Gas separation: processes – Solid sorption – Including reduction of pressure
Reexamination Certificate
2003-03-19
2008-11-11
Lawrence, Frank M (Department: 1797)
Gas separation: processes
Solid sorption
Including reduction of pressure
C095S141000, C095S144000, C585S826000, C526S077000
Reexamination Certificate
active
07449048
ABSTRACT:
The invention provides a method of reusing an inert gas in a polymer production plant by removing impurities such as a polymerization solvent and polymerization monomers from an inert gas discharged from a polymer production plant. The method of reusing an inert gas comprises a step of adsorbing and removing a polymerization solvent and polymerization monomers contained in an inert gas by passing, through an adsorbent layer, an inert gas discharged from a polymer production plant, wherein an inert gas reaching a predetermined purity by removing the polymerization solvent and polymerization monomers in the step of adsorption and removal is reused in the polymer production plant.
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Deguchi Yoshiaki
Nishida Hiroto
Okamoto Etsurou
Tsubohara Kenta
Birch & Stewart Kolasch & Birch, LLP
Lawrence Frank M
Mitsui Chemicals Inc.
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