NO961347L - Method for removing aromatics from hydrocarbon vapor stream - Google Patents

Method for removing aromatics from hydrocarbon vapor stream

Info

Publication number
NO961347L
NO961347L NO961347A NO961347A NO961347L NO 961347 L NO961347 L NO 961347L NO 961347 A NO961347 A NO 961347A NO 961347 A NO961347 A NO 961347A NO 961347 L NO961347 L NO 961347L
Authority
NO
Norway
Prior art keywords
aromatic hydrocarbons
liquid
vapor stream
distillation column
extractive distillation
Prior art date
Application number
NO961347A
Other languages
Norwegian (no)
Other versions
NO961347D0 (en
Inventor
Bram De Ruiter
Erik Zeef
Original Assignee
Shell Int Research
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 Int Research filed Critical Shell Int Research
Publication of NO961347D0 publication Critical patent/NO961347D0/en
Publication of NO961347L publication Critical patent/NO961347L/en

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  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Fremgangsmåte for fjerning av aromatiske hydrokarboner fra hydrokarbondamp-strøm, omfattende følgende trinn: (1) i en kolonne for ekstraktiv destil- lasjon bringes en hydrokarbondamp-strøm i kontakt med et ekstraksjons-løsnings- middel med evne til selektiv oppløsning av aromatiske hydrokarboner, (2) i den øvre del av kolonnen for eks- traktiv destillasjon tas ut et dampfor- mig raffinat med et redusert innhold av aromatiske hydrokarboner, (3) i bunndelen av kolonnen for ekstrak- tiv destillasjon tas ut en flytende løs- ningsmiddelstrøm som er blitt anriket med aromatiske hydrokarboner, og minst en væske omfattende ekstrak- sjons-løsningsmiddel og aromatiske hydrokarboner tas ut fra den lavere del av kolonnen for ekstraktiv destillasjon og minst en del av den uttatte væske opp- varmes deretter under slike betingelser at minst en del av de aromatiske hydro- karboner som er til stede i væsken for- damper uten vesentlig fordampning av ekstraksjons-løsningsmidlet, hvoretter den oppvarmede væske/damp-strøm retur- neres til kolonnen for ekstraktiv des- tillasjon.A process for removing aromatic hydrocarbons from hydrocarbon vapor stream, comprising the following steps: (1) in a column for extractive distillation, a hydrocarbon vapor stream is contacted with an extraction solvent capable of selectively dissolving aromatic hydrocarbons, ( 2) in the upper part of the extractive distillation column, a vapor-shaped raffinate with a reduced content of aromatic hydrocarbons is extracted; (3) in the bottom part of the extractive distillation column a liquid solvent stream which has been enriched with aromatic hydrocarbons, and at least one liquid comprising extraction solvent and aromatic hydrocarbons is withdrawn from the lower portion of the extractive distillation column and at least a portion of the extracted liquid is then heated under such conditions that at least a portion of the aromatic hydrocarbons present in the liquid evaporate without significant evaporation of the extraction solvent, whereafter a heated liquid / vapor stream is returned to the extraction distillation column.

NO961347A 1995-04-04 1996-04-02 Method for removing aromatics from hydrocarbon vapor stream NO961347L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95200854 1995-04-04

Publications (2)

Publication Number Publication Date
NO961347D0 NO961347D0 (en) 1996-04-02
NO961347L true NO961347L (en) 1996-10-07

Family

ID=8220168

Family Applications (1)

Application Number Title Priority Date Filing Date
NO961347A NO961347L (en) 1995-04-04 1996-04-02 Method for removing aromatics from hydrocarbon vapor stream

Country Status (3)

Country Link
JP (1) JPH08319486A (en)
CA (1) CA2173282A1 (en)
NO (1) NO961347L (en)

Also Published As

Publication number Publication date
JPH08319486A (en) 1996-12-03
CA2173282A1 (en) 1996-10-05
NO961347D0 (en) 1996-04-02

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