SU401677A1 - METHOD FOR AUTOMATIC REGULATION OF POLYMER CONCENTRATION - Google Patents

METHOD FOR AUTOMATIC REGULATION OF POLYMER CONCENTRATION

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Publication number
SU401677A1
SU401677A1 SU1337174A SU1337174A SU401677A1 SU 401677 A1 SU401677 A1 SU 401677A1 SU 1337174 A SU1337174 A SU 1337174A SU 1337174 A SU1337174 A SU 1337174A SU 401677 A1 SU401677 A1 SU 401677A1
Authority
SU
USSR - Soviet Union
Prior art keywords
polymer concentration
automatic regulation
concentration
polymer
regulation
Prior art date
Application number
SU1337174A
Other languages
Russian (ru)
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 filed Critical
Priority to SU1337174A priority Critical patent/SU401677A1/en
Application granted granted Critical
Publication of SU401677A1 publication Critical patent/SU401677A1/en

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  • Polymerisation Methods In General (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)

Description

Изобретение относитс  к автоматическому регулированию концентрации полимера и может быть использовано при автоматизации любых полимеризационных процессов промышленности синтетического каучука. Реакци  полимеризации в производстве синтетического каучука идет с выделением большого количества тепла и проводитс  в проточном реакторе с мешалкой (или в цепочке таких реакторов). На вход в полимеризатор непрерывно подаетс  реакционна  масса и катализатор. Выдел ющеес  тепло отводитс  хладагентом , подаваемым в рубашку реактора (или в рубашку и змеевик внутри реактора). Регулирование концентрации полимера в процессе полимеризации чрезвычайно важно осуш,ествл ть с большой точностью, так как, во-первых, это параметр, характеризующий производительность, во-вторых, стабилизаци  концентрации полимера положительно сказываетс  на работе последующих стадий производства (например, дегазаци ),  вл  сь дл  них важнейшим качественным показател ем. Известен способ автоматического регулировани  концентрации полимера на выходе из реактора - полимеризатора путем изменени  расхода катализатора. При реализации известного способа автоматически измер ют текущее значение концентрации полимера K(t}, сравнивают с заданным значением /(зад. и в зависимости от величины и знака рассогласовани  Д/( K(t)-/Сзад. осуществл ют изменение расхода катализатора AQnaT., например, с помощью изодромного регул тора: Д(5,„ С,Д/Г + с, , о где Ci и С2 - настроечные параметры регул тора . Недостатком известного сгюсоба  вл етс  низкое качество регулировани  концентрации полимера, что выражаетс  в больщой амплитуде отклонени  текущего значени  концентрации полимера от заданного значени  и большом времени затухани  колебани  переходного процесса. Особенно это характерно дл  реакций полимеризации , подверженных вли нию большого числа возмущающих воздействий и обладающих высокой инерционностью, как, например , при полимеризации в производстве синтетических каучуков СКИ, СКД, СКЭП. Цель изобретени  - улучщение качества регулировани  и однородности получаемых каучуков.The invention relates to the automatic regulation of the concentration of the polymer and can be used to automate any polymerization processes in the synthetic rubber industry. The polymerization reaction in the production of synthetic rubber is carried out with the release of a large amount of heat and is carried out in a flow reactor with a stirrer (or in a chain of such reactors). At the entrance to the polymerizer, the reaction mass and the catalyst are continuously supplied. The released heat is removed by the coolant fed to the jacket of the reactor (or to the jacket and coil inside the reactor). Regulation of polymer concentration in the polymerization process is extremely important to dry out with great precision, since, first, this is a parameter characterizing productivity, secondly, stabilization of polymer concentration has a positive effect on the work of subsequent production stages (for example, degassing), Subscribe to them the most important qualitative indicator. A known method of automatically controlling the concentration of the polymer at the outlet of the reactor - polymerizer by changing the flow rate of the catalyst. When implementing a known method, the current value of the polymer concentration K (t} is automatically measured, compared with the set value / (pos., And depending on the magnitude and the sign of the error D / (K (t) - / C), the consumption of the catalyst AQnaT is changed. for example, using an isodromic controller: D (5, "C, D / G + s, where Ci and C2 are the controller's tuning parameters. A disadvantage of the conventional method is the poor quality of polymer concentration control, which is expressed in a large amplitude deviations of the current poly concentration value This is especially characteristic of polymerization reactions, which are subject to a large number of disturbing influences and have a high inertia, such as in polymerization in the manufacture of synthetic rubbers SKI, SKD, SKEP. improving the quality of regulation and uniformity of the rubbers produced.

SU1337174A 1969-06-10 1969-06-10 METHOD FOR AUTOMATIC REGULATION OF POLYMER CONCENTRATION SU401677A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1337174A SU401677A1 (en) 1969-06-10 1969-06-10 METHOD FOR AUTOMATIC REGULATION OF POLYMER CONCENTRATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1337174A SU401677A1 (en) 1969-06-10 1969-06-10 METHOD FOR AUTOMATIC REGULATION OF POLYMER CONCENTRATION

Publications (1)

Publication Number Publication Date
SU401677A1 true SU401677A1 (en) 1973-10-12

Family

ID=20446048

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1337174A SU401677A1 (en) 1969-06-10 1969-06-10 METHOD FOR AUTOMATIC REGULATION OF POLYMER CONCENTRATION

Country Status (1)

Country Link
SU (1) SU401677A1 (en)

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