FI88149B - Foerfarande foer minskning av kvaeveoxidemissioner - Google Patents

Foerfarande foer minskning av kvaeveoxidemissioner Download PDF

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Publication number
FI88149B
FI88149B FI894290A FI894290A FI88149B FI 88149 B FI88149 B FI 88149B FI 894290 A FI894290 A FI 894290A FI 894290 A FI894290 A FI 894290A FI 88149 B FI88149 B FI 88149B
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FI
Finland
Prior art keywords
decomposition
combustion
ammonia
unit
residence time
Prior art date
Application number
FI894290A
Other languages
English (en)
Finnish (fi)
Other versions
FI894290A0 (fi
FI894290A (fi
FI88149C (sv
Inventor
Leif Hjoernevik
Oeystein Nirisen
Erik Fareid
Gunnar Kongshaug
Original Assignee
Norsk Hydro As
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19891252&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI88149(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Norsk Hydro As filed Critical Norsk Hydro As
Publication of FI894290A0 publication Critical patent/FI894290A0/fi
Publication of FI894290A publication Critical patent/FI894290A/fi
Publication of FI88149B publication Critical patent/FI88149B/fi
Application granted granted Critical
Publication of FI88149C publication Critical patent/FI88149C/sv

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)
  • Catalysts (AREA)
  • Earth Drilling (AREA)
  • Measuring Volume Flow (AREA)
  • Amplifiers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (4)

1. Förfarande för reducering av dikväveoxid, vilken bildas t.ex. vid katalytisk förbränning av ammoniak och 5 syre tili kväveoxider, vilka därefter avkyls i en värme-ätervinningsenhet och sedan absorberas i vatten och/eller svag kväveoxid, kännetecknat därav, att de varma förbränningsgaserna ges en retentionstid av 0,1 - 3 sekunder innan de avkyls. 10
2. Förfarande enligt patentkravet 1, känne tecknat därav, att den heta gasblandningen som upp-stätt vid den katalytiska förbränningen av ammoniak ges en retentionstid av 0,5 - 2 sekunder innan den avkyls i vär-meätervinningsenheten. 15
3. Förfarande enligt patentkravet 1, känne tecknat därav, att förbränningsgaserna bringas i kontakt med en metall- eller metalloxidkatalyt för selek-tiv nedbrytning av N20.
4. Förfarande enligt patentkravet 1, k ä n n e - 20 tecknat därav, att gaserna som avlägsnas frän ab-sorptionsenheten bringas i kontakt med metall- eller me-talloxidkatalyten för selektiv nedbrytning av N20.
FI894290A 1988-09-16 1989-09-12 Förfarande för minskning av kväveoxidemissioner FI88149C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO884147A NO165539C (no) 1988-09-16 1988-09-16 Fremgangsmaate ved reduksjon av nitrogenoksid.
NO884147 1988-09-16

Publications (4)

Publication Number Publication Date
FI894290A0 FI894290A0 (fi) 1989-09-12
FI894290A FI894290A (fi) 1990-03-17
FI88149B true FI88149B (fi) 1992-12-31
FI88149C FI88149C (sv) 1993-04-13

Family

ID=19891252

Family Applications (1)

Application Number Title Priority Date Filing Date
FI894290A FI88149C (sv) 1988-09-16 1989-09-12 Förfarande för minskning av kväveoxidemissioner

Country Status (14)

Country Link
US (1) US4973457A (sv)
EP (1) EP0359286B1 (sv)
AT (1) ATE88660T1 (sv)
DD (1) DD284659A5 (sv)
DE (1) DE68906223T2 (sv)
DK (1) DK173075B1 (sv)
ES (1) ES2040429T3 (sv)
FI (1) FI88149C (sv)
HU (1) HU203850B (sv)
IE (1) IE64035B1 (sv)
NO (1) NO165539C (sv)
PL (1) PL162657B1 (sv)
RO (1) RO103833B1 (sv)
RU (1) RU2032612C1 (sv)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0399980A3 (en) * 1989-05-23 1991-01-09 De Beers Industrial Diamond Division (Proprietary) Limited Removal of nox fumes
DE3933286A1 (de) * 1989-10-05 1991-04-18 Steinmueller Gmbh L & C Verfahren zur minderung des gehaltes an stickoxiden in den rauchgasen einer feuerung
NL8902738A (nl) * 1989-11-06 1991-06-03 Kema Nv Werkwijze en inrichting voor het uitvoeren van chemische en/of fysische reacties.
FR2687138A1 (fr) * 1992-02-07 1993-08-13 Hoechst France Procede d'oxydation thermochimique de l'oxyde de diazote.
DE19533715A1 (de) * 1995-09-12 1997-03-13 Basf Ag Verfahren zum Entfernen von Stickstoffoxiden aus einem diese enthaltenden Gasstrom
US6534029B1 (en) * 1997-08-12 2003-03-18 Basf Aktiengesellschaft Method and apparatus for producing nitric oxide
DE19746817C1 (de) * 1997-10-23 1999-03-18 Wuelfrather Zement Gmbh & Co K Verfahren und Vorrichtung zur Verringerung von NOx-Emissionen
DE19819882A1 (de) 1998-04-27 1999-10-28 Basf Ag Verfahren zur katalytischen Zersetzung von N2O
DE19902109A1 (de) 1999-01-20 2000-07-27 Basf Ag Verfahren zur thermischen N¶2¶O-Zersetzung
CA2374950C (en) * 2000-05-15 2008-07-08 W.C. Heraeus Gmbh & Co. Kg Method and device for the reduction of nitrogen protoxide
DE102007034284A1 (de) 2007-07-20 2009-01-22 Leibniz-Institut Für Katalyse E.V. An Der Universität Rostock Verfahren zur katalytischen N2O-Reduktion mit gleichzeitiger Gewinnung von Wasserstoff und leichten Alkenen
DE102010048040B4 (de) * 2010-10-12 2017-02-23 Ctp Chemisch Thermische Prozesstechnik Gmbh Verfahren und Vorrichtung zur Reinigung lachgashaltiger Abgase
CN111068476A (zh) * 2019-12-14 2020-04-28 汪子夏 硝酸溶解金属过程中nox尾气的处理装置、方法及终端
US20240342690A1 (en) 2021-07-28 2024-10-17 Basf Se New geometry for den2o catalyst

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1224715C2 (de) * 1964-12-29 1976-10-21 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von hochprozentigem stickstoffmonoxyd
JPS5531463B2 (sv) 1972-05-31 1980-08-18
NL167334C (nl) * 1975-01-13 Mitsubishi Chem Ind Werkwijze voor het verwijderen van stikstofoxyden uit een verbrandingsgas, in afwezigheid van een katalysator en in aanwezigheid van een ammoniakbron en zuurstof.
NL8006262A (en) * 1980-11-17 1981-04-29 Removing nitrous gases from waste - esp. from nitric acid prodn., by oxidn., and absorption in water and in magnesia suspension
US4562052A (en) * 1984-07-09 1985-12-31 Air Products And Chemicals, Inc. Process for the removal of nitrogen oxides from nitric acid plant tail gas

Also Published As

Publication number Publication date
RO103833B1 (en) 1993-07-15
EP0359286B1 (en) 1993-04-28
NO884147D0 (no) 1988-09-16
DD284659A5 (de) 1990-11-21
FI894290A0 (fi) 1989-09-12
ES2040429T3 (es) 1993-10-16
DE68906223T2 (de) 1993-08-05
DE68906223D1 (de) 1993-06-03
RU2032612C1 (ru) 1995-04-10
ATE88660T1 (de) 1993-05-15
IE64035B1 (en) 1995-06-28
FI894290A (fi) 1990-03-17
EP0359286A2 (en) 1990-03-21
PL162657B1 (en) 1993-12-31
DK456489A (da) 1990-03-17
HUT52459A (en) 1990-07-28
DK456489D0 (da) 1989-09-15
NO165539C (no) 1991-02-27
NO165539B (no) 1990-11-19
IE892719L (en) 1990-03-16
US4973457A (en) 1990-11-27
DK173075B1 (da) 1999-12-20
NO884147L (no) 1990-03-19
HU203850B (en) 1991-10-28
EP0359286A3 (en) 1991-01-30
FI88149C (sv) 1993-04-13

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Owner name: NORSK HYDRO A.S

MA Patent expired