CA2258785A1 - Process for recovering processing liquids - Google Patents

Process for recovering processing liquids

Info

Publication number
CA2258785A1
CA2258785A1 CA002258785A CA2258785A CA2258785A1 CA 2258785 A1 CA2258785 A1 CA 2258785A1 CA 002258785 A CA002258785 A CA 002258785A CA 2258785 A CA2258785 A CA 2258785A CA 2258785 A1 CA2258785 A1 CA 2258785A1
Authority
CA
Canada
Prior art keywords
processing liquid
residuum
temperature
volatile components
less volatile
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002258785A
Other languages
French (fr)
Other versions
CA2258785C (en
Inventor
G. Raymond Abry
S. Todd Beasley
W. Stephen Carlson
G. Stephen Kresnyak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CCR Technologies Ltd
Original Assignee
Canadian Chemical Reclaiming Ltd
G. Raymond Abry
S. Todd Beasley
W. Stephen Carlson
G. Stephen Kresnyak
Ccr Technologies 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
Priority claimed from US08/846,036 external-priority patent/US5993608A/en
Application filed by Canadian Chemical Reclaiming Ltd, G. Raymond Abry, S. Todd Beasley, W. Stephen Carlson, G. Stephen Kresnyak, Ccr Technologies Ltd. filed Critical Canadian Chemical Reclaiming Ltd
Publication of CA2258785A1 publication Critical patent/CA2258785A1/en
Application granted granted Critical
Publication of CA2258785C publication Critical patent/CA2258785C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Physical Water Treatments (AREA)

Abstract

A process for recovering processing liquids such as gas-treating liquids wherein a feed mixture containing the processing liquid and components or impurities that are more volatile and less volatile than the processing liquid is initially heated in a first heating zone to a temperature sufficient to volatilize at least one of the more volatile components and a portion of the processing liquid, the temperature being maintained below the decomposition temperature of the processing liquid to produce a vapor stream containing the less volatile component and the vaporized portion of the processing liquid and a residuum containing the processing liquid, a reduced concentration of the more volatile components and the less volatile components the vapor stream being separated from the residuum in a first separation zone, a portion of the residuum being passed through a second heating zone at a temperature below the decomposition temperature of the processing liquid to produce a first heated recycle stream, the heated recycle stream being admixed with the feed mixture to effect the initial heating of the feed misture, the concentration of the less volatile components in the residuum being reduced, preferably on a continuous basis, any processing liquid present in the vapor stream being recovered for further use.
CA002258785A 1997-04-25 1997-05-14 Process for recovering processing liquids Expired - Lifetime CA2258785C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/846,036 1997-04-25
US08/846,036 US5993608A (en) 1997-04-25 1997-04-25 Process for recovering processing liquids
PCT/IB1997/000820 WO1998048920A1 (en) 1997-04-25 1997-05-14 Process for recovering processing liquids

Publications (2)

Publication Number Publication Date
CA2258785A1 true CA2258785A1 (en) 1998-11-05
CA2258785C CA2258785C (en) 2005-11-29

Family

ID=35520660

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002258785A Expired - Lifetime CA2258785C (en) 1997-04-25 1997-05-14 Process for recovering processing liquids

Country Status (1)

Country Link
CA (1) CA2258785C (en)

Also Published As

Publication number Publication date
CA2258785C (en) 2005-11-29

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20170515