SU472336A1 - The method of automatic control of the temperature regime of the ethylene polymerization tube reactor - Google Patents

The method of automatic control of the temperature regime of the ethylene polymerization tube reactor

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Publication number
SU472336A1
SU472336A1 SU1761668A SU1761668A SU472336A1 SU 472336 A1 SU472336 A1 SU 472336A1 SU 1761668 A SU1761668 A SU 1761668A SU 1761668 A SU1761668 A SU 1761668A SU 472336 A1 SU472336 A1 SU 472336A1
Authority
SU
USSR - Soviet Union
Prior art keywords
reactor
temperature
automatic control
tube reactor
ethylene polymerization
Prior art date
Application number
SU1761668A
Other languages
Russian (ru)
Inventor
Леонид Викторович Александров
Александр Эльхананович Софиев
Original Assignee
Государственный всесоюзный центральный научно-исследовательский институт комплексной автоматизации
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Государственный всесоюзный центральный научно-исследовательский институт комплексной автоматизации filed Critical Государственный всесоюзный центральный научно-исследовательский институт комплексной автоматизации
Priority to SU1761668A priority Critical patent/SU472336A1/en
Application granted granted Critical
Publication of SU472336A1 publication Critical patent/SU472336A1/en

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Description

Температуру в конце реактора 1 замер ют с помощью датчика 7 температуры и измер ют с помощью регул тора 12 через реле 9, сумматор 8 клапаном 16 на линии инициатора в реактор 1. Реле 9 передает сигнал с регул тора 12 на сумматор 8 только в момент снижени  давлени  в реакторе 1, т. е. при поступлении сигнала с выхода генератора 13.The temperature at the end of the reactor 1 is measured by the temperature sensor 7 and measured by the controller 12 via the relay 9, the adder 8 by the valve 16 on the initiator line to the reactor 1. The relay 9 transmits the signal from the controller 12 to the adder 8 only at the moment of decrease pressure in reactor 1, i.e. when a signal comes from the output of the generator 13.

В случае использовани  в процессе полимеризации газообразного кислорода как инициатора , т. е. при транспортном запаздывании, генератор 13 периодических снижений давлени  в реакторе 1 выдает сигнал на реле 9 после сигнала на сумматор И на величину транспортного запаздывани .In the case of using gaseous oxygen as an initiator in the polymerization process, i.e. during transport delay, generator 13 of the periodic pressure drops in reactor 1 outputs a signal to relay 9 after a signal to adder AND by the amount of transport delay.

Предмет изобретени Subject invention

Claims (2)

1. Способ автоматического регулировани  температурного оежима трубчатого реактора1. Method for automatic control of the temperature of the tube reactor полимеризации этилена, состо щий в стабилизации значени  максимальной температуры в середине реактора воздействием на расход инициатора в реактор и кратковременных периодических снижений давлени  в реакторе на 5--25% от номинального значени , отличающийс  тем, что, с целью повыщени  точности регулировани  температурного режима, регулируют значение температуры в конце реа-ктора путем кратковременного изменени  расхода инициатора в реактор в момент периодического кратковременного снижени  давлени .polymerization of ethylene, which consists in stabilizing the maximum temperature in the middle of the reactor by affecting the flow rate of the initiator into the reactor and short-term periodic pressure drops in the reactor by 5-25% of the nominal value, characterized in that, in order to increase the accuracy of temperature control, the value of the temperature at the end of the reactor by briefly changing the flow rate of the initiator into the reactor at the time of the periodic short-term decrease in pressure. 2. Способ по п. 1, отличающийс  тем, что знак и величину изменени  расхода инициатора выбирают в зависимости от отклонени  значени  температуры в конце реактора от некоторого заданного значени .2. A method according to Claim 1, characterized in that the sign and magnitude of the change in the flow rate of the initiator is selected depending on the deviation of the temperature value at the end of the reactor from a certain predetermined value.
SU1761668A 1972-03-20 1972-03-20 The method of automatic control of the temperature regime of the ethylene polymerization tube reactor SU472336A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1761668A SU472336A1 (en) 1972-03-20 1972-03-20 The method of automatic control of the temperature regime of the ethylene polymerization tube reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1761668A SU472336A1 (en) 1972-03-20 1972-03-20 The method of automatic control of the temperature regime of the ethylene polymerization tube reactor

Publications (1)

Publication Number Publication Date
SU472336A1 true SU472336A1 (en) 1975-05-30

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Application Number Title Priority Date Filing Date
SU1761668A SU472336A1 (en) 1972-03-20 1972-03-20 The method of automatic control of the temperature regime of the ethylene polymerization tube reactor

Country Status (1)

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SU (1) SU472336A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113291A1 (en) * 1991-04-24 1992-10-29 Bayer Ag PRODUCTION OF ETHYLENE-VINYL ACETATE COPOLYMERS
WO2005061741A1 (en) * 2003-12-23 2005-07-07 Bhp Billiton Sa Limited Method of and apparatus for simulating a biological heap leaching process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113291A1 (en) * 1991-04-24 1992-10-29 Bayer Ag PRODUCTION OF ETHYLENE-VINYL ACETATE COPOLYMERS
WO2005061741A1 (en) * 2003-12-23 2005-07-07 Bhp Billiton Sa Limited Method of and apparatus for simulating a biological heap leaching process
AU2004240256B2 (en) * 2003-12-23 2009-03-12 Consolidated Nominees (Pty) Ltd Method of and apparatus for simulating a biological heap leaching process
US7727510B2 (en) 2003-12-23 2010-06-01 Bhp Billiton Sa Limited Method of and apparatus for simulating a biological heap leaching process

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