METHOD AND APPARATUS FOR TEMPERATURE CONTROL OF BATCH TYPE REACTOR

Japanese Patent JP3232255

B2

PROBLEM TO BE SOLVED: To rationalize temperature control of a raw material mixture of an inside by a method wherein an actual heat-exchange heat transfer area between a heat exchanger medium and a raw material mixture is estimated, the over-all heat transfer coefficient of heat exchange between a heat exchange medium and the raw material mixture and a heat exchange capacity corresponding to that coefficient are estimated, and a supply amount of an additional raw material is controlled.
SOLUTION: When an alkylene oxide (hereafter, referred to as AO) addition reaction apparatus 1 is operated, a compound to which AO can be added and a catalyst are supplied inside a reactor 10. When a specific temperature is reached, a flow rate regulation valve 22 of an AO supply line 13 is opened, and an AO addition reaction is started. An actual heat exchange heat transfer area between a heat exchanger medium and a raw material mixture, which is increased following variation in volume generated to the raw material mixture in the reactor 10 at that time, and the over-all heat transfer coefficient in that heat exchange are estimated. Besides, a heat exchange capacity corresponding to that coefficient is estimated. Thereafter, supply of the heat exchange body is controlled so that a reaction temperature of the raw material mixture comes to be within a specific range, an supply amount of an additional raw material corresponding to the heat exchange capacity is estimated, and supply of the raw material is controlled.

Bunji Nishino
Kenji Karube

JP1491597A

November 26, 2001

January 29, 1997

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Lion Corporation

B01J14/00; B01J19/00; C08G65/00; (IPC1-7): B01J19/00; B01J14/00

JP3196836A
JP7219645A
JP62132541A

Minoru Nakamura (7 outside)

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