic coal gasifier and MHD generator
Combined goal gasifier and fuel cell system and method
Related Subjects
010404 -- Coal
Lignite
& Peat-- Gasification
30 DIRECT ENERGY CONVERSION
300103* -- MHD Generators-- Materials
Components
& Auxiliaries
AFTERBURNERS
AIR
AIR HEATERS
CARBONACEOUS MATERIALS
COAL
COAL GASIFICATION
COAL-FIRED MHD GENERATORS
COMPRESSED AIR
COMPRESSED GASES
CONVERSION
DC SYSTEMS
DIRECT ENERGY CONVERTERS
ELECTRIC POWER
ENERGY CONVERSION
ENERGY SOURCES
ENERGY SYSTEMS
ENERGY TRANSFER
EQUIPMENT
FLUIDS
FOSSIL FUELS
FUELS
GASES
GASIFICATION
HEAT TRANSFER
HEATERS
HEATING
HYDROGEN COMPOUNDS
INERT ATMOSPHERE
MATERIALS
MHD GENERATORS
OXYGEN COMPOUNDS
PLASMA PRODUCTION
POLLUTION CONTROL EQUIPMENT
POWER
POWER GENERATION
POWER SYSTEMS
THERMOCHEMICAL PROCESSES
VELOCITY
WATER