Furnaces – Process – Treating fuel constituent or combustion product
Patent
1987-12-02
1988-08-23
Yuen, Henry C.
Furnaces
Process
Treating fuel constituent or combustion product
110346, 110238, 432 72, F23B 700, F23G 704
Patent
active
047652578
ABSTRACT:
Apparatus for and method of thermally decomposing wastes laden typically with organic solvents, other organic liquids and soluble organic materials, by first extracting such wastes in a pressure vessel using a fluid extractant in which the organics are soluble, thereby producing a fluid extract of the organics in the extractant fluid and a non-extracted residue of reduced BTU/lb value. The extractant fluid, typically propane, is preferably a gas at ordinary conditions of temperature and pressure but in the pressure vessel means is held to conditions of temperature and pressure sufficient to render the extractant fluid a solvent for the organics. Means are provided for separating the residue from the organics extracted from the waste material, and the residue is burned typically in a solids incinerator. The fluid extract is separated into an extracted organics fraction and an extractant fraction, the latter being recycled for use in the pressure vessel. The extracted organics fraction is employed as auxiliary fuel for either the solids incinerator or for an afterburner to which the flue-gases from the incinerator are fed for further, high temperature incineration.
REFERENCES:
patent: 4140467 (1979-02-01), Ellison et al.
patent: 4217090 (1980-08-01), Whike et al.
patent: 4531463 (1985-07-01), Kratz et al.
patent: 4648333 (1987-03-01), Mudd et al.
Abrishamian Ramin
de Filippi Richard P.
CF Systems Corporation
Yuen Henry C.
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