초록 ▼

A one-step thermal treatment process for liquefaction of solid wastes selected from the group consisting of printed circuit board wastes, plastic wastes, rubber wastes, scrap fires, used cables/wires, auto shredder residues, contaminated soils, and waste lubricating oils to recover valuable oil prod

A one-step thermal treatment process for liquefaction of solid wastes selected from the group consisting of printed circuit board wastes, plastic wastes, rubber wastes, scrap fires, used cables/wires, auto shredder residues, contaminated soils, and waste lubricating oils to recover valuable oil products. Apparatus is provided and includes a means for continuous feeding, an inclined screw liquefaction reactor(ISLR), and means for handling oils and gas products. Wastes are liquefied in used lubricating oils or recycled heavy oil product at relatively low temperatures, and the unliquefied inorganic materials are recovered.

대표청구항 ▼

[ What is claimed:] [1.] A resource recycling method of waste treatment of a feed with liquefaction and pyrolysis in an inclined liquefaction/pyrolysis zone, said zone having a liquefaction zone at a lower end and a pyrolysis zone at an upper end, said method comprising the steps of:crushing the fee

[ What is claimed:] [1.] A resource recycling method of waste treatment of a feed with liquefaction and pyrolysis in an inclined liquefaction/pyrolysis zone, said zone having a liquefaction zone at a lower end and a pyrolysis zone at an upper end, said method comprising the steps of:crushing the feed into small pieces having a size of about 5-10 cm,feeding the crushed feed into said liquefaction zone,introducing oil into said liquefaction zone,liquefying the crushed feed with the oil at a temperature of 200.degree.-400.degree. C.,moving the crushed feed upwardly into said pyrolisis zone, andpyrolyzing an output from the liquefying step at a temperature of 300.degree.-500.degree. C. in said pyrolysis zone.