TW237442B - process for separation of ethylbenzene or ethylbenzene/p-xylene from a xylene isomers mixture - Google Patents

process for separation of ethylbenzene or ethylbenzene/p-xylene from a xylene isomers mixture

Info

Publication number
TW237442B
TW237442B TW080109317A TW80109317A TW237442B TW 237442 B TW237442 B TW 237442B TW 080109317 A TW080109317 A TW 080109317A TW 80109317 A TW80109317 A TW 80109317A TW 237442 B TW237442 B TW 237442B
Authority
TW
Taiwan
Prior art keywords
xylene
ethylbenzene
separation
mixture
isomers mixture
Prior art date
Application number
TW080109317A
Other languages
Chinese (zh)
Inventor
Jiunn-Song Tarn
Original Assignee
Taiwan Styrene Mono Mer Co Ltd
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 Taiwan Styrene Mono Mer Co Ltd filed Critical Taiwan Styrene Mono Mer Co Ltd
Priority to TW080109317A priority Critical patent/TW237442B/en
Application granted granted Critical
Publication of TW237442B publication Critical patent/TW237442B/en

Links

Classifications

    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

Abstract

A process for separating ethylbenzene and p-xylene from a xylene isomers mixture, additional containing m-xylene and o-xylene, by selective adsorption of ethylbenzene and p-xylene on a silicalite absorbent is disclosed in the present invention, in which a compressed gaseous CO2 stream is used as a carrier for carrying a fixed amount of the mixture to the adsorbent bed for the selective adsorption, followed by a supercritical CO2 stream desorption of the adsorbed ethylbenzene and p-xylene from the adsorbent ethylbenzene and p-xylene from the adsorbent bed. A method for recycling the CO2 used therein is also disclosedby, which involves an isothermal and isobaric adsorption of the xylene isomer products from the effluent CO2 streams.
TW080109317A 1991-11-26 1991-11-26 process for separation of ethylbenzene or ethylbenzene/p-xylene from a xylene isomers mixture TW237442B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW080109317A TW237442B (en) 1991-11-26 1991-11-26 process for separation of ethylbenzene or ethylbenzene/p-xylene from a xylene isomers mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW080109317A TW237442B (en) 1991-11-26 1991-11-26 process for separation of ethylbenzene or ethylbenzene/p-xylene from a xylene isomers mixture

Publications (1)

Publication Number Publication Date
TW237442B true TW237442B (en) 1995-01-01

Family

ID=51400670

Family Applications (1)

Application Number Title Priority Date Filing Date
TW080109317A TW237442B (en) 1991-11-26 1991-11-26 process for separation of ethylbenzene or ethylbenzene/p-xylene from a xylene isomers mixture

Country Status (1)

Country Link
TW (1) TW237442B (en)

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