NO961347L - Method for removing aromatics from hydrocarbon vapor stream - Google Patents
Method for removing aromatics from hydrocarbon vapor streamInfo
- 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
Links
Landscapes
- 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enriched with aromatic hydrocarbons, and at least one liquid comprising extraction solvent and aromatic hydrocarbons is withdrawn from the lower portion of the extractive distillation column and at least a portion of the extracted liquid is then heated under such conditions that at least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.
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) |
-
1996
- 1996-04-02 JP JP10200996A patent/JPH08319486A/en active Pending
- 1996-04-02 NO NO961347A patent/NO961347L/en not_active Application Discontinuation
- 1996-04-02 CA CA 2173282 patent/CA2173282A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JPH08319486A (en) | 1996-12-03 |
CA2173282A1 (en) | 1996-10-05 |
NO961347D0 (en) | 1996-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR950016822A (en) | How to recover benzene from mixed hydrocarbons | |
BR8401744A (en) | ETHANOL SEPARATION PROCESS FROM AN ETHANOL CONTAINING SOLUTION | |
KR920700278A (en) | Solvent Extraction Method | |
CA2282632A1 (en) | Spent caustic (pre)treatment process | |
US8460517B2 (en) | Methods and apparatuses for steam addition to a reboiler coupled to an extractive distillation column for improved extractive distillation | |
MX167221B (en) | PROCESS TO SEPARATE NITROGEN FROM NATURAL GAS | |
US4177137A (en) | Aromatics extraction process | |
NO332970B1 (en) | Process for purifying an aqueous stream formed during a Fischer-Tropsch reaction | |
KR960014076A (en) | Method for producing pure benzene and pure toluene | |
US3763037A (en) | Aromatic hydrocarbon | |
US3544453A (en) | Process for the extraction and recovery of aromatic hydrocarbons | |
NO961347L (en) | Method for removing aromatics from hydrocarbon vapor stream | |
NO20020309D0 (en) | Process for separating and purifying an aqueous mixture of mainly acetic acid and formic acid | |
US3788980A (en) | Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock | |
US4306945A (en) | Extracting aromatic hydrocarbons from mixtures containing same | |
US4897182A (en) | Aromatic extraction process having improved water stripper | |
GB2141350B (en) | Evaporating a dissolved product and recovering a more volatile fraction of the solvent | |
US4419226A (en) | Recovery of aromatic hydrocarbons and a non-aromatic raffinate stream from a hydrocarbon charge stock | |
GB1271596A (en) | Process for the extraction of aromatic hydrocarbons from mixtures of aromatic and aliphatic hydrocarbons | |
US3560374A (en) | Aromatic extraction process | |
US5264117A (en) | Distillation of hydrocarbons | |
KR920009439A (en) | Process of bottom product of extractive distillation process to recover pure aromatics | |
KR930005948A (en) | Treatment process of bottom product of extractive distillation to obtain pure hydrocarbon | |
NO145537B (en) | PROCEDURE FOR AA Separate PURE AROMATIC HYDROCARBONES FROM HYDROCARBON MIXTURES CONTAINING AT LEAST 80% AROMATES | |
DK0779088T3 (en) | Apparatus and method for simultaneous distillation and extraction |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |