SE0003391L - Bleaching process and systems therefore - Google Patents

Bleaching process and systems therefore

Info

Publication number
SE0003391L
SE0003391L SE0003391A SE0003391A SE0003391L SE 0003391 L SE0003391 L SE 0003391L SE 0003391 A SE0003391 A SE 0003391A SE 0003391 A SE0003391 A SE 0003391A SE 0003391 L SE0003391 L SE 0003391L
Authority
SE
Sweden
Prior art keywords
ozone
oxygen
bleaching
pulp
systems
Prior art date
Application number
SE0003391A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE0003391D0 (en
Inventor
Monica Bokstroem
Roland Edstroem
Original Assignee
Metso Paper Inc
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 Metso Paper Inc filed Critical Metso Paper Inc
Priority to SE0003391A priority Critical patent/SE0003391L/en
Publication of SE0003391D0 publication Critical patent/SE0003391D0/en
Priority to PCT/SE2001/002002 priority patent/WO2002025008A1/en
Priority to AU2001290420A priority patent/AU2001290420A1/en
Publication of SE0003391L publication Critical patent/SE0003391L/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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Abstract

The present invention relates to a method and a system for bleaching of pulp with ozone wherein oxygen is recycled and concentrated. The system comprises an ozone generator (2) for the providing of ozone-containing oxygen; a reactor (3) for bleaching of the pulp; an ozone destruction unit (5) for the destruction of ozone; and an oxygen concentration unit (5) for concentrating oxygen-rich gas, which concentration unit makes use of vacuum- and/or pressure swing adsorption technology and/or membrane technology.
SE0003391A 2000-09-22 2000-09-22 Bleaching process and systems therefore SE0003391L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0003391A SE0003391L (en) 2000-09-22 2000-09-22 Bleaching process and systems therefore
PCT/SE2001/002002 WO2002025008A1 (en) 2000-09-22 2001-09-19 Process and system for bleaching pulp with ozone wherein oxygen-rich gas is recycled
AU2001290420A AU2001290420A1 (en) 2000-09-22 2001-09-19 Process and system for bleaching pulp with ozone wherein oxygen-rich gas is recycled

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0003391A SE0003391L (en) 2000-09-22 2000-09-22 Bleaching process and systems therefore

Publications (2)

Publication Number Publication Date
SE0003391D0 SE0003391D0 (en) 2000-09-22
SE0003391L true SE0003391L (en) 2002-03-23

Family

ID=20281121

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0003391A SE0003391L (en) 2000-09-22 2000-09-22 Bleaching process and systems therefore

Country Status (3)

Country Link
AU (1) AU2001290420A1 (en)
SE (1) SE0003391L (en)
WO (1) WO2002025008A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE1150015A1 (en) * 2011-01-12 2012-07-13 Wallenius Water Ab Ozone bleaching of pulp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632937A1 (en) * 1986-09-27 1988-03-31 Bbc Brown Boveri & Cie METHOD FOR PRODUCING OZONE
FI883026A (en) * 1987-06-25 1988-12-26 Voest Alpine Ind Anlagen FOERFARANDE FOER FRAMSTAELLNING AV RENT SYRE FOER DAEREFTER FOELJANDE FRAMSTAELLNING AV OZON.
AT392256B (en) * 1989-06-26 1991-02-25 Voest Alpine Ind Anlagen METHOD FOR PRODUCING OXYGEN AND / OR OZONE
WO1993018226A1 (en) * 1992-03-02 1993-09-16 Kamyr, Inc. Combined ozone destruction and fiber scrubbing in paper pulp mills
CA2078276C (en) * 1992-09-15 2004-05-25 Derek Hornsey Recovery of oxygen-rich gas from ozone bleaching processes

Also Published As

Publication number Publication date
AU2001290420A1 (en) 2002-04-02
WO2002025008A1 (en) 2002-03-28
SE0003391D0 (en) 2000-09-22

Similar Documents

Publication Publication Date Title
ATE84242T1 (en) INTEGRATED PRESSURE SWING ADSORPTION/MEMBRANE SEPARATION PROCESS.
TW257688B (en) Microfiltration enhanced reverse osmosis for water treatment
NO995170L (en) Autothermal reactor comprising an oxygen ion permeable, compact membrane and process using the autothermal reactor in synthesis gas production
NO951941L (en) Catalytic process
BR0105239A (en) Selective microporous membrane for selected gas; and; process of preparing a selective microporous membrane for selected gas
DK1268350T3 (en) Water purification system and method
SE9503220D0 (en) Process for removing nitrogen oxides from the flue gases in a cellulose plant
CA2301371A1 (en) Process for bleaching lignocellulose pulp
WO1994023118A3 (en) Bleaching recycled pulp with a reductive-oxidative sequence
NO973947L (en) Process for membrane treatment of chlorine-containing gases
ES2102924A1 (en) Purification of waste streams
SE0003391D0 (en) Bleaching process and systems therefore
FI99152B (en) With hydrogen peroxide enhanced oxygen delignification
YU23892A (en) PROCESS FOR BLEACHING CHEMICAL PAPER PAPER AND APPLICATION OF THIS PROCEDURE FOR BLEACHING KRAFT PULP
KR970006197A (en) Ozone treatment facility for purification treatment
WO2002043838A3 (en) Method for the treatment of waste gas from a cellulose plant
SE9601709L (en) Treatment of filtrate in peroxide bleaching of pulp
ATE14565T1 (en) OZONIZATION SYSTEM FOR DISINFECTION OF DRINKING WATER.
KR900012836A (en) Method for decomposing hypochlorite in chlorate solution
AU6695896A (en) Process for regeneration of an aqueous process liquid of the amine-oxide process
ID28478A (en) DESIGNING CONSISTENCY PULP ON MEDIUM WITH OZONE WITHOUT HIGH MIXING SHEAR
IT1298142B1 (en) Hyperpure hydrogen peroxide production using reverse osmosis unit, used for processing semiconductors
IT1301745B1 (en) Hyperpure hydrogen peroxide production using reverse osmosis unit, used for processing semiconductors
TH43798A (en) Systems and Methods for Sugar Extraction

Legal Events

Date Code Title Description
NAV Patent application has lapsed