Slag processing system for direct coal-fired gas turbines

Patent · Mon Jan 01 00:00:00 EST 1990

OSTI ID:867540

Pillsbury, Paul W ^[1]

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1. Winter Springs, FL

Direct coal-fired gas turbine systems and methods for their operation are provided by this invention. The systems include a primary combustion compartment coupled to an impact separator for removing molten slag from hot combustion gases. Quenching means are provided for solidifying the molten slag removed by the impact separator, and processing means are provided forming a slurry from the solidified slag for facilitating removal of the solidified slag from the system. The released hot combustion gases, substantially free of molten slag, are then ducted to a lean combustion compartment and then to an expander section of a gas turbine.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: AC21-86MC23167
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4960056
• OSTI ID: 867540
• Country of Publication: United States
• Language: English

Related Subjects

slag
processing
direct
coal-fired
gas
turbines
turbine
systems
methods
operation
provided
primary
combustion
compartment
coupled
impact
separator
removing
molten
hot
gases
quenching
means
solidifying
removed
forming
slurry
solidified
facilitating
removal
released
substantially
free
ducted
lean
expander
section
coal-fired gas
lean combustion
solidified slag
turbine systems
molten slag
hot combustion
primary combustion
substantially free
gas turbine
combustion gases
combustion gas
gas turbines
processing means
direct coal-fired
removing molten
slag processing
impact separator
/110/60/