SE9903671L - Process and apparatus for the extraction of chemicals in connection with gasification of residues from pulp production - Google Patents

Process and apparatus for the extraction of chemicals in connection with gasification of residues from pulp production

Info

Publication number
SE9903671L
SE9903671L SE9903671A SE9903671A SE9903671L SE 9903671 L SE9903671 L SE 9903671L SE 9903671 A SE9903671 A SE 9903671A SE 9903671 A SE9903671 A SE 9903671A SE 9903671 L SE9903671 L SE 9903671L
Authority
SE
Sweden
Prior art keywords
gasification
electric filter
filter ash
support fuel
returned
Prior art date
Application number
SE9903671A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9903671D0 (en
SE518735C2 (en
Inventor
Bengt Nilsson
Original Assignee
Kvaerner Chemrec 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 Kvaerner Chemrec Ab filed Critical Kvaerner Chemrec Ab
Priority to SE9903671A priority Critical patent/SE518735C2/en
Publication of SE9903671D0 publication Critical patent/SE9903671D0/en
Priority to PCT/SE2000/001979 priority patent/WO2001027384A1/en
Publication of SE9903671L publication Critical patent/SE9903671L/en
Publication of SE518735C2 publication Critical patent/SE518735C2/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)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Method for recovering chemicals in conjunction with gasification of residual products from pulp production, the said gasification taking place under understoichiometric conditions, with formation of at least one phase of solid and/or molten material and at least one phase of combustible gaseous material. The principal gasification material supplied for gasification is a mixture of electric filter ash from a recovery boiler process and a support fuel in fluid form, which consists of one or more liquids from the group comprising sulphate soap, tall oil, turpentine or methanol, where the ratio between the electric filter ash and the support fuel is such that there are essentially equal quantities. By this means, it is possible to achieve a sufficiently high temperature to reduce the said sulphur-containing material. The invention means that a product liquid in the form of white liquor, which can be returned to the pulp process, can be obtained without intermediate causticization, while at the same time a considerable waste problem is solved and sodium and/or sulphur compounds are returned to the process. The invention also relates to an arrangement for mixing liquid support fuel with the electric filter ash.
SE9903671A 1999-10-13 1999-10-13 Process and apparatus for the extraction of chemicals in connection with gasification of residues from pulp production SE518735C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9903671A SE518735C2 (en) 1999-10-13 1999-10-13 Process and apparatus for the extraction of chemicals in connection with gasification of residues from pulp production
PCT/SE2000/001979 WO2001027384A1 (en) 1999-10-13 2000-10-12 Method and arrangement for recovering chemicals from fly ash in a gasification process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903671A SE518735C2 (en) 1999-10-13 1999-10-13 Process and apparatus for the extraction of chemicals in connection with gasification of residues from pulp production

Publications (3)

Publication Number Publication Date
SE9903671D0 SE9903671D0 (en) 1999-10-13
SE9903671L true SE9903671L (en) 2001-04-14
SE518735C2 SE518735C2 (en) 2002-11-12

Family

ID=20417327

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903671A SE518735C2 (en) 1999-10-13 1999-10-13 Process and apparatus for the extraction of chemicals in connection with gasification of residues from pulp production

Country Status (2)

Country Link
SE (1) SE518735C2 (en)
WO (1) WO2001027384A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512443C2 (en) * 1999-04-01 2000-03-20 Kvaerner Chemrec Ab Process for cooling solid and gaseous material in gasification of effluent
SE0004185D0 (en) * 2000-11-15 2000-11-15 Nykomb Synergetics B V New process
FI20106204L (en) * 2010-11-16 2012-05-17 Vapo Oy Procedure for utilizing distillate fractions obtained during the distillation of pine oil in a BtL or cellulose factory
SE535947C2 (en) * 2011-04-26 2013-03-05 Chemrec Ab Gasification of alkali-containing energy-rich aqueous solutions from pulp mills

Family Cites Families (5)

* 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
SE465039B (en) * 1989-11-23 1991-07-15 Chemrec Ab MADE TO MAKE SUBSTANCES WITH HIGH SULFIDITY BEFORE SULFAT PREPARATION
FI914586A (en) * 1991-09-27 1993-03-28 Ahlstroem Oy FOERFARANDE FOER FOERMINSKNING AV ASKLASTEN AV EN CELLUFABRIKS PANNANLAEGGNING
SE468600B (en) * 1991-12-16 1993-02-15 Chemrec Ab SET TO MAKE HIGH SULFIDITY COOKIES
FI98381B (en) * 1993-07-23 1997-02-28 Tampella Power Oy Process for controlling the sulfur-sodium ratio in a soda boiler

Also Published As

Publication number Publication date
WO2001027384A1 (en) 2001-04-19
SE9903671D0 (en) 1999-10-13
SE518735C2 (en) 2002-11-12

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Legal Events

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