SE9800190L - Process for working up alkaline condensate emanated in cellulose pulp preparation - Google Patents

Process for working up alkaline condensate emanated in cellulose pulp preparation

Info

Publication number
SE9800190L
SE9800190L SE9800190A SE9800190A SE9800190L SE 9800190 L SE9800190 L SE 9800190L SE 9800190 A SE9800190 A SE 9800190A SE 9800190 A SE9800190 A SE 9800190A SE 9800190 L SE9800190 L SE 9800190L
Authority
SE
Sweden
Prior art keywords
condensate
stripper
generated
cellulose pulp
emanated
Prior art date
Application number
SE9800190A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE511262C2 (en
SE511262E (en
SE9800190D0 (en
Inventor
Carl-Johan Alfthan
Christin Sjoelander
Original Assignee
Mo Och Domsjoe 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 Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Priority to SE9800190A priority Critical patent/SE511262E/en
Publication of SE9800190D0 publication Critical patent/SE9800190D0/en
Priority to AU24455/99A priority patent/AU2445599A/en
Priority to PCT/SE1999/000068 priority patent/WO1999037853A1/en
Publication of SE9800190L publication Critical patent/SE9800190L/en
Publication of SE511262C2 publication Critical patent/SE511262C2/en
Publication of SE511262E publication Critical patent/SE511262E/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
    • D21C11/10—Concentrating spent liquor by evaporation
    • 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

Landscapes

  • Paper (AREA)

Abstract

The present invention solves the problem concerning the emission of considerable quantities of nitrogen oxides in the combustion of gases generated from stripper gases and/or generated methanol, and relates to a method of processing condensate generated in the manufacture of cellulose pulp by alkaline digestion. The invention is characterized in that acid is added to the condensate prior to stripper treatment, so as to lower the pH of the condensate to </=7.5 leading to retainment of the major part of the original nitrogen content of the condensate, and thereafter recovering stripper gases generated by the stripper treatment in a conventional manner, and passing cleansed, nitrogen rich condensate to a consumer station.
SE9800190A 1998-01-23 1998-01-23 Process for working up alkaline condensate emanated in cellulose pulp preparation SE511262E (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9800190A SE511262E (en) 1998-01-23 1998-01-23 Process for working up alkaline condensate emanated in cellulose pulp preparation
AU24455/99A AU2445599A (en) 1998-01-23 1999-01-20 Method for processing of alkaline condensate emanating from the manufacture of cellulose pulp
PCT/SE1999/000068 WO1999037853A1 (en) 1998-01-23 1999-01-20 Method for processing of alkaline condensate emanating from the manufacture of cellulose pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9800190A SE511262E (en) 1998-01-23 1998-01-23 Process for working up alkaline condensate emanated in cellulose pulp preparation

Publications (4)

Publication Number Publication Date
SE9800190D0 SE9800190D0 (en) 1998-01-23
SE9800190L true SE9800190L (en) 1999-07-24
SE511262C2 SE511262C2 (en) 1999-09-06
SE511262E SE511262E (en) 2002-10-30

Family

ID=20409961

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800190A SE511262E (en) 1998-01-23 1998-01-23 Process for working up alkaline condensate emanated in cellulose pulp preparation

Country Status (3)

Country Link
AU (1) AU2445599A (en)
SE (1) SE511262E (en)
WO (1) WO1999037853A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE531478C2 (en) * 2007-11-26 2009-04-21 Processum Biorefinery Initiative Ab Process for the extraction of ammonium salt and methanol from liquid emanating from impure condensate resulting from cellulose pulp production
FI125337B (en) * 2010-10-18 2015-08-31 Andritz Oy Process and apparatus for separating impurities from liquids or vapors
EP3828336A1 (en) * 2019-11-27 2021-06-02 Mistab Innovation AB Method for purifying turpentine condensate from trs
FI20205547A1 (en) * 2020-05-27 2021-11-28 Valmet Technologies Oy A method for removing ammonia from non-condensable gases of a pulp mill

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2444645A1 (en) * 1978-12-18 1980-07-18 Du Pin Cellulose Removing terpene(s) from condensate of evaporated kraft liquor - by flocculation with an aluminium or iron salt (SW 21.7.80)
US4293322A (en) * 1980-04-23 1981-10-06 Helix Technology Corporation Distillative separation of carbon dioxide from hydrogen sulfide
DE4135763A1 (en) * 1991-07-04 1993-01-07 Krupp Koppers Gmbh PROCESS FOR THE TREATMENT OF NH (ARROW DOWN) 3 (ARROW DOWN) AND / OR H (ARROW DOWN) 2 (ARROW DOWN) AND S-CONTAINING PROCESS WASTE AND SODIUM SULFID-CONTAINING NATURAL LIQUE
SE503793C2 (en) * 1995-02-01 1996-09-09 Kvaerner Pulping Tech Process for the treatment of condensate

Also Published As

Publication number Publication date
AU2445599A (en) 1999-08-09
SE511262C2 (en) 1999-09-06
WO1999037853A1 (en) 1999-07-29
SE511262E (en) 2002-10-30
SE9800190D0 (en) 1998-01-23

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Legal Events

Date Code Title Description
NUG Patent has lapsed