Development of a high-performance coal-fired power generating system with pyrolysis gas and char-fired high temperature furnace (HITAF). Quarterly progress report No. 5, January--March 1993
A concept for an advanced coal-fired combined-cycle power generating system is currently being developed. Goals have been specified that relate to the efficiency, emissions, costs, and general operation of the system. (1) Total station efficiency of at least 47 percent. (2) No more than: 0.15 lb NO{sub x} or 0.15 lb SO{sub x} or 0.0075 lb of particulates/10{sup 6} Btu fuel heat input. (3) All solid wastes must be benign. (4) Over 95 percent of the total heat input is ultimately from coal, with initial systems capable of using coal for at least 65 percent of the heat input. (5) Efficient and economic baseload power generation: Operation with a range of US coals, annual capacity factor of 65 percent, and load following with minimal degradation in efficiency. (6) 10-percent lower cost of electricity relative to a modern coal-fired plant conforming to NSPS. (7) Safety, reliability, and maintainability to meet or exceed conventional coal-fired power plants. (8) Amenable to construction using factory-assembled modular components based upon standard design. The system proposed to meet these goals is a combined-cycle system where air for a gas turbine is indirectly heated to approximately 1800{degree}F in furnaces fired with coal-derived fuels and then directly heated in a natural-gas-fired combustor to about 2400{degree}F. The system is based on a pyrolyzing process that converts the coal into a low-Btu fuel gas and char. The fuel gas is relatively clean, and it is fired to heat tube surfaces that are susceptible to corrosion and problems from ash deposition. In particular, the high-temperature air heater tubes, which will need to be a ceramic material, will be located in a separate furnace or region of a furnace that is exposed to combustion products from the low-Btu fuel gas only.
- Research Organization:
- Foster Wheeler Development Corp., Livingston, NJ (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-91PC91154
- OSTI ID:
- 10176090
- Report Number(s):
- DOE/PC/91154-T5; ON: DE93019785
- Resource Relation:
- Other Information: PBD: May 1993
- Country of Publication:
- United States
- Language:
- English
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Development of a high-performance coal-fired power generating system with pyrolysis gas and char-fired high temperature furnace (HITAF)
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Related Subjects
01 COAL, LIGNITE, AND PEAT
COMBINED-CYCLE POWER PLANTS
DESIGN
THERMAL EFFICIENCY
PROGRESS REPORT
LOW BTU GAS
AIR HEATERS
COAL
NATURAL GAS
CHARS
AIR POLLUTION ABATEMENT
ELECTRIC POWER
COST
SAFETY
RELIABILITY
NITROGEN OXIDES
SULFUR DIOXIDE
PARTICULATES
200102
010404
POWER CYCLES
GASIFICATION