Title:
METHOD FOR REGULATING TEMPERATURE IN REACTOR IN OLEFIN POLYMERIZATION
Document Type and Number:
Japanese Patent JP3219162
Kind Code:
B2
Abstract:
PURPOSE: To switch the temperature of a circulating gas rapidly and to enable quick regulation, by controlling the temperature in a reactor used in the olefin polymerization reaction by a specified regulation method.
CONSTITUTION: In the method for regulating the temperature in a reactor 10 used in the polymerization of olefins, a circulating gas is led to the reactor along a circulating gas flow line 11 and cooled by leading the circulating gas which passes through a cooler 23, the circulating gas is cooled by leading part of the gas flowing along the flow line 11 along a by-pass flow line 22 through a cooler. A regulating device 21 for the circulating gas inlet-flow temperature controls the amount of the circulating gas by-pass flow along a circulating gas by-pass flow line 22 through the cooler 23 so that the sum of the openings of a valve 25 in the circulating gas flow line 11 is maintained substantially constant in the range of 90-120%, preferably 105-115%.
Inventors:
Joni Takakarew
Ant palmulose
Ant palmulose
Application Number:
JP16341092A
Publication Date:
October 15, 2001
Filing Date:
June 01, 1992
Export Citation:
Assignee:
Borealis Polymers Osuke Yukitua
International Classes:
B01J8/24; B01J19/00; C08F2/00; C08F2/01; C08F2/02; C08F10/00; G05D23/19; (IPC1-7): C08F2/00; C08F2/01
Domestic Patent References:
| JP255704A | ||||
| JP273805A | ||||
| JP2145608A | ||||
| JP1311108A | ||||
| JP4713962B1 |
Attorney, Agent or Firm:
Teruo Akimoto