Dual reactor apparatus for polymerizing ethylene

Details Dual reactor apparatus for polymerizing ethylene Dual reactor apparatus for polymerizing ethylene

1978-10-02

1980-10-21

Chiesa, Richard L.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Organic polymerization

422138, 526 65, B01J 100

Patent

active

042294169

ABSTRACT:
Ethylene is polymerized in a dual reactor system in which two reactors are connected in series with a heat exchanger, or intercooler, disposed therebetween. The reaction stream from the first reactor at elevated pressure and temperature is passed through the heat exchanger to effect cooling of the stream. Following passage through the heat exchanger, the pressure of the cooled reaction stream is reduced through a pressure let-down valve and the stream is thereafter introduced into the second reactor wherein further polymerization takes place. The reactors can both be of the autoclave type although one of the reactors can be of the tubular variety.

REFERENCES:
patent: 2964514 (1960-12-01), Fawcett
patent: 3380978 (1968-04-01), Ryan et al.
patent: 3875128 (1975-04-01), Suzuki
patent: 3875134 (1975-04-01), Morikawa et al.
patent: 4123600 (1978-10-01), Kita et al.

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