Abstract: The present invention relates to a control apparatus forAa polyolefine reEin production plant comprising: a production system having a polymerization reactor, for continuously changing a composition of a supplied element in said polymerization reactor for continuous polymerization to thereby produce different types of polymers; a pattern storage for storing an operational pattern by a changing operation model for each resin name; . change control means fo~ changing a control parameter based on said operational patterns stored in said pattern storage to thereby change one type of resjn to anotherin said continuous polymerization; a monitoring means for always detecting and monitoring a sub-parameter which changes in accordance with a change in said control parameter; and fuzzy control means for performing fuzzy control of said change control means in such a manner that when a predetermined period of time passes after a change in said control parameter, said cor,trol parameter and said sub-parameter approach target values corresponding to a target resin type to be changed.

Patent Information

Application #

Filing Date

07 March 2003

Publication Number

03/2008

Publication Type

INA

Invention Field

Status

Email

Parent Application

Applicants

MITSUI CHEMICALS

2-5 KASUMIGASEKI 3- CHOME CHIYODE-KA TOKYO

Inventors

1. SHIGEKI HAYSHL

MITSUI CHEMICALSINC, 3, CHIGUSS KAIGAN, ICHIHARA-SHI, CHIBA

2. HIROYUKI MIZUOCHI

MITSUI CHEMICALSINC, 3, CHIGUSS KAIGAN, ICHIHARA-SHI, CHIBA

3. HIROKAZU KATSUYAMA

MITSUI CHEMICALSINC, 3, CHIGUSS KAIGAN, ICHIHARA-SHI, CHIBA

Specification

Documents

Application Documents

#	Name	Date
1	0189-che-2003 abstract.pdf	2011-09-02
1	0189-che-2003 form-5.pdf	2011-09-02
2	0189-che-2003 claims.pdf	2011-09-02
2	0189-che-2003 form-3.pdf	2011-09-02
3	0189-che-2003 correspondence-others.pdf	2011-09-02
3	0189-che-2003 form-26.pdf	2011-09-02
4	0189-che-2003 description(complete).pdf	2011-09-02
4	0189-che-2003 form-1.pdf	2011-09-02
5	0189-che-2003 drawings.pdf	2011-09-02
6	0189-che-2003 description(complete).pdf	2011-09-02
6	0189-che-2003 form-1.pdf	2011-09-02
7	0189-che-2003 correspondence-others.pdf	2011-09-02
7	0189-che-2003 form-26.pdf	2011-09-02
8	0189-che-2003 claims.pdf	2011-09-02
8	0189-che-2003 form-3.pdf	2011-09-02
9	0189-che-2003 abstract.pdf	2011-09-02
9	0189-che-2003 form-5.pdf	2011-09-02