Method and apparatus for in-flight combustion of carbonaceous fuels

Patent · Tue May 06 04:00:00 EDT 1986

OSTI ID:5720667

Burge, H L; Hardgrove, J A

The method is described of combusting pulverized solid carbonaceous fuel comprising the steps of: (a) introducing such fuel into a combustion chamber near the center of one end thereof; (b) directing at least one stream of oxidizer into the chamber in a manner to provide high velocity rotational flow within the chamber; and (c) regulating the velocities and relative mass flow rates of the fuel and the oxidizer to (1) keep combustion temperatures within a range such that liquid slag is substantially continuously deposited on an inner surface of the chamber and may be removed therefrom separately from gaseous products of combustion, (2) convert most of the carbon content of the fuel particles to oxides of carbon before the particles impinge on the inner walls of the chamber, and (3) maintain a fuel-rich combustion mixture in at least a substantial portion of the combustion zone within the chamber to thereby limit the formation of oxides of nitrogen and/or sulfur.

• Assignee: TRW, Inc., Redondo Beach, CA
• Patent Number(s): US 4586443
• OSTI ID: 5720667
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COAL FINES
COMBUSTION
COMBUSTION CHAMBERS
CONTROL
DESCALING
FLOW RATE
MOTION
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXIDIZERS
OXYGEN COMPOUNDS
POLLUTION CONTROL
ROTATION
SCALE CONTROL
SLAGS
SULFUR COMPOUNDS
SULFUR OXIDES
SURFACE FINISHING
TEMPERATURE CONTROL
THERMOCHEMICAL PROCESSES