WO2016094752A3 - Processes for para-xylene adsorptive separation - Google Patents

Processes for para-xylene adsorptive separation Download PDF

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Publication number
WO2016094752A3
WO2016094752A3 PCT/US2015/065155 US2015065155W WO2016094752A3 WO 2016094752 A3 WO2016094752 A3 WO 2016094752A3 US 2015065155 W US2015065155 W US 2015065155W WO 2016094752 A3 WO2016094752 A3 WO 2016094752A3
Authority
WO
WIPO (PCT)
Prior art keywords
para
processes
desorbent
xylene
benzene
Prior art date
Application number
PCT/US2015/065155
Other languages
French (fr)
Other versions
WO2016094752A2 (en
Inventor
James A. Johnson
Rodrigo LOBO
Original Assignee
Uop Llc
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 Uop Llc filed Critical Uop Llc
Publication of WO2016094752A2 publication Critical patent/WO2016094752A2/en
Publication of WO2016094752A3 publication Critical patent/WO2016094752A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
    • C07C7/13—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2729—Changing the branching point of an open chain or the point of substitution on a ring
    • C07C5/2732—Catalytic processes
    • C07C5/2737—Catalytic processes with crystalline alumino-silicates, e.g. molecular sieves
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/65—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38

Abstract

Processes for producing a high purity para-xylene stream from a mixed xylene stream. A separation unit uses benzene as a desorbent with temperature, water content, cation ratio on an adsorbent, concentration, or a combination thereof being controlled to facilitate benzene efficiently being used as a desorbent. The benzene as desorbent can be produced in an ethylbenzene dealkylation process. Also, a raffinate stream from the separation unit can be subjected to a liquid phase isomerization to increase the para-xylene production.
PCT/US2015/065155 2014-12-12 2015-12-11 Processes for para-xylene adsorptive separation WO2016094752A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462091123P 2014-12-12 2014-12-12
US62/091,123 2014-12-12

Publications (2)

Publication Number Publication Date
WO2016094752A2 WO2016094752A2 (en) 2016-06-16
WO2016094752A3 true WO2016094752A3 (en) 2016-08-11

Family

ID=56108375

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/065155 WO2016094752A2 (en) 2014-12-12 2015-12-11 Processes for para-xylene adsorptive separation

Country Status (1)

Country Link
WO (1) WO2016094752A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10519082B2 (en) * 2016-12-20 2019-12-31 Uop Llc Removal of feed treatment units in aromatics complex designs
US10427993B2 (en) 2017-08-31 2019-10-01 Uop Llc Process for recovering benzene and fuel gas in an aromatics complex
US10793493B2 (en) 2017-08-31 2020-10-06 Uop Llc Process for recovering benzene and fuel gas in an aromatics complex
CN112573986B (en) * 2019-09-29 2023-05-05 中国石油化工股份有限公司 From C 8 Method for producing paraxylene from aromatic hydrocarbon
CN113461471B (en) * 2020-03-30 2023-10-10 中国石油化工股份有限公司 Production device and production process of paraxylene
CN114805006B (en) * 2022-05-13 2023-07-07 中国石油大学(北京) Method and device for separating paraxylene from xylene mixture

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009235248A (en) * 2008-03-27 2009-10-15 Toray Ind Inc Method for producing aromatic hydrocarbon having six to eight carbon atoms
JP2010208948A (en) * 2009-03-06 2010-09-24 Mitsui Chemicals Inc Method for producing aromatic hydrocarbon and catalyst used in the method
RU2413712C2 (en) * 2006-05-18 2011-03-10 Юоп Ллк Compound method of producing aromatic hydrocarbons

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2413712C2 (en) * 2006-05-18 2011-03-10 Юоп Ллк Compound method of producing aromatic hydrocarbons
JP2009235248A (en) * 2008-03-27 2009-10-15 Toray Ind Inc Method for producing aromatic hydrocarbon having six to eight carbon atoms
JP2010208948A (en) * 2009-03-06 2010-09-24 Mitsui Chemicals Inc Method for producing aromatic hydrocarbon and catalyst used in the method

Also Published As

Publication number Publication date
WO2016094752A2 (en) 2016-06-16

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