Polymer cracking

Details Polymer cracking Polymer cracking

1992-03-02

1994-11-15

Pal, Asok

Chemistry of hydrocarbon compounds

Production of hydrocarbon mixture from refuse or vegetation

From synthetic resin or rubber

585648, C07C 100, C07C 400

Patent

active

053649958

ABSTRACT:
This invention relates to a process for the conversion of waste and/or fresh polymers, especially polyolefins, into lower hydrocarbons by vaporizing them in a fluidized bed of particulate material in the presence of a fluidizing gas at a temperature from 300.degree.-690.degree. C. The lower hydrocarbons can be further converted to useful olefins, paraffins or waxes by steam cracking the lower hydrocarbons, preferably in the absence of any catalyst. This is an effective and efficient method of recycling waste polymers.

REFERENCES:
patent: 3843339 (1974-10-01), Saito
patent: 3901951 (1975-08-01), Nishizaki
patent: 3945810 (1976-03-01), Saito
patent: 4143086 (1979-03-01), Carle et al.
patent: 4147593 (1979-04-01), Frischmuth et al.
patent: 4515695 (1985-05-01), Krupp, Jr.
patent: 4822573 (1989-04-01), Timmann
"Recycling of Plastics", Conservation & Recycling, vol. 1, pp. 91-100, Pergamon Press, 1976.

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