GB1119790A - Method and apparatus for the automatic control of a continuous distillation process - Google Patents

Method and apparatus for the automatic control of a continuous distillation process

Info

Publication number
GB1119790A
GB1119790A GB50592/65A GB5059265A GB1119790A GB 1119790 A GB1119790 A GB 1119790A GB 50592/65 A GB50592/65 A GB 50592/65A GB 5059265 A GB5059265 A GB 5059265A GB 1119790 A GB1119790 A GB 1119790A
Authority
GB
United Kingdom
Prior art keywords
flow
controller
composition
kept
reflux
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
GB50592/65A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1119790A publication Critical patent/GB1119790A/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
    • B01D3/425—Head-, bottom- and feed stream
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/19—Sidestream

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

1,119,790. Control of fractionating columns. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 29 Nov., 1965 [30 Nov., 1964], No. 50592/65. Heading B1B. A distillation column 1 is automatically controlled to obtain top and bottom products of constant composition by (a) controlling the composition of the bottom product by adjusting the feed stream flow rate in proportion to a signal derived from a composition measuring meter 20 and (b) maintaining liquid levels in the top accumulator 7 and in the base of the column I between desired levels by level gauges 26 and 22. A controller 30 maintains the ratio between the top product flow and the reflux flow at a desired level. Alternatively, the top product flow may be kept at an independent value and then the reflux flow is controlled only by the level gauge 26 (Fig. 3, not shown). The heat flow to the reboiler is controlled by a mater 24 and controller 25. If there is a change in intake mixture the composition of the top product is measured by meter 34 (Fig. 4, not shown) and a signal passes to the heat flow controller 25 and also to the reflux controller 27 which also has a signal fed to it from the level gauge. If the bottom product flow is kept at an independent rate then the heat flow to the reboiler is adjusted by a signal derived from a level gauge 22, Fig. 6, not shown. The modification of Fig. 7, not shown, ensures that the contribution from the feed stream to the vapour flow in the upper part of the column is kept at a desired level by means of a flow meter 40 and controller 43 adjusting the preheater 4.
GB50592/65A 1964-11-30 1965-11-29 Method and apparatus for the automatic control of a continuous distillation process Expired GB1119790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6413882A NL6413882A (en) 1964-11-30 1964-11-30

Publications (1)

Publication Number Publication Date
GB1119790A true GB1119790A (en) 1968-07-10

Family

ID=19791536

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50592/65A Expired GB1119790A (en) 1964-11-30 1965-11-29 Method and apparatus for the automatic control of a continuous distillation process

Country Status (6)

Country Link
US (1) US3428527A (en)
BE (1) BE673032A (en)
DE (1) DE1519707A1 (en)
ES (1) ES320123A1 (en)
GB (1) GB1119790A (en)
NL (1) NL6413882A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3546109A (en) * 1968-12-30 1970-12-08 Texaco Inc Method and apparatus for characterization of hydrocarbon mixtures
US3905873A (en) * 1973-09-24 1975-09-16 Standard Oil Co Ohio Control apparatus for fractionation tower
US4502921A (en) * 1981-05-06 1985-03-05 The Foxboro Company Apparatus for the control of alcohol distillation
US4717468A (en) * 1985-12-23 1988-01-05 Phillips Petroleum Company Distillation process control for maximum recovery using minimum energy
US4731175A (en) * 1986-07-07 1988-03-15 Phillips Petroleum Company Preheat control for a fractional distillation process
US20100000719A1 (en) * 2008-07-03 2010-01-07 Lurgi Psi, Inc. Method Of Preheating Beer In An Ethanol Plant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882693A (en) * 1955-07-21 1959-04-21 Phillips Petroleum Co Control system for separation process
US3020213A (en) * 1959-11-16 1962-02-06 Phillips Petroleum Co Fractionation control system
US3111460A (en) * 1960-10-31 1963-11-19 Phillips Petroleum Co Method of and apparatus for controlling a fluid separation process
US3224947A (en) * 1961-06-19 1965-12-21 Phillips Petroleum Co Apparatus for controlling vapor-liquid flow ratios within a fractionation column
US3309288A (en) * 1962-11-02 1967-03-14 Phillips Petroleum Co Fractional distillation of a component from a feedstock by the addition of higher boiler vapors to the reboiler
US3321380A (en) * 1963-08-29 1967-05-23 Phillips Petroleum Co Controlling the heat input to a distillation column in response to temperatures in the system
US3259554A (en) * 1963-10-09 1966-07-05 Phillips Petroleum Co Fractionation control method

Also Published As

Publication number Publication date
DE1519707A1 (en) 1970-07-02
ES320123A1 (en) 1966-09-01
NL6413882A (en) 1966-05-31
BE673032A (en) 1966-05-31
US3428527A (en) 1969-02-18

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