METHOD OF RECYCLING WASTE GAS IN POLYMER PRODUCTION PLANT

Title:

METHOD OF RECYCLING WASTE GAS IN POLYMER PRODUCTION PLANT

Document Type and Number:

WIPO Patent Application WO/2003/082927

Kind Code:

A1

Abstract:

A method of removing impurities, such as a polymerization solvent and a polymerization monomer, from an inert gas discharged from a polymer production plant and reusing the inert gas in the polymer production plant. There is provided an adsorption removal step wherein an inert gas discharged from a polymer production plant is passed through an adsorbent layer to thereby remove any polymerization solvent and polymerization monomer contained in the inert gas by adsorption. The inert gas having any polymerization solvent and polymerization monomer removed therefrom by adsorption so as to reach a given purity in the adsorption removal step is reused in the polymer production plant.

Inventors:

NISHIDA HIROTO (JP)
TSUBOHARA KENTA (JP)
OKAMOTO ETSUROU (JP)
DEGUCHI YOSHIAKI (JP)

Application Number:

PCT/JP2003/003303

Publication Date:

October 09, 2003

Filing Date:

March 19, 2003

Export Citation:

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Assignee:

MITSUI CHEMICALS INC (JP)
NISHIDA HIROTO (JP)
TSUBOHARA KENTA (JP)
OKAMOTO ETSUROU (JP)
DEGUCHI YOSHIAKI (JP)

International Classes:

B01D53/04; C08F2/01; (IPC1-7): C08F2/01; B01D53/04

Domestic Patent References:

WO2000029452A1

2000-05-25

Foreign References:

JPH11152301A	1999-06-08
JPS5776006A	1982-05-12

Other References: