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Title: Electric utility second-generation pressurized fluidized bed combustion plants

In the search for a more efficient, less costly, and more environmentally responsible method for generating electrical power from coal, research and development has turned to advanced pressurized fluidized bed combustion (PFBC) and coal gasification technologies. A logical extension of this work is the second-generation PFBC plant, which incorporates key components of each of these technologies. In this new type of plant, coal is devolatilized/carbonized before it is injected into the PFB combustor bed, and the low-Btu fuel gas produced by this process is burned in a gas turbine topping combustor. By integrating coal carbonization with PFB coal/char combustion, gas turbine inlet temperatures higher than 1149{degrees}C (2100{degrees}F) can be achieved. The carbonizer, PFB combustor, and particulate-capturing hot gas cleanup systems operate at 871{degrees}C (1600{degrees}F), permitting sulfur capture by lime-based sorbents and minimizing the release of coal contaminants to the gases. This paper presents the performance and economics of this new type of plant and provides a brief overview of the pilot plant test programs being conducted to support its development.
Authors:
 [1] ;  [2]
  1. (Foster Wheeler Development Corp., Livingston, NJ (United States))
  2. (USDOE Morgantown Energy Technology Center, WV (United States))
Publication Date:
OSTI Identifier:
7171760
Report Number(s):
DOE/METC/C-92-7028; CONF-9209201--1
ON: DE92040396
Resource Type:
Conference
Resource Relation:
Conference: Application of fluidized-bed comubstion for power generation utility conference, Boston, MA (United States), 23-25 Sep 1992
Research Org:
USDOE Morgantown Energy Technology Center, WV (United States)
Sponsoring Org:
DOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; CHARS; FLUIDIZED-BED COMBUSTION; COAL; CARBONIZATION; DEVOLATILIZATION; COMBINED-CYCLE POWER PLANTS; ECONOMICS; PERFORMANCE; FLUIDIZED-BED COMBUSTORS; PILOT PLANTS; ELECTRIC UTILITIES; GAS TURBINES; HOT GAS CLEANUP; LOW BTU GAS; PRESSURIZATION; TOPPING CYCLES; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; COMBUSTION; COMBUSTORS; DECOMPOSITION; ENERGY SOURCES; EQUIPMENT; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; FUNCTIONAL MODELS; GAS FUELS; GASES; MACHINERY; MATERIALS; OXIDATION; POWER PLANTS; PUBLIC UTILITIES; PURIFICATION; PYROLYSIS PRODUCTS; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; TURBINES; TURBOMACHINERY 014000* -- Coal, Lignite, & Peat-- Combustion