SE9903676L - Reduction of NOx - Google Patents

Reduction of NOx

Info

Publication number
SE9903676L
SE9903676L SE9903676A SE9903676A SE9903676L SE 9903676 L SE9903676 L SE 9903676L SE 9903676 A SE9903676 A SE 9903676A SE 9903676 A SE9903676 A SE 9903676A SE 9903676 L SE9903676 L SE 9903676L
Authority
SE
Sweden
Prior art keywords
nox
methanol
condensate
added
methanol column
Prior art date
Application number
SE9903676A
Other languages
Swedish (sv)
Other versions
SE9903676D0 (en
SE524106C2 (en
Inventor
Johan Olsson
Guido Zacchi
Original Assignee
Soedra Cell 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 Soedra Cell Ab filed Critical Soedra Cell Ab
Priority to SE9903676A priority Critical patent/SE524106C2/en
Publication of SE9903676D0 publication Critical patent/SE9903676D0/en
Publication of SE9903676L publication Critical patent/SE9903676L/en
Publication of SE524106C2 publication Critical patent/SE524106C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

An acidifying agent is added to the methanol column (17) used to remove ammonia from the condensate (1). A method for preparing sulfate pulp includes steps for reducing nitrogen oxide (NOx) emissions and obtaining a flow of ammonia-rich liquid by using a stripper (15) and a methanol column to purify the condensate, which generates a volatile methanol fraction. An acidifying agent is added to the methanol column.
SE9903676A 1999-10-13 1999-10-13 Purification of condensate from evaporator and cooker in sulfate pulping process, comprises addition of acidifying agent to methanol column used to remove ammonia SE524106C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9903676A SE524106C2 (en) 1999-10-13 1999-10-13 Purification of condensate from evaporator and cooker in sulfate pulping process, comprises addition of acidifying agent to methanol column used to remove ammonia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903676A SE524106C2 (en) 1999-10-13 1999-10-13 Purification of condensate from evaporator and cooker in sulfate pulping process, comprises addition of acidifying agent to methanol column used to remove ammonia

Publications (3)

Publication Number Publication Date
SE9903676D0 SE9903676D0 (en) 1999-10-13
SE9903676L true SE9903676L (en) 2001-04-14
SE524106C2 SE524106C2 (en) 2004-06-29

Family

ID=20417330

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903676A SE524106C2 (en) 1999-10-13 1999-10-13 Purification of condensate from evaporator and cooker in sulfate pulping process, comprises addition of acidifying agent to methanol column used to remove ammonia

Country Status (1)

Country Link
SE (1) SE524106C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0702610L (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
EP2396105B1 (en) * 2009-02-12 2018-08-22 A.H. Lundberg Systems Limited Methanol purification method and apparatus
FI20205547A1 (en) * 2020-05-27 2021-11-28 Valmet Technologies Oy A method for removing ammonia from non-condensable gases of a pulp mill

Also Published As

Publication number Publication date
SE9903676D0 (en) 1999-10-13
SE524106C2 (en) 2004-06-29

Similar Documents

Publication Publication Date Title
DE69836072D1 (en) METHOD FOR THE SELECTIVE DERIVATIZATION OF TAXANESE
ATE365340T1 (en) PHOTORESIST COMPOSITION SUITABLE FOR IMAGING WITH DEEP UV RADIATION AND IMAGING METHOD USING SAME
ATE322163T1 (en) SUBSTITUTED CYCLOPENTAN DERIVATIVES USEFUL AS NEURAMIDASE INHIBITORS
ATE328965T1 (en) AZO COMPOUNDS AND METHOD FOR PRODUCING THE SAME
DK1284927T3 (en) Process and apparatus for reducing nitric oxide
DK1301526T3 (en) Method of oxidation to produce the intermediate 6.alpha., 9alpha.-difluoro-11.beta., 17.alpha.-dihydroxy-16.alpha.-methyl-androst-1,4-dien-3-one 17.beta. -carboxylic
DE60209537D1 (en) NEW CRYSTALLINE FORMS OF MELOXICAM, THEIR MANUFACTURE AND METHOD FOR THEIR CONVERSION
BR0113877B1 (en) gaseous acid catalysis method and process for the manufacture of aldehydes from sugars.
DE60027341D1 (en) Process for the preparation of ammonia and ammonia synthesis catalyst
SE9903676L (en) Reduction of NOx
ATE247645T1 (en) NEW PIPERAZINYLALKYLTHIOPYRIMIDINES DERIVATIVES, PHARMACEUTICAL COMPOSITIONS CONTAINING SAME AND METHOD FOR THE PRODUCTION THEREOF
DK1161298T3 (en) Process for Passivation of Pyrophoric Catalysts
DE50313406D1 (en) METHOD FOR REGENERATING A HYDRAULIC CATALYST
DE59910593D1 (en) METHOD FOR PRODUCING AMINES
BR0213220A (en) Process of preparing interaction compounds of a poorly soluble active substance in an aqueous medium with a porous support, and interaction interaction compound of a poorly soluble active substance in an aqueous medium on an aqueous support
SG50646A1 (en) Purification of crude(meth) acrylic acid
ATE252543T1 (en) METHOD FOR PRODUCING CHIRAL (S)-2,3-DISUBSTITUTED 1-PROPYLAMIN DERIVATIVES
ATE275149T1 (en) METHOD FOR PRODUCING TAXAND DERIVATIVES
EP0862939A3 (en) Flue gas treating process and system
DE50112449D1 (en) PROCESS FOR THE PREPARATION OF 3,3-DIARYLPROPYLAMINES
EA200200971A1 (en) METHOD OF OBTAINING CYTALOPRAMA
SE0000055D0 (en) Novel process
FI20001426A0 (en) Method for performing the A / D conversion and the A / D converter
ES2179756A1 (en) Method for obtaining azaerythromycin
DE59903779D1 (en) METHOD FOR PRODUCING TRION-BIS (OXIMETHER) DERIVATIVES AND TRION-MONO AND TRION-BIS (OXIMETHER) DERIVATIVES AVAILABLE THEREFOR

Legal Events

Date Code Title Description
NUG Patent has lapsed