WO2003020678A3 - Method of separating dimethyl ether from an olefin stream - Google Patents

Method of separating dimethyl ether from an olefin stream Download PDF

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Publication number
WO2003020678A3
WO2003020678A3 PCT/US2002/027146 US0227146W WO03020678A3 WO 2003020678 A3 WO2003020678 A3 WO 2003020678A3 US 0227146 W US0227146 W US 0227146W WO 03020678 A3 WO03020678 A3 WO 03020678A3
Authority
WO
WIPO (PCT)
Prior art keywords
dimethyl ether
stream
olefin stream
olefin
separating dimethyl
Prior art date
Application number
PCT/US2002/027146
Other languages
French (fr)
Other versions
WO2003020678A2 (en
Inventor
James R Lattner
David R Lumgair Jr
Jeffrey A Kabin
Michael P Nicoletti
Original Assignee
Exxonmobil Chem Patents Inc
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
Priority claimed from US09/943,695 external-priority patent/US6559248B2/en
Priority claimed from US10/184,389 external-priority patent/US6844480B2/en
Application filed by Exxonmobil Chem Patents Inc filed Critical Exxonmobil Chem Patents Inc
Priority to AU2002332668A priority Critical patent/AU2002332668A1/en
Publication of WO2003020678A2 publication Critical patent/WO2003020678A2/en
Publication of WO2003020678A3 publication Critical patent/WO2003020678A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/02—Alkenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/005—Processes comprising at least two steps in series
    • 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
    • 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)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

This invention is directed to a method of removing dimethyl ether from an olefin stream. Dimethyl ether is removed from the olefin stream by first separating the olefin stream into a first stream comprising dimethyl ether and lighter boiling point compounds, and a second stream comprising C4+ olefin and higher boiling point hydrocarbons. The dimethyl ether is then separated from the first stream using extractive distillation.
PCT/US2002/027146 2001-08-31 2002-08-15 Method of separating dimethyl ether from an olefin stream WO2003020678A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002332668A AU2002332668A1 (en) 2001-08-31 2002-08-15 Method of separating dimethyl ether from an olefin stream

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09/943,695 US6559248B2 (en) 2001-08-31 2001-08-31 Process of removing contaminants from an olefin stream using extractive distillation
US09/943,695 2001-08-31
US10/184,389 US6844480B2 (en) 2001-07-02 2002-06-27 Method of separating dimethyl ether from an olefin stream
US10/184,389 2002-06-27

Publications (2)

Publication Number Publication Date
WO2003020678A2 WO2003020678A2 (en) 2003-03-13
WO2003020678A3 true WO2003020678A3 (en) 2003-06-05

Family

ID=26880100

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/027146 WO2003020678A2 (en) 2001-08-31 2002-08-15 Method of separating dimethyl ether from an olefin stream

Country Status (2)

Country Link
AU (1) AU2002332668A1 (en)
WO (1) WO2003020678A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7074971B2 (en) 2003-03-06 2006-07-11 Exxonmobil Chemical Patents Inc. Recovery of ethylene and propylene from a methanol to olefin reaction system
US7214846B2 (en) * 2003-08-06 2007-05-08 Exxonmobil Chemical Patents Inc. Recovery of ethylene and propylene from a methanol to olefin reaction system
US20050209469A1 (en) * 2004-03-22 2005-09-22 Shutt John R Converting propylene in an oxygenate-contaminated propylene stream to non-polymerization derivative products
US8058498B2 (en) 2004-10-29 2011-11-15 Sandra Jensen Device for removing oxygen-containing organic compounds from mixtures of various hydrocarbon compounds
RU2461536C2 (en) * 2007-03-28 2012-09-20 Эксонмобил Кемикэл Пейтентс Инк. Recycling dimethyl ether in oxygenate-to-olefin reaction system
EP2338865A1 (en) 2009-12-22 2011-06-29 Total Petrochemicals Research Feluy Process for removing oxygenated contaminants from an hydrocarbon stream
EP2338864A1 (en) 2009-12-22 2011-06-29 Total Petrochemicals Research Feluy Process for removing oxygenated contaminants from an hydrocarbon stream
DE102010022138A1 (en) 2010-05-20 2011-11-24 Lurgi Gmbh Process and plant for the production of low-oxygen-content olefin streams
US9012713B2 (en) 2012-12-18 2015-04-21 Shell Oil Company Process for removing oxygenate from an olefin stream
US9115037B2 (en) 2012-12-28 2015-08-25 Shell Oil Company Process for removing oxygenate from an olefin stream
US8987540B2 (en) 2012-12-28 2015-03-24 Shell Oil Company Process for removing oxygenate from an olefin stream
US9115103B2 (en) 2012-12-28 2015-08-25 Shell Oil Company Process for removing oxygenate from an olefin stream
CA2928244A1 (en) * 2013-10-31 2015-05-07 Shell Internationale Research Maatschappij B.V. Process for converting oxygenates to olefins
CN106748619B (en) * 2016-12-15 2019-08-09 惠生工程（中国）有限公司 A kind of technique refining propane from the feed stream comprising propane and dimethyl ether

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5609734A (en) * 1993-11-05 1997-03-11 Institut Francais Du Petrole Combined distillation and permeation process for the separation of oxygenated compounds from hydrocarbons and use thereof in etherification

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5609734A (en) * 1993-11-05 1997-03-11 Institut Francais Du Petrole Combined distillation and permeation process for the separation of oxygenated compounds from hydrocarbons and use thereof in etherification

Also Published As

Publication number Publication date
WO2003020678A2 (en) 2003-03-13
AU2002332668A1 (en) 2003-03-18

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