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FR2388580A1 - Control of extractive distn. column - involves monitoring plate temp. above feed but below solvent addn. point and using this to control heat addn. to column - Google Patents

Control of extractive distn. column - involves monitoring plate temp. above feed but below solvent addn. point and using this to control heat addn. to column

Info

Publication number
FR2388580A1
FR2388580A1 FR7713275A FR7713275A FR2388580A1 FR 2388580 A1 FR2388580 A1 FR 2388580A1 FR 7713275 A FR7713275 A FR 7713275A FR 7713275 A FR7713275 A FR 7713275A FR 2388580 A1 FR2388580 A1 FR 2388580A1
Authority
FR
France
Prior art keywords
column
solvent
point
addn
feed
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.)
Granted
Application number
FR7713275A
Other languages
French (fr)
Other versions
FR2388580B1 (en
Inventor
Paul Mikitenko
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7713275A priority Critical patent/FR2388580A1/en
Priority to DE19782818527 priority patent/DE2818527A1/en
Priority to DD20505878A priority patent/DD135855A1/en
Priority to JP5219378A priority patent/JPS53135887A/en
Publication of FR2388580A1 publication Critical patent/FR2388580A1/en
Application granted granted Critical
Publication of FR2388580B1 publication Critical patent/FR2388580B1/fr
Granted 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
    • B01D3/4283—Bottom stream
    • 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
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/40—Extractive distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation
    • C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
    • C07C7/08—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by extractive distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

In an extractive distn. (a) the feed is introduced at a middle point and the solvent is introduced at a higher point on the column; (b) the column is maintained under the conditions of extractive distn. and heat input is controlled by varying the temp. at some point on the column between the feed plate and the solvent inlet plate, (c) an upper prod. is extd. which should contain >=1 of the components while the bottom prod. contains the solvent and >=1 of the other components in the feed; (d) the bottom prod. is subsequently fractionated to separate this component from the solvent. The temp. control point is pref. at a vertical spacing of 0.1-0.9D from the solvent injection point, where D is the vertical distance between the solvent and feed injection points. This parameter then used to control either the heat input to the boiler, the solvent temp. or the feed temp. Used for sepg. of mixts. of differing polarity esp. hydrocarbon with different satn. degrees, e.g. aromatics (benzene, toluene), diolefins (butadiene, isoprene), and satd. or mono-olefinic cpds. with close b.pts.
FR7713275A 1977-04-29 1977-04-29 Control of extractive distn. column - involves monitoring plate temp. above feed but below solvent addn. point and using this to control heat addn. to column Granted FR2388580A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7713275A FR2388580A1 (en) 1977-04-29 1977-04-29 Control of extractive distn. column - involves monitoring plate temp. above feed but below solvent addn. point and using this to control heat addn. to column
DE19782818527 DE2818527A1 (en) 1977-04-29 1978-04-27 METHOD AND APPARATUS FOR CONTROLLING AN EXTRACTIVE DISTILLATION
DD20505878A DD135855A1 (en) 1977-04-29 1978-04-27 METHOD AND DEVICE FOR CONTROLLING EXTRACTIVE DISTILLATION
JP5219378A JPS53135887A (en) 1977-04-29 1978-04-28 Method and apparatus for controlling extractive distillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7713275A FR2388580A1 (en) 1977-04-29 1977-04-29 Control of extractive distn. column - involves monitoring plate temp. above feed but below solvent addn. point and using this to control heat addn. to column

Publications (2)

Publication Number Publication Date
FR2388580A1 true FR2388580A1 (en) 1978-11-24
FR2388580B1 FR2388580B1 (en) 1982-01-08

Family

ID=9190224

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7713275A Granted FR2388580A1 (en) 1977-04-29 1977-04-29 Control of extractive distn. column - involves monitoring plate temp. above feed but below solvent addn. point and using this to control heat addn. to column

Country Status (4)

Country Link
JP (1) JPS53135887A (en)
DD (1) DD135855A1 (en)
DE (1) DE2818527A1 (en)
FR (1) FR2388580A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003020849A1 (en) * 2001-09-04 2003-03-13 BP Köln GmbH Method for controlling an extractive distillation plant, process control system and extractive distillation plant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916175A1 (en) * 1979-04-21 1980-10-23 Krupp Koppers Gmbh METHOD FOR CONTROLLING THE AMOUNT OF HEAT SUPPLIED TO AN EXTRACTIVE DISTILLATION COLUMN
DE3827560A1 (en) * 1988-08-13 1990-03-08 Henkel Kgaa COLUMN, ESPECIALLY A RECTIFICATION COLUMN, AND METHOD FOR PRODUCING THE COLUMN
DE102013012948B4 (en) 2013-07-29 2015-08-06 Rudolf Krause Mobile device for obtaining steam-distilled ultrapure water, which has an electrical conductivity below 1.0 μS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050450A (en) * 1959-06-12 1962-08-21 Phillips Petroleum Co Extractive distillation control
FR2176488B1 (en) * 1972-03-20 1975-03-21 Inst Francais Du Petrole

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003020849A1 (en) * 2001-09-04 2003-03-13 BP Köln GmbH Method for controlling an extractive distillation plant, process control system and extractive distillation plant
WO2003022390A3 (en) * 2001-09-04 2003-05-30 Bp Koln Gmbh Process for the management of an extractive distillation plant, process control system and extractive distillation plant
CN1319616C (en) * 2001-09-04 2007-06-06 英国石油科隆有限责任公司 Process management method for extractive distillation plant, process control system and extractive distillation plant

Also Published As

Publication number Publication date
DD135855A1 (en) 1979-06-06
JPS612003B2 (en) 1986-01-22
DE2818527A1 (en) 1978-11-02
FR2388580B1 (en) 1982-01-08
JPS53135887A (en) 1978-11-27

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Legal Events

Date Code Title Description
ST Notification of lapse