Waste petroleum filter recycling process

Details Waste petroleum filter recycling process Waste petroleum filter recycling process

1993-08-31

1995-03-28

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

B08B 700, C21D 1100

Patent

active

054012937

ABSTRACT:
Filters contaminated with hydrocarbons are treated to reduce hydrocarbon content to acceptable levels for transportation and recycling. In one embodiment used petroleum filters are crushed and some of the hydrocarbon products released. The filters, either crushed or non-crushed, are heated in a primary chamber to a temperature of at least about 250.degree. C., the air flow into the primary chamber is controlled and the temperature in the primary chamber is maintained within a temperature range of about 250.degree. to 400 .degree. C. by application of heat and application of water sprays to carbonize hydrocarbons in the filters. The hydrocarbon vapors and water vapors from the primary chamber are condensed in a condenser and any non-condensed hydrocarbons remaining are incinerated in a secondary chamber.

REFERENCES:
patent: 4548651 (1985-10-01), Ramsey
patent: 5196154 (1993-03-01), Celi
patent: 5198018 (1993-03-01), Agarwal

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