Pyrolyzing plastic or rubber wastes

Details Pyrolyzing plastic or rubber wastes Pyrolyzing plastic or rubber wastes

1986-12-19

1988-05-24

Richman, Barry S.

Distillation: processes, thermolytic

Feed other than coal, oil shale or wood

48209, 201 29, 201 30, 201 31, 585241, C10B 4724, C10B 5300

Patent

active

047464062

ABSTRACT:
Pyrolytic reprocessing of plastic, rubber, or other hydrocarbon materials in which the resultant pyrolysis gas is brought in a cooling stage to a temperature just above the freezing point of water and to a pressure of approximately 0.8 to 1.4 bar of overpressure. The resultant condensate is then separated and heated to a normal storage temperature and the super atmospheric pressure on the condensate reduced to atmospheric pressure. The gas produced thereby comprising C.sub.4 hydrocarbon compounds is supplied to the pyrolysis process as special product gas. By means of this provision, the proportion of aromatic compounds in the pyrolysis gas is raised substantially.

REFERENCES:
patent: 2214368 (1940-09-01), Greensfelder et al.
patent: 3174926 (1965-03-01), Walker et al.
patent: 3489678 (1970-01-01), Moon et al.
patent: 3970524 (1976-07-01), Funk
patent: 4082615 (1978-04-01), Komuro et al.
patent: 4203804 (1980-05-01), Janning et al.
patent: 4206186 (1980-06-01), Holter et al.
patent: 4284616 (1981-08-01), Solbakken et al.

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