Slag processing system for direct coal-fired gas turbines

Patent · Tue Oct 02 00:00:00 EDT 1990

OSTI ID:6078061

Pillsbury, P W

This patent describes direct coal-fired gas turbine systems and methods for their operation. 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.

• Assignee: Dept. of Energy, Washington, DC (USA)
• Patent Number(s): US 4960056; A
• Application Number: PPN: US s 7-404396
• OSTI ID: 6078061
• Resource Relation: Patent File Date: 8 Sep 1989
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
33 ADVANCED PROPULSION SYSTEMS
COAL-FIRED GAS TURBINES
OPERATION
SLAGS
REMOVAL
GAS TURBINES
MACHINERY
TURBINES
TURBOMACHINERY
200104* - Fossil-Fueled Power Plants- Components
330103 - Internal Combustion Engines- Turbine