Apparatus and method for treatment of soil contaminated with hyd

Details Apparatus and method for treatment of soil contaminated with hyd Apparatus and method for treatment of soil contaminated with hyd

1986-09-08

1987-05-26

Favors, Edward G.

Furnaces

Refuse incinerator

Means for cleaning by combustion

110241, 110246, 110346, 134 2, F23D 1400, F23G 500, F23G 512

Patent

active

046676090

ABSTRACT:
A sealed, negative pressurized, high temperature furnace, through which hydrocarbon contaminated soil is conveyed, is operated in the near-infrared heating region at radiation wavelengths between about 0.75 and about 3.0 um. The furnace, rotary sealed at the input and exit ports and maintained at a negative pressure, is in the form of an elongated cylinder, divided into four series-arranged heating zones, each of which is separately fed by a preferably stoichiometric mixture of a combustible gas, preferably propane and air. The flow of the gas/air mixture into each of the heating zones is regulated so that the first zone is maintained at about 2900.degree. F. normally, (3000.degree. F. maximum), the second zone is maintained at about 2900.degree. F. normally, and the third and fourth heating zones are maintained at about 2900.degree. F. normally.

REFERENCES:
patent: 4487372 (1984-12-01), Deve
patent: 4573417 (1986-03-01), Deve

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