SE0200606D0 - Glycol recovery - Google Patents

Glycol recovery

Info

Publication number
SE0200606D0
SE0200606D0 SE0200606A SE0200606A SE0200606D0 SE 0200606 D0 SE0200606 D0 SE 0200606D0 SE 0200606 A SE0200606 A SE 0200606A SE 0200606 A SE0200606 A SE 0200606A SE 0200606 D0 SE0200606 D0 SE 0200606D0
Authority
SE
Sweden
Prior art keywords
glycol
reverse osmosis
increase
glycol recovery
glycol concentration
Prior art date
Application number
SE0200606A
Other languages
Swedish (sv)
Other versions
SE525028C2 (en
SE0200606L (en
Inventor
Tibor Nemeth
Jonas Persson
Original Assignee
Europamobil Vattenrening Ab
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 Europamobil Vattenrening Ab filed Critical Europamobil Vattenrening Ab
Priority to SE0200606A priority Critical patent/SE525028C2/en
Publication of SE0200606D0 publication Critical patent/SE0200606D0/en
Publication of SE0200606L publication Critical patent/SE0200606L/en
Publication of SE525028C2 publication Critical patent/SE525028C2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/022—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/58—Multistep processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
    • C07C31/18—Polyhydroxylic acyclic alcohols
    • C07C31/20—Dihydroxylic alcohols
    • C07C31/202—Ethylene glycol
    • 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
    • Y02P20/10—Process efficiency
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

At least one reverse osmosis step (4, 5) is used to increase glycol concentration prior to an evaporation step (6) in which water is removed. A method for recovering glycol from a mixture predominantly comprising glycol and water comprises the following steps : (a) at least one reverse osmosis step in order to increase glycol concentration to a suitable level ; and (b) evaporation until the glycol concentration reaches a standard use level.
SE0200606A 2002-02-27 2002-02-27 Glycol recovery method, especially for glycol used to deice aircraft or runways, involves reverse osmosis step SE525028C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0200606A SE525028C2 (en) 2002-02-27 2002-02-27 Glycol recovery method, especially for glycol used to deice aircraft or runways, involves reverse osmosis step

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0200606A SE525028C2 (en) 2002-02-27 2002-02-27 Glycol recovery method, especially for glycol used to deice aircraft or runways, involves reverse osmosis step

Publications (3)

Publication Number Publication Date
SE0200606D0 true SE0200606D0 (en) 2002-02-27
SE0200606L SE0200606L (en) 2003-08-28
SE525028C2 SE525028C2 (en) 2004-11-16

Family

ID=20287117

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0200606A SE525028C2 (en) 2002-02-27 2002-02-27 Glycol recovery method, especially for glycol used to deice aircraft or runways, involves reverse osmosis step

Country Status (1)

Country Link
SE (1) SE525028C2 (en)

Also Published As

Publication number Publication date
SE525028C2 (en) 2004-11-16
SE0200606L (en) 2003-08-28

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Legal Events

Date Code Title Description
NUG Patent has lapsed