WO2000061860A3 - A method for reducing the risk for coatings and cloggings of heat absorbing surfaces present above the black liquor sprayers in a recovery boiler - Google Patents

A method for reducing the risk for coatings and cloggings of heat absorbing surfaces present above the black liquor sprayers in a recovery boiler Download PDF

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Publication number
WO2000061860A3
WO2000061860A3 PCT/SE2000/000710 SE0000710W WO0061860A3 WO 2000061860 A3 WO2000061860 A3 WO 2000061860A3 SE 0000710 W SE0000710 W SE 0000710W WO 0061860 A3 WO0061860 A3 WO 0061860A3
Authority
WO
WIPO (PCT)
Prior art keywords
reducing
black liquor
recovery boiler
cloggings
coatings
Prior art date
Application number
PCT/SE2000/000710
Other languages
French (fr)
Other versions
WO2000061860A2 (en
Inventor
Kent K Sandquist
Original Assignee
Excelentec Holding Ab
Aga Ab
Kent K Sandquist
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 Excelentec Holding Ab, Aga Ab, Kent K Sandquist filed Critical Excelentec Holding Ab
Priority to AU44446/00A priority Critical patent/AU4444600A/en
Publication of WO2000061860A2 publication Critical patent/WO2000061860A2/en
Publication of WO2000061860A3 publication Critical patent/WO2000061860A3/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

Abstract

A method for reducing the risk for coatings and cloggings of heat absorbing surfaces present above the black liquor sprayers in a recovery boiler, whereby the oxygen concentration in the recovery boiler is increased on at least one level above said black liquor sprayers, for the purpose of increasing the combustion speed for pyrolytic gases and thereby reducing the gas temperature prior to its entrance into the superheater area.
PCT/SE2000/000710 1999-04-14 2000-04-14 A method for reducing the risk for coatings and cloggings of heat absorbing surfaces present above the black liquor sprayers in a recovery boiler WO2000061860A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU44446/00A AU4444600A (en) 1999-04-14 2000-04-14 A method at recovery boiler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9901331A SE9901331L (en) 1999-04-14 1999-04-14 Soda boiler procedure
SE9901331-0 1999-04-14

Publications (2)

Publication Number Publication Date
WO2000061860A2 WO2000061860A2 (en) 2000-10-19
WO2000061860A3 true WO2000061860A3 (en) 2001-02-08

Family

ID=20415213

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2000/000710 WO2000061860A2 (en) 1999-04-14 2000-04-14 A method for reducing the risk for coatings and cloggings of heat absorbing surfaces present above the black liquor sprayers in a recovery boiler

Country Status (4)

Country Link
AU (1) AU4444600A (en)
CO (1) CO5700179A1 (en)
SE (1) SE9901331L (en)
WO (1) WO2000061860A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823710A (en) * 1987-10-13 1989-04-25 Canadian Liquid Air Ltd.- Air Liquide Canada Ltee. Non-peripheral blowing of oxygen-containing gas in steam generating boilers
US4857282A (en) * 1988-01-13 1989-08-15 Air Products And Chemicals, Inc. Combustion of black liquor
US5007354A (en) * 1989-02-20 1991-04-16 Oy Tampella Ab Combustion air supply system for a recovery furnace
EP0905308A1 (en) * 1997-09-26 1999-03-31 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Methods of improving productivity of black liquor recovery boilers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823710A (en) * 1987-10-13 1989-04-25 Canadian Liquid Air Ltd.- Air Liquide Canada Ltee. Non-peripheral blowing of oxygen-containing gas in steam generating boilers
US4857282A (en) * 1988-01-13 1989-08-15 Air Products And Chemicals, Inc. Combustion of black liquor
US5007354A (en) * 1989-02-20 1991-04-16 Oy Tampella Ab Combustion air supply system for a recovery furnace
EP0905308A1 (en) * 1997-09-26 1999-03-31 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Methods of improving productivity of black liquor recovery boilers

Also Published As

Publication number Publication date
SE9901331D0 (en) 1999-04-14
AU4444600A (en) 2000-11-14
CO5700179A1 (en) 2006-11-30
WO2000061860A2 (en) 2000-10-19
SE9901331L (en) 2000-10-15

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