SU768414A2

SU768414A2 - Adsorbent for chromatography

Info

Publication number: SU768414A2
Application number: SU792738435A
Authority: SU
Inventors: Мигдат Сайфуллович Ханнанов
Original assignee: За витель
Priority date: 1979-02-12
Filing date: 1979-02-12
Publication date: 1980-10-07

Description

Изобретение относится к способам автомата ческого управления, в частности процессам разделения и очистки газожидкостных бинарных или условно бинарных смесей с помощью селек· тивных растворителей или поглотителей, например, в процессах жидкостной экстракции, абсорбции газов, экстрактивной ректификации, хемосорбции, очистки газов от примесей жидкими поглотителями и является усовершенствованием известного способа по авт. свид. № 542527.The invention relates to automatic control methods, in particular the separation and purification of gas-liquid binary or conditionally binary mixtures using selective solvents or absorbers, for example, in the processes of liquid extraction, gas absorption, extractive distillation, chemisorption, gas purification from impurities by liquid absorbers and is an improvement of the known method according to ed. testimonial. No. 542527.

В основном изобретении описан способ автоматического управления процессом жидкостной экстракции путем коррекции подучи экстрагента по величине удельной работы разделения [1], Недостатком известного способа является то, что при использовании неоднородного растворителя часть целевого компонента остается в нем, что снижает эффективность разделения.The main invention describes a method for automatically controlling the liquid extraction process by correcting the extraction of extractant according to the specific separation work [1]. The disadvantage of this method is that when using an inhomogeneous solvent, part of the target component remains in it, which reduces the separation efficiency.

С целью повышения эффективности разделения за счет увеличения точности управления,дополнительно измеряют соотношение расходов экстрагент-сырье, содержание целевого компонента в поступающем экстрагенте и по их величинам корректируют подачу экстрагента.In order to increase the separation efficiency by increasing the accuracy of control, the ratio of extractant-raw material costs is additionally measured, the content of the target component in the incoming extractant, and the extractant supply is adjusted by their values.

На чертеже представлена схема реализации способа.The drawing shows a diagram of the implementation of the method.

Способ осуществляется следующим образом <The method is as follows <

Система 1 селективного разделения имеет два входных (сырье и растворитель) и два выходных (отходов и продукта) потоков. Расходы их измеряются с помощью датчиков 2,The selective separation system 1 has two input (raw and solvent) and two output (waste and product) streams. Their costs are measured using sensors 2,

3,4 и 5 соответственно сырья, растворителя (экстрагента), отходов и продукта. С помощью датчиков 6 и 7 измеряют содержание целевого компонента в сырье и растворителе, а датчики 8 и 9 контролируют качество отходов и продукта. В вычислительном устройстве 10 определяют текущую величину удельной работы разделения по информации, поступающей с датчиков 2, 3, 4, S, 6, 7, 8 и 9. В вычислительном устройстве 11 определяют соотношение расходов растворитель-сырье по информации с датчиков 2 и 3. Выходной сигнал устройства 11 подключают как корректирующий сигнал к регулятору 12 расхода растворителя в систему 1 разделения, на линии которого установлено исполнительное устройство 13 этого регулятора.3.4 and 5, respectively, of raw materials, solvent (extractant), waste and product. Using sensors 6 and 7, the content of the target component in the feedstock and solvent is measured, and sensors 8 and 9 monitor the quality of the waste and product. In the computing device 10, the current value of the specific work of separation is determined from the information received from the sensors 2, 3, 4, S, 6, 7, 8, and 9. In the computing device 11, the ratio of the solvent-raw material costs is determined from the information from the sensors 2 and 3. The output signal of the device 11 is connected as a correction signal to the solvent flow regulator 12 in the separation system 1, on the line of which an actuator 13 of this regulator is installed.

. 768414 4. 768414 4

Использование данного способа обеспечивает эффективность разделения за счет учета первоначальной насыщаемости растворителя и оптимального соотношения растворитель-сырье.Using this method provides separation efficiency by taking into account the initial saturation of the solvent and the optimal ratio of solvent to raw materials.

Claims

The invention relates to methods of automatic control, in particular the processes of separation and purification of gas-liquid binary or conditionally binary mixtures using selective solvents or absorbers, for example, in processes of solvent extraction, absorption of gases, extractive rectification, chemisorption, purification of gases from impurities by liquid absorbers and is an improvement of the known method according to the author. swith No. 542527. The main invention describes a method for automatically controlling a solvent extraction process by correcting the extractant by the magnitude of the specific separation work. A disadvantage of the known method is that when using a non-uniform solvent, a part of the target component remains in it, which reduces the separation efficiency. In order to increase the separation efficiency by increasing the control accuracy, the cost ratio of the extractant-raw material is additionally measured, the content of the target component in the incoming extractant is adjusted and the flow rate of the extractant is adjusted by their values. The drawing shows a diagram of the implementation of the method. Choco6 is implemented as follows. Selective separation system 1 has two input (raw materials and solvent) and two output (waste and product) streams. Their costs are measured using sensors 2, 3.4 and 5, respectively, of the solvent, the extractant, the waste and the product. Sensors 6 and 7 measure the content of the target component in the raw materials and solvent, and sensors 8 and 9 monitor the quality of the waste and product. In computing device 10, the current value of the specific work of separation is determined from information received from sensors 2, 3, 4, 5, 6, 7, 8, and 9. In computer device I, the ratio of solvent-raw material costs is determined from information from sensors 2 and 3. The output signal of the device 11 is connected as a correction signal to the solvent flow controller 12 in the separation system 1, on the lines of which the actuator 13 of this controller is installed. p efficiency: separation by taking into account the initial saturability of the solvent and the optimum ratio of solvent to raw materials. Claims The method of automatic control of the liquid-injection process according to author's certificate No. 542527, which distinguishes separation by increasing control accuracy, additionally measures the ratio of extractant-raw material costs, the content of the target component in the incoming extractant, and correct the extragate flow by their values. Sources of information taken into account in the examination 1. USSR author's certificate N 542527, cl. B 01 D 11/04, 03.09.73.

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