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

Patent · Mon Dec 31 23:00:00 EST 1990

OSTI ID:868071

Kasper, Stanley ^[1]

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1. Pittsburgh, PA

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.

• Research Organization: National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
• Assignee: United States of America as represented by United State (Washington, DC)
• Patent Number(s): US 5067317
• OSTI ID: 868071
• Country of Publication: United States
• Language: English

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/60/
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