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Title: Process for generating electricity in a pressurized fluidized-bed combustor system

Abstract

A process and apparatus for generating electricity using a gas turbine as part of a pressurized fluidized-bed combustor system wherein coal is fed as a fuel in a slurry in which other constituents, including a sulfur sorbent such as limestone, are added. The coal is combusted with air in a pressurized combustion chamber wherein most of the residual sulfur in the coal is captured by the sulfur sorbent. After particulates are removed from the flue gas, the gas expands in a turbine, thereby generating electric power. The spent flue gas is cooled by heat exchange with system combustion air and/or system liquid streams, and the condensate is returned to the feed slurry.

Inventors:
 [1]
  1. Pittsburgh, PA
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
OSTI Identifier:
868071
Patent Number(s):
5067317
Assignee:
United States of America as represented by United State (Washington, DC)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; generating; electricity; pressurized; fluidized-bed; combustor; apparatus; gas; turbine; coal; fed; fuel; slurry; constituents; including; sulfur; sorbent; limestone; added; combusted; air; combustion; chamber; residual; captured; particulates; removed; flue; expands; electric; power; spent; cooled; heat; exchange; liquid; streams; condensate; returned; feed; sulfur sorbent; generating electric; liquid stream; pressurized fluidized; feed slurry; electric power; combustion chamber; heat exchange; gas turbine; flue gas; pressurized fluid; combustion air; bed combustor; generating electricity; liquid streams; pressurized fluidized-bed; fluidized-bed combustor; gas expands; pressurized combustion; /60/

Citation Formats

Kasper, Stanley. Process for generating electricity in a pressurized fluidized-bed combustor system. United States: N. p., 1991. Web.
Kasper, Stanley. Process for generating electricity in a pressurized fluidized-bed combustor system. United States.
Kasper, Stanley. Tue . "Process for generating electricity in a pressurized fluidized-bed combustor system". United States. https://www.osti.gov/servlets/purl/868071.
@article{osti_868071,
title = {Process for generating electricity in a pressurized fluidized-bed combustor system},
author = {Kasper, Stanley},
abstractNote = {A process and apparatus for generating electricity using a gas turbine as part of a pressurized fluidized-bed combustor system wherein coal is fed as a fuel in a slurry in which other constituents, including a sulfur sorbent such as limestone, are added. The coal is combusted with air in a pressurized combustion chamber wherein most of the residual sulfur in the coal is captured by the sulfur sorbent. After particulates are removed from the flue gas, the gas expands in a turbine, thereby generating electric power. The spent flue gas is cooled by heat exchange with system combustion air and/or system liquid streams, and the condensate is returned to the feed slurry.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}

Patent:

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