SU480727A1 - Method for automatic control of styrene polymerization process in a cascade of reactors - Google Patents
Method for automatic control of styrene polymerization process in a cascade of reactorsInfo
- Publication number
- SU480727A1 SU480727A1 SU2014496A SU2014496A SU480727A1 SU 480727 A1 SU480727 A1 SU 480727A1 SU 2014496 A SU2014496 A SU 2014496A SU 2014496 A SU2014496 A SU 2014496A SU 480727 A1 SU480727 A1 SU 480727A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- reactors
- cascade
- reactor
- polymerization process
- automatic control
- Prior art date
Links
Landscapes
- Polymerisation Methods In General (AREA)
Description
вл ют двухкаскадное регулирование температуры кипени полимеризующейс массы в реакторе 2. С помощью датчика конверсии 8 дополнительно замер ют конверсию на выходе реактора 2 и в зависимости от изменени указанной величины мен ют с помощью регул тора 17 и регулирующего клапана 18 расход мономера в реактор /, тем самым регулируют скорость реакции полимеризации, а значит и превращение мономера в каскаде двух реакторов . С помощью датчика конверсии 5 дополнительно замер ют конверсию в реакторе / и между значени ми конверсии и температур в реакторах 1 2 поддерживают с помощью функционального преобразовател 13 и блока коррекции 19 определенную функциональную зависимость, обеспечивающую получение полимера заданного качества на выходе реактора 2. Способ обеспечивает стабилизацию основных технологических параметров, а также качестна получаемого полистирола. Таким образом , предлагаемый способ обеспечивает максимальную производительность установки и заданное качество готового полимера. Предмет изобретени Способ автоматического управлени процессом полимеризации стирола в каскаде реакторов путем регулировани температуры кипени полимеризующейс массы с помощью давлени в реакторах, отличающийс тем, что, с целью максимизации производительности полимеризационной установки и обеспечени заданного качества полимера, измер ют конверсию мономера на выходе из второго реактора и в зависимости от изменени указанной величины мен ют расход мономера в первый реактор, а также измер ют конверсию мономера на выходе из первого реактора и в зависимости от ее изменени , значени конверсии на выходе из второго реактора и значени температуры в первом реакторе мен ют давление в первом реакторе.are two-stage control of the boiling point of the polymerizable mass in reactor 2. Using conversion sensor 8, conversion at the outlet of reactor 2 is additionally measured and, depending on the change in the specified value, the flow rate of monomer to reactor 17 is changed using regulator 17 and control valve 18, most regulate the rate of the polymerization reaction, and hence the conversion of the monomer in the cascade of two reactors. Using the conversion sensor 5, the conversion in the reactor / and between the conversion values and temperatures in the reactors 1 2 is additionally measured using a functional converter 13 and a correction unit 19, a certain functional relationship ensuring the production of a polymer of a given quality at the outlet of the reactor 2. The method ensures stabilization the main technological parameters, as well as the quality of the resulting polystyrene. Thus, the proposed method ensures maximum plant capacity and a given quality of the finished polymer. The subject of the invention. A method for automatically controlling the polymerization process of styrene in a reactor cascade by controlling the boiling point of the polymerizing mass using pressure in the reactors, characterized in that, in order to maximize the performance of the polymerization unit and to ensure the desired quality of the polymer, the monomer conversion at the outlet of the second reactor is measured and depending on the change of the specified value, the monomer consumption in the first reactor is changed, and the conversion of the monomer at the exit from Depending on the change in the first reactor and the conversion value at the outlet of the second reactor and the temperature value in the first reactor, the pressure in the first reactor changes.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2014496A SU480727A1 (en) | 1974-04-12 | 1974-04-12 | Method for automatic control of styrene polymerization process in a cascade of reactors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2014496A SU480727A1 (en) | 1974-04-12 | 1974-04-12 | Method for automatic control of styrene polymerization process in a cascade of reactors |
Publications (1)
Publication Number | Publication Date |
---|---|
SU480727A1 true SU480727A1 (en) | 1975-08-15 |
Family
ID=20581478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2014496A SU480727A1 (en) | 1974-04-12 | 1974-04-12 | Method for automatic control of styrene polymerization process in a cascade of reactors |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU480727A1 (en) |
-
1974
- 1974-04-12 SU SU2014496A patent/SU480727A1/en active
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