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Title: Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine induustrial plant study

Abstract

Second-Generation Pressurized Fluidized Bed Combustion (PFBC) plants provide a coal-fired, high-efficiency, combined-cycle system for the generation of electricity and steam. The plants use lime-based sorbents in PFB combustors to meet environmental air standards without back-end gas desulfurization equipment. The second-generation system is an improvement over earlier PFBC concepts because it can achieve gas temperatures of 2100[degrees]F and higher for improved cycle efficiency while maintaining the fluidized beds at 1600[degrees]F for enhanced sulfur capture and minimum alkali release. Second-generation PFBC systems are capable of supplying the electric and steam process needs of industrial plants. The basic second-generation system can be applied in different ways to meet a variety of process steam and electrical requirements. To evaluate the potential of these systems in the industrial market, conceptual designs have been developed for six second-generation PFBC plants. These plants cover a range of electrical outputs from 6.3 to 41.5 MWe and steam flows from 46,067 to 442,337 lb/h. Capital and operating costs have been estimated for these six plants and for equivalent (in size) conventional, coal-fired atmospheric fluidized bed combustion cogeneration plants. Economic analyses were conducted to compare the cost of steam for both the second-generation plants and the conventional plants.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Foster Wheeler Development Corp., Livingston, NJ (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
7100991
Report Number(s):
DOE/MC/21023-3142
ON: DE93000230
DOE Contract Number:
AC21-86MC21023
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; COAL; FLUIDIZED-BED COMBUSTION; FLUIDIZED-BED COMBUSTORS; COMBINED CYCLES; DESIGN; PRESSURIZATION; INDUSTRIAL PLANTS; POWER GENERATION; PROCESS HEAT; CAPITALIZED COST; COMPARATIVE EVALUATIONS; ENERGY EFFICIENCY; GAS TURBINES; OPERATING COST; SORBENT INJECTION PROCESSES; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; COMBUSTION; COMBUSTORS; COST; EFFICIENCY; ENERGY; ENERGY SOURCES; EQUIPMENT; EVALUATION; FOSSIL FUELS; FUELS; HEAT; MACHINERY; MATERIALS; OXIDATION; THERMOCHEMICAL PROCESSES; THERMODYNAMIC CYCLES; TURBINES; TURBOMACHINERY; 014000* - Coal, Lignite, & Peat- Combustion; 200102 - Fossil-Fueled Power Plants- Power Cycles

Citation Formats

Shenker, J., Garland, R., Horazak, D., Seifert, F., and Wenglarz, R. Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine induustrial plant study. United States: N. p., 1992. Web. doi:10.2172/7100991.
Shenker, J., Garland, R., Horazak, D., Seifert, F., & Wenglarz, R. Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine induustrial plant study. United States. doi:10.2172/7100991.
Shenker, J., Garland, R., Horazak, D., Seifert, F., and Wenglarz, R. Wed . "Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine induustrial plant study". United States. doi:10.2172/7100991. https://www.osti.gov/servlets/purl/7100991.
@article{osti_7100991,
title = {Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine induustrial plant study},
author = {Shenker, J. and Garland, R. and Horazak, D. and Seifert, F. and Wenglarz, R.},
abstractNote = {Second-Generation Pressurized Fluidized Bed Combustion (PFBC) plants provide a coal-fired, high-efficiency, combined-cycle system for the generation of electricity and steam. The plants use lime-based sorbents in PFB combustors to meet environmental air standards without back-end gas desulfurization equipment. The second-generation system is an improvement over earlier PFBC concepts because it can achieve gas temperatures of 2100[degrees]F and higher for improved cycle efficiency while maintaining the fluidized beds at 1600[degrees]F for enhanced sulfur capture and minimum alkali release. Second-generation PFBC systems are capable of supplying the electric and steam process needs of industrial plants. The basic second-generation system can be applied in different ways to meet a variety of process steam and electrical requirements. To evaluate the potential of these systems in the industrial market, conceptual designs have been developed for six second-generation PFBC plants. These plants cover a range of electrical outputs from 6.3 to 41.5 MWe and steam flows from 46,067 to 442,337 lb/h. Capital and operating costs have been estimated for these six plants and for equivalent (in size) conventional, coal-fired atmospheric fluidized bed combustion cogeneration plants. Economic analyses were conducted to compare the cost of steam for both the second-generation plants and the conventional plants.},
doi = {10.2172/7100991},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 01 00:00:00 EDT 1992},
month = {Wed Jul 01 00:00:00 EDT 1992}
}

Technical Report:

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  • Second-Generation Pressurized Fluidized Bed Combustion (PFBC) plants provide a coal-fired, high-efficiency, combined-cycle system for the generation of electricity and steam. The plants use lime-based sorbents in PFB combustors to meet environmental air standards without back-end gas desulfurization equipment. The second-generation system is an improvement over earlier PFBC concepts because it can achieve gas temperatures of 2100{degrees}F and higher for improved cycle efficiency while maintaining the fluidized beds at 1600{degrees}F for enhanced sulfur capture and minimum alkali release. Second-generation PFBC systems are capable of supplying the electric and steam process needs of industrial plants. The basic second-generation system can be appliedmore » in different ways to meet a variety of process steam and electrical requirements. To evaluate the potential of these systems in the industrial market, conceptual designs have been developed for six second-generation PFBC plants. These plants cover a range of electrical outputs from 6.3 to 41.5 MWe and steam flows from 46,067 to 442,337 lb/h. Capital and operating costs have been estimated for these six plants and for equivalent (in size) conventional, coal-fired atmospheric fluidized bed combustion cogeneration plants. Economic analyses were conducted to compare the cost of steam for both the second-generation plants and the conventional plants.« less
  • This three-volume report presents a conceptual design of a coal-fired second-generation pressurized fluidized bed (PFB) combustion plant and identifies its sensitivity to varying operating conditions and economic factors. Depending upon the conditions selected, the plant can achieve a 45-percent efficiency (based on the higher heating value of the coal used as fuel) and a cost of electricity at least 20 percent lower than that of a conventional pulverized-coal-fired plant with wet limestone, flue gas desulfurization. The proposed plant reaches these performance levels by integrating a coal pyrolyzer/carbonizer with a circulating pressurized fluidized bed combustor (CPFBC). Char produced by the carbonizermore » is burned in the CPFBC and the low-Btu fuel gas produced by the carbonizer is burned in a topping combustor to heat the CPFBC exhaust gas to 2100{degree}F and higher before it enters the gas turbine. The carbonizer and CPFBC operate with lime-based sorbents for in-situ sulfur capture at {le}1600{degree}F. Components being developed for first-generation PFB plants (gas turbine inlet temperature {le}1600{degree}F) protect the gas turbine from corrosion, erosion, and deposition. 120 figs., 115 tabs.« less
  • This is the second volume for the conceptual design of a second-generation pressurized fluidized bed combustion plant. Volume 2 consists of Appendix A, which contains information on the carbonizer performance. (JDL)
  • This report is the third volume of a conceptual design for a second-generation pressurized fluidized bed combustion plant. Volume 3 consists of appendices (B thru G) containing information on cycle optimization, integrated carbonizer/CPFBC performance predictions and methodologies, gas turbine evaluations, plant equipment lists, supporting cost detail, and a reference pulverized-coal-fired plant. (JDL)
  • After many years of experimental testing and development work, coal-fired pressurized fluidized bed (PFB) combustion combined-cycle power plants are moving toward reality. Under the U.S Department of Energy`s Clean Coal Technology Program, a 70-MWe PFB combustion retrofit, utilizing a 1525{degrees}F gas turbine inlet temperature, is to be built as a demonstration plant at the American Electric Power Company`s Tidd Plant in Brilliant, Ohio. As PFB combustion technology moves closer and closer to commercialization, interest is turning toward the development of an even more efficient and more cost-effective PFB combustion plant. The targeted goals of this ``second-generation`` plant are a 45-percentmore » efficiency and a cost of electricity (COE) that is at least 20 percent lower than the COE of a conventional pulverized-coal (PC)-fired plant with stack gas scrubbing. In addition, plant emissions should be within New Source Performance Standards (NSPS) and the plant should have high availability, be able to burn different ranks of coal, and incorporate modular construction technologies.« less