SU570371A1 - Method of control of fractionating column with sideways fraction discharge - Google Patents
Method of control of fractionating column with sideways fraction dischargeInfo
- Publication number
- SU570371A1 SU570371A1 SU7602359027A SU2359027A SU570371A1 SU 570371 A1 SU570371 A1 SU 570371A1 SU 7602359027 A SU7602359027 A SU 7602359027A SU 2359027 A SU2359027 A SU 2359027A SU 570371 A1 SU570371 A1 SU 570371A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- selection
- liquid
- fraction
- ratio
- plate above
- Prior art date
Links
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
1one
Изобретение относитс к системам управлени массообменными процессами в нефтегазоперерабатывающей , нефтехимической, пищевой , микробиологической и других отрасл х народного хоз йства.The invention relates to control systems of mass transfer processes in oil and gas processing, petrochemical, food, microbiological and other branches of the national economy.
Известен способ регулировани ректификационных колонн с боковым отбором фракции посредством стабилизации разности температур на «контрольных тарелках (ниже и выше промежуточного отбора) путем изменени в заданных пределах количества продукта, выводимого из промежуточного отбора 1.There is a method of adjusting distillation columns with side sampling of fractions by stabilizing the temperature difference on the control plates (below and above intermediate sampling) by varying the amount of product withdrawn from intermediate selection 1 within specified limits.
Однако известный способ не обеспечивает при различном содержании т желых (нежелательных ) примесей, например смол, в промежуточной фракции получени бокового погона заданного качества.However, the known method does not provide, at various contents of heavy (undesirable) impurities, for example, tar, in the intermediate fraction, to obtain a side product of a given quality.
Известен также способ управлени ректификационных колонн, заключающийс в том, что в зависимости от содержани целевого компонента и температуры верха колонны одновременно измен ют тарелку отбора фракции,, содержащей целевой компонент 2.There is also known a method for controlling distillation columns, which consists in the fact that, depending on the content of the target component and the temperature of the top of the column, the selection plate containing the target component 2 is simultaneously changed.
Недостатком такого способа управлени вл етс ухудшение стабильности работы колонны и повыщение энергозатрат.The disadvantage of this method of control is the deterioration of the stability of the column and the increase in energy consumption.
Цель изобретени - снижение энергозатрат и новышение качества отводимой фракции .The purpose of the invention is to reduce energy consumption and improve the quality of the exhaust fraction.
Достигаетс это тем, что боковой отбор фракции осуществл ют одновременно в жидкой и газообразной фазах с тарелки выше промежуточного отбора и по содержанию нежелательных примесей в боковом отборе фракции измен ют соотношение расходов жидкой и газообразной фаз, поддержива это соотношение расходов равным 5-10 : 1. Предлагаемый способ иллюстрируетс чертежом .This is achieved in that the side selection of the fraction is carried out simultaneously in the liquid and gaseous phases from the plate above the intermediate selection and the content of undesirable impurities in the side selection of the fraction changes the cost ratio of the liquid and gas phases, maintaining this cost ratio equal to 5-10: 1. The proposed method is illustrated in the drawing.
Регулирование температуры на тарелке выше промежуточного отбора производ т с помощью регул тора 1, получающего сигнал от датчика 2. Датчик 2 работает комплектно сThe temperature on the plate above the intermediate sampling is controlled using controller 1, which receives a signal from sensor 2. Sensor 2 works in complete with
термопарой 3 и воздействует на отбор паровой (газообразной) фазы. Необходимое соотношение расходов «жидкость-пары поддерживают с помощью регул тора 4 соотнощени , получающего сигналы от датчиков расхода 5 и 6 и воздействующего на расход жидкой фазы.thermocouple 3 and affects the selection of the vapor (gaseous) phase. The required ratio of liquid-vapor flow rates is maintained using a ratio controller 4, which receives signals from flow sensors 5 and 6 and affects the flow rate of the liquid phase.
При возрастании количества нежелательных примесей в сырье, а следовательно, и в боковом отборе корректируют с помощьюWith an increase in the amount of undesirable impurities in the raw materials, and consequently, in the side selection, they are corrected with
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7602359027A SU570371A1 (en) | 1976-05-11 | 1976-05-11 | Method of control of fractionating column with sideways fraction discharge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7602359027A SU570371A1 (en) | 1976-05-11 | 1976-05-11 | Method of control of fractionating column with sideways fraction discharge |
Publications (1)
Publication Number | Publication Date |
---|---|
SU570371A1 true SU570371A1 (en) | 1977-08-30 |
Family
ID=20660902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU7602359027A SU570371A1 (en) | 1976-05-11 | 1976-05-11 | Method of control of fractionating column with sideways fraction discharge |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU570371A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4722769A (en) * | 1986-04-24 | 1988-02-02 | Allied Corporation | Process for recovery of acetone |
US4961827A (en) * | 1985-02-07 | 1990-10-09 | Basf Aktiengesellschaft | Obtaining very pure maleic anhydride from crude maleic anhydride |
US4994152A (en) * | 1989-01-25 | 1991-02-19 | Basf Aktiengesellschaft | Removal of small amounts of a medium-boiling fraction from a liquid mixture by distillation |
US5487815A (en) * | 1990-12-15 | 1996-01-30 | Hoechst Aktiengesellschaft | Method of optimizing the control of the mass transfer zone in distillation columns |
US5643419A (en) * | 1991-12-12 | 1997-07-01 | Hoechst Aktiengesellschaft | Method of optimizing the control of the mass transfer zone in distillation columns |
US5951828A (en) * | 1996-05-10 | 1999-09-14 | Basf Aktiengesellschaft | Continuous distillation of thermolabile monomers |
-
1976
- 1976-05-11 SU SU7602359027A patent/SU570371A1/en active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4961827A (en) * | 1985-02-07 | 1990-10-09 | Basf Aktiengesellschaft | Obtaining very pure maleic anhydride from crude maleic anhydride |
US4722769A (en) * | 1986-04-24 | 1988-02-02 | Allied Corporation | Process for recovery of acetone |
US4994152A (en) * | 1989-01-25 | 1991-02-19 | Basf Aktiengesellschaft | Removal of small amounts of a medium-boiling fraction from a liquid mixture by distillation |
US5487815A (en) * | 1990-12-15 | 1996-01-30 | Hoechst Aktiengesellschaft | Method of optimizing the control of the mass transfer zone in distillation columns |
US5643419A (en) * | 1991-12-12 | 1997-07-01 | Hoechst Aktiengesellschaft | Method of optimizing the control of the mass transfer zone in distillation columns |
US5951828A (en) * | 1996-05-10 | 1999-09-14 | Basf Aktiengesellschaft | Continuous distillation of thermolabile monomers |
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