Carbonaceous slurry combustor

Patent · Tue Nov 22 04:00:00 EST 1988

OSTI ID:6340223

Roy, G; Sheppard, D B

This patent describes a method of combusting pulverized carbonaceous fuel suspended as a slurry in a flow of carrier liquid wherein combustion of the carbonaceous fuel occurs in an elongate combustion zone having a contained tangential and axial flow field of a heated oxidant, the steps of: (a) flowing the slurry longitudinally of a first conduit extending a substantial distance into the tangential and axial flow field of heated oxidant contained in the combustion zone; (b) diverting the flow of the slurry into a flow pattern divergent from and at an angle to the direction of longitudinal flow and about a flow diverting bend extending transversely of the longitudinal axis thereof; (c) intercepting the divergent flow of slurry after passing the bend, with a relatively high velocity flow of atomizing gas flowing through a second conduit annularly surrounding the first conduit, the atomizing gas intercepting the breaking the flow of slurry into minute droplets, and wherein the droplets pass in a divergent pattern into the combustion zone, the droplets being small enough for the carbonaceous fuel to be ignited closely adjacent to the conduit.

• Assignee: TRW Inc., Redondo Beach, CA
• Patent Number(s): US 4785746
• OSTI ID: 6340223
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
ATOMIZATION
CHEMICAL REACTIONS
COAL FINES
COMBUSTION
COMBUSTION CONTROL
COMBUSTORS
CONTROL
CONTROL EQUIPMENT
DESIGN
DISPERSIONS
DROPLETS
EQUIPMENT
FLOW REGULATORS
FUEL FEEDING SYSTEMS
FUEL SLURRIES
FUEL SYSTEMS
FUELS
MIXTURES
OPERATION
OXIDATION
OXIDIZERS
PARTICLES
SLURRIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES