Low NO sub x burner operations with natural gas cofiring

Patent · Tue Oct 02 00:00:00 EDT 1990

OSTI ID:6353531

Berkau, E; Breen, B; Gabrielson, J E; Winberg, S

This patent describes an improved combustion method for reducing NO{sub x} emissions from a coal burner of the type where pulverized coal is injected into a combustion zone. It comprises the addition of at least one flammable fuel, other than coal, the addition being from 2% to 25% of the total energy input into the combustion zone, wherein the addition provides at least one of NO{sub x} reduction, stable ignition, prevention of flame lift-off, elimination of rumble, recovery of lost load and reduction of slagging, fouling and corrosion.

• Assignee: Consolidated Natural Gas Service Co., Inc. Pittsburgh, PA (USA)
• Patent Number(s): US 4960059; A
• Application Number: PPN: US s 7-371059
• OSTI ID: 6353531
• Resource Relation: Patent File Date: 26 Jun 1989
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
03 NATURAL GAS
BURNERS
AIR POLLUTION ABATEMENT
COAL FINES
COCOMBUSTION
NATURAL GAS
COMBUSTION CONTROL
NITROGEN OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
CONTROL
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
NITROGEN COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
THERMOCHEMICAL PROCESSES
014000* - Coal
Lignite
& Peat- Combustion
034000 - Natural Gas- Combustion