Method for in-flight combustion of carbonaceous fuels

Patent · Tue Aug 12 04:00:00 EDT 1980

OSTI ID:7049290

Burge, H L; Hardgrove, J A; Krieve, W F

An apparatus and method for combusting carbonaceous fuels includes a reaction chamber defining a reaction zone and means for injecting fuel and oxidizer gas in a manner to produce in the reaction zone a wheel-type flow of the fuel-gas mixture. In preferred embodiments, the high velocity wheel-type flow operates to suspend fuel or other reactant particles in the swirling gas for residence times required for substantially complete reaction of the particles prior to the particles impinging against the walls of the reaction chamber. High angular veocities and the resulting centrifugal forces operate to remove substantially all slag from the gas as it approaches the downstream end of the reaction chamber. Operating temperatures are maintained at a level to avoid excessive volatilization of slag and thereby promote separation of liquid slag from the gaseous reaction products. Dense phase flow is employed for transporting pulverized reactants such as coal to the reaction chamber and injecting the reactants through a pintle fuel injector.

• Assignee: Trw Inc
• Patent Number(s): US 4217132
• OSTI ID: 7049290
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
02 PETROLEUM
025000 -- Petroleum-- Combustion
04 OIL SHALES AND TAR SANDS
040600 -- Oil Shales & Tar Sands-- Products & By-Products
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
AIR
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION CHAMBERS
COMBUSTORS
DESIGN
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
FUELS
GASES
MATERIALS
NONMETALS
OIL SHALES
OXIDATION
OXYGEN
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
THERMOCHEMICAL PROCESSES