FR2371401A1 - PROCESS FOR INCREASING THE YIELD OF AROMATIC COMPOUNDS DURING EXTRACTIVE DISTILLATION - Google Patents

PROCESS FOR INCREASING THE YIELD OF AROMATIC COMPOUNDS DURING EXTRACTIVE DISTILLATION

Info

Publication number
FR2371401A1
FR2371401A1 FR7731502A FR7731502A FR2371401A1 FR 2371401 A1 FR2371401 A1 FR 2371401A1 FR 7731502 A FR7731502 A FR 7731502A FR 7731502 A FR7731502 A FR 7731502A FR 2371401 A1 FR2371401 A1 FR 2371401A1
Authority
FR
France
Prior art keywords
extractive distillation
column
yield
increasing
aromatic compounds
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
FR7731502A
Other languages
French (fr)
Other versions
FR2371401B1 (en
Inventor
Kamar Percy John
Eckart Muller
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of FR2371401A1 publication Critical patent/FR2371401A1/en
Application granted granted Critical
Publication of FR2371401B1 publication Critical patent/FR2371401B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G7/00—Distillation of hydrocarbon oils
    • C10G7/08—Azeotropic or 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)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

a. L'invention concerne un procédé pour augmenter le rendement en composés aromatiques et pour abaisser en même temps la teneur en solvant du produit de raffinage au cours de l'obtention de composés aromatiques purs par distillation extractive. b. Le procédé comporte l'emploi d'une colonne 1 principale de distillation extractive, d'une colonne 16 latérale chauffée par un bouilleur pour le traitement du liquide retiré de la colonne principale au-dessus de l'introduction du solvant sélectif (20' plateau) et une colonne 25 d'épuisement pour la séparation du solvant et des composés aromatiques se trouvant dans le produit de fond de la colonne 1 principale. c. Application aux distillations extractives évitant les pertes en composés aromatiques et permettant d'obtenir des produits de grande pureté.at. The invention relates to a process for increasing the yield of aromatics and at the same time for lowering the solvent content of the refinery product during obtaining pure aromatics by extractive distillation. b. The process comprises the use of a main extractive distillation column 1, a side column 16 heated by a boiler for the treatment of the liquid withdrawn from the main column above the introduction of the selective solvent (20 'plate ) and a stripping column 25 for the separation of the solvent and the aromatics present in the bottom product of the main column 1. vs. Application to extractive distillations avoiding losses of aromatic compounds and making it possible to obtain products of high purity.

FR7731502A 1976-10-27 1977-10-19 PROCESS FOR INCREASING THE YIELD OF AROMATIC COMPOUNDS DURING EXTRACTIVE DISTILLATION Granted FR2371401A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762648638 DE2648638A1 (en) 1976-10-27 1976-10-27 METHOD FOR INCREASING THE YIELD OF AROMATES IN EXTRACTIVE DISTILLATION

Publications (2)

Publication Number Publication Date
FR2371401A1 true FR2371401A1 (en) 1978-06-16
FR2371401B1 FR2371401B1 (en) 1980-08-08

Family

ID=5991534

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731502A Granted FR2371401A1 (en) 1976-10-27 1977-10-19 PROCESS FOR INCREASING THE YIELD OF AROMATIC COMPOUNDS DURING EXTRACTIVE DISTILLATION

Country Status (10)

Country Link
JP (1) JPS5356622A (en)
BE (1) BE860158A (en)
DE (1) DE2648638A1 (en)
ES (1) ES463576A1 (en)
FR (1) FR2371401A1 (en)
GB (1) GB1588646A (en)
IT (1) IT1087179B (en)
NL (1) NL183936C (en)
PT (1) PT67190B (en)
TR (1) TR19830A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832340A1 (en) * 1988-09-23 1990-03-29 Krupp Koppers Gmbh METHOD AND DEVICE FOR OPTIMIZING THE OPERATION OF AN OUTPUT COLUMN PROVIDED WITH A SIDE COOKER
DE4109632A1 (en) * 1991-03-23 1992-09-24 Krupp Koppers Gmbh METHOD FOR SEPARATING AROMATES BY EXTRACTIVE DISTILLATION
CN100378048C (en) * 2005-08-31 2008-04-02 中国石油化工股份有限公司 Method of extracting, rectifying and separating aromatic hydrocarbons and extracting and rectifying apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211738B (en) * 1962-12-22 1966-03-03 Erdoelchemie Gmbh Process for the separation of C-hydrocarbon mixtures which contain paraffinic, monoolefinic and diolefinic C-hydrocarbons

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211738B (en) * 1962-12-22 1966-03-03 Erdoelchemie Gmbh Process for the separation of C-hydrocarbon mixtures which contain paraffinic, monoolefinic and diolefinic C-hydrocarbons

Also Published As

Publication number Publication date
GB1588646A (en) 1981-04-29
NL183936C (en) 1989-03-01
NL7710105A (en) 1978-05-02
PT67190A (en) 1977-11-01
DE2648638A1 (en) 1978-05-03
NL183936B (en) 1988-10-03
BE860158A (en) 1978-04-26
PT67190B (en) 1979-03-22
JPS5356622A (en) 1978-05-23
ES463576A1 (en) 1978-07-16
FR2371401B1 (en) 1980-08-08
IT1087179B (en) 1985-05-31
TR19830A (en) 1980-01-28

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