GB1031685A - Method for the optimum control of multi-component distillation colums - Google Patents

Method for the optimum control of multi-component distillation colums

Info

Publication number
GB1031685A
GB1031685A GB963163A GB963163A GB1031685A GB 1031685 A GB1031685 A GB 1031685A GB 963163 A GB963163 A GB 963163A GB 963163 A GB963163 A GB 963163A GB 1031685 A GB1031685 A GB 1031685A
Authority
GB
United Kingdom
Prior art keywords
distillate
composition
column
curve
computer
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB963163A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1031685A publication Critical patent/GB1031685A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/42—Regulation; Control
    • B01D3/4211—Regulation; Control of columns

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

1,031,685. Automatic control of distillation columns. HITACHI SEISAKUSHO KABUSHIKI KAISHA. March 11,1963 [March 10,1962; Sept. 1, 1962], No. 9631/63. Heading B1B. The operation of a distillation column 4, for the fractionation of a multi-component mixture, is automatically controlled by operational section 9 in accordance with signals from optimizer 8, comprising relay circuits, which receives instructions from computer 5 via memory device 6 and comparator 7. In one embodiment, a device (not shown) for measuring the composition of the distillate is connected to the input to computer 5; and the column is operated to maintain the composition of the distillate at a specified value with minimum input of heat to the reboiler and minimum withdrawal of heat from the condenser. The computer equipment can achieve this by approximating the characteristic curve of economical operation of the column by a curve having the distillate-composition as parameter and, as control variable, the ratio of the feed rate to the distillate withdrawal rate. Alternatively, the computer equipment may approximate the distillate composition curve by a curve having the reflux ratio as parameter and, as control variable, the distillate withdrawal rate. The column may also be operated in dependence on the composition of the bottom product.
GB963163A 1962-03-10 1963-03-11 Method for the optimum control of multi-component distillation colums Expired GB1031685A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP944962 1962-03-10
JP3774762 1962-09-01

Publications (1)

Publication Number Publication Date
GB1031685A true GB1031685A (en) 1966-06-02

Family

ID=26344176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB963163A Expired GB1031685A (en) 1962-03-10 1963-03-11 Method for the optimum control of multi-component distillation colums

Country Status (2)

Country Link
DE (1) DE1444343A1 (en)
GB (1) GB1031685A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889600A (en) * 1988-02-16 1989-12-26 Conoco Inc. Fractionating column control apparatus and methods
US5047125A (en) * 1988-02-16 1991-09-10 Conoco Inc. Fractionating column control apparatus and methods

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3440501C2 (en) * 1983-11-07 1997-04-30 Mitsubishi Chem Corp Method for fuel control for a coke oven

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889600A (en) * 1988-02-16 1989-12-26 Conoco Inc. Fractionating column control apparatus and methods
US5047125A (en) * 1988-02-16 1991-09-10 Conoco Inc. Fractionating column control apparatus and methods

Also Published As

Publication number Publication date
DE1444343A1 (en) 1968-12-12

Similar Documents

Publication Publication Date Title
ES403086A1 (en) Reaction zone control
ES436431A1 (en) Distillation column reboiler control system
GB1031685A (en) Method for the optimum control of multi-component distillation colums
DK110022C (en) Process of fractionating hydrocarbon mixtures by extractive distillation.
ES408129A1 (en) Means and method for optimizing refined oil yield from a solvent refining unit
GB1036564A (en) Integrator
ES318914A1 (en) A procedure for the automatic control of a continuous distillation system. (Machine-translation by Google Translate, not legally binding)
GB1308717A (en) Method of separating vinyl acetate from liquid mixtures
GB823108A (en) Improvements in or relating to gas/liquid contacting columns
GB1104248A (en) Fractionation method and apparatus
SU390137A1 (en) METHOD OF AUTOMATIC CONTROL OF THE VARIABLE COLUMN BRAHRECTIFICATION APPARATUS
GB1021490A (en) Regulated oscillator circuit
GB1118599A (en) Method and apparatus for the automatic control of a continuous distillation process
DK111355B (en) Process for controlling a continuous distillation with variable amounts of feed mixture at superatmospheric pressure in a distillation column.
ES320123A1 (en) A procedure for the automatic control of a continuous distillation treatment. (Machine-translation by Google Translate, not legally binding)
GB1131842A (en) Improvements in or relating to sintering machines
GB970673A (en) Automatic-gain-control system
GB1233711A (en)
JPS5776616A (en) Malfunction preventing circuit for phase control mechanism
GB1047415A (en)
SU558683A1 (en) Method for automatic control of the rectification process
GB1087979A (en) Improvements in or relating to apparatus for treating fluids
ES278238A1 (en) Continuous procedure for the manufacture of an alkyl isotocyanate (Machine-translation by Google Translate, not legally binding)
GB989341A (en) Process for the separation of mixtures by means of distillation or absorption
SU386641A1 (en)