Jose R Campos

US Patent:

41822463, Jan 8, 1980

Filed:

Jan 16, 1978

Appl. No.:

5/869893

Inventors:

Luis A. Lombana - Belmont CA
Jose G. Campos - Ballston Lake NY

Assignee:

Envirotech Corporation - Menlo Park CA

International Classification:

F23G 500

US Classification:

110188

Abstract:

The following disclosure teaches ways and means for incinerating organic materials in a multiple hearth furnace equipped with an afterburner. In the furnace, the wastes are pyrolyzed in an oxygen deficient atmosphere which is regulated to only partially complete the oxidation of the organic substances which are pyrolyzed from the wastes. In the lower part of the furnace fixed carbon is substantially burned. In the afterburner, air is introduced to complete the oxidation of the partially oxidized substances carried by gases and vapors from the furnace. The air supply to the afterburner is controlled so that, at temperatures above a predetermined temperature, the quantity of air introduced is increased with increasing temperatures and is decreased with decreasing temperatures. In other words, the pyrolyzing furnace is caused to operate with a deficiency of air over its operating range, while the afterburner is caused to operate with excess air and the amount of excess air supplied is used to control the operating temperature by quenching.

US Patent:

40130231, Mar 22, 1977

Filed:

Dec 29, 1975

Appl. No.:

5/645063

Inventors:

Luis A. Lombana - Belmont CA
Jose G. Campos - Belmont CA

Assignee:

Envirotech Corporation - Menlo Park CA

International Classification:

F23G 512

US Classification:

110 8A

Abstract:

The following disclosure teaches ways and means for incinerating organic wastes in a multiple hearth furnace equipped with an afterburner. In the furnace, the wastes are pyrolyzed in an oxygen deficient atmosphere which is regulated to only partially complete the oxidation of the organic substances which are pyrolyzed from the wastes. In the afterburner, air is introduced to complete the oxidation of the partially oxidized substances carried by gases and vapors from the furnace. The air supply to the afterburner is controlled so that, at temperatures above a predetermined temperature, the quantity of air introduced is increased with increasing temperatures and is decreased with decreasing temperatures. In other words, the pyrolyzing furnace is caused to operate with a deficiency of air over its operating range, while the afterburner is caused to operate with excess air and the amount of excess air supplied is used to control the operating temperature by quenching.

US Patent:

RE310468, Oct 5, 1982

Filed:

Aug 15, 1979

Appl. No.:

6/066701

Inventors:

Luis A. Lombana - Belmont CA
Jose G. Campos - Belmont CA

Assignee:

Lurgi Corporation - Belmont CA

International Classification:

F23G 512

US Classification:

110187

Abstract:

The following disclosure teaches ways and means for incinerating organic wastes in a multiple hearth furnace equipped with an afterburner. In the furnace, the wastes are pyrolyzed in an oxygen deficient atmosphere which is regulated to only partially complete the oxidation of the organic substances which are pyrolyzed from the wastes. In the afterburner, air is introduced to complete the oxidation of the partially oxidized substances carried by gases and vapors from the furnace. The air supply to the afterburner is controlled so that, at temperatures above a predetermined temperature, the quantity of air introduced is increased with increasing temperatures and is decreased with decreasing temperatures. In other words, the pyrolyzing furnace is caused to operate with a deficiency of air over its operating range, while the afterburner is caused to operate with excess air and the amount of excess air supplied is used to control the operating temperature by quenching.