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SE9701546D0 - New process - Google Patents

New process

Info

Publication number
SE9701546D0
SE9701546D0 SE9701546A SE9701546A SE9701546D0 SE 9701546 D0 SE9701546 D0 SE 9701546D0 SE 9701546 A SE9701546 A SE 9701546A SE 9701546 A SE9701546 A SE 9701546A SE 9701546 D0 SE9701546 D0 SE 9701546D0
Authority
SE
Sweden
Prior art keywords
gas
superheated
salt
solidified
salt particles
Prior art date
Application number
SE9701546A
Other languages
Swedish (sv)
Inventor
Bengt Nilsson
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Priority to SE9701546A priority Critical patent/SE9701546D0/en
Publication of SE9701546D0 publication Critical patent/SE9701546D0/en
Priority to DE69839182T priority patent/DE69839182T2/en
Priority to AT98919692T priority patent/ATE387536T1/en
Priority to EP98919692A priority patent/EP0977919B1/en
Priority to PCT/SE1998/000637 priority patent/WO1998048102A1/en
Priority to US09/096,506 priority patent/US6062547A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/12—Combustion of pulp liquors
    • D21C11/125—Decomposition of the pulp liquors in reducing atmosphere or in the absence of oxidants, i.e. gasification or pyrolysis
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
    • D21C11/063—Treatment of gas streams comprising solid matter, e.g. the ashes resulting from the combustion of black liquor
    • D21C11/066—Separation of solid compounds from these gases; further treatment of recovered products

Landscapes

  • Paper (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treating Waste Gases (AREA)

Abstract

A process for separating alkali compounds entrained in a superheated gas which has been formed from partial combustion of spent liquor from a cellulose pulping process, where at least cooling medium is injected into a gas/salt smelt mixture in such an amount that the resulting mixture remains superheated and that salt particles are solidified or partially solidified, whereby the gas is lead away for separate cooling washing and the salt particles are dissolved in a receiving liquor.
SE9701546A 1994-06-22 1997-04-24 New process SE9701546D0 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9701546A SE9701546D0 (en) 1997-04-24 1997-04-24 New process
DE69839182T DE69839182T2 (en) 1997-04-24 1998-04-07 METHOD FOR SEPARATING ALKALIMETALS FROM CARBURIZED BLACK LIQUID
AT98919692T ATE387536T1 (en) 1997-04-24 1998-04-07 METHOD FOR SEPARATING ALKALINE METALS FROM CARIFIFIED BLACK LIQUID
EP98919692A EP0977919B1 (en) 1997-04-24 1998-04-07 Separating alkali metals from gasified black liquor
PCT/SE1998/000637 WO1998048102A1 (en) 1997-04-24 1998-04-07 Separating alkali metals from gasified black liquor
US09/096,506 US6062547A (en) 1994-06-22 1998-06-12 Quench vessel for recovering chemicals and energy from spent liquors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9701546A SE9701546D0 (en) 1997-04-24 1997-04-24 New process

Publications (1)

Publication Number Publication Date
SE9701546D0 true SE9701546D0 (en) 1997-04-24

Family

ID=20406712

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9701546A SE9701546D0 (en) 1994-06-22 1997-04-24 New process

Country Status (5)

Country Link
EP (1) EP0977919B1 (en)
AT (1) ATE387536T1 (en)
DE (1) DE69839182T2 (en)
SE (1) SE9701546D0 (en)
WO (1) WO1998048102A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE514277C2 (en) * 1999-06-07 2001-02-05 Kvaerner Chemrec Ab Device for gasification of waste water

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE448173B (en) * 1985-06-03 1987-01-26 Croon Inventor Ab PROCEDURE FOR THE RECOVERY OF CELLULOSA DISPOSAL CHEMICALS BY PYROLYSIS
SE9001957L (en) * 1990-05-31 1991-12-01 Chemrec Ab Purification of process gas from partial combustion of black liquor
SE470516B (en) * 1992-11-05 1994-06-27 Chemrec Ab Purifying gas from the gasification of black liquor
SE9402197L (en) * 1994-06-22 1995-07-24 Kvaerner Pulping Tech Procedure for washing and cooling gases in the black liquor gasification

Also Published As

Publication number Publication date
WO1998048102A1 (en) 1998-10-29
DE69839182T2 (en) 2009-02-19
ATE387536T1 (en) 2008-03-15
EP0977919A1 (en) 2000-02-09
EP0977919B1 (en) 2008-02-27
DE69839182D1 (en) 2008-04-10

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