DK677887A - PROCEDURES FOR THE REMOVAL OF NITROGEN OXIDES FROM WASTE GAS INCURRED BY COAL COMBUSTION - Google Patents

PROCEDURES FOR THE REMOVAL OF NITROGEN OXIDES FROM WASTE GAS INCURRED BY COAL COMBUSTION

Info

Publication number
DK677887A
DK677887A DK677887A DK677887A DK677887A DK 677887 A DK677887 A DK 677887A DK 677887 A DK677887 A DK 677887A DK 677887 A DK677887 A DK 677887A DK 677887 A DK677887 A DK 677887A
Authority
DK
Denmark
Prior art keywords
removal
nitrogen oxides
procedures
waste gas
coal combustion
Prior art date
Application number
DK677887A
Other languages
Danish (da)
Other versions
DK677887D0 (en
DK169537B1 (en
Inventor
Wolf Dieter Mross
Ronald Drews
Olaf Scheidsteger
Helmut Schachner
Klaus Hess
Original Assignee
Basf Ag
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=6317214&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK677887(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Basf Ag filed Critical Basf Ag
Publication of DK677887D0 publication Critical patent/DK677887D0/en
Publication of DK677887A publication Critical patent/DK677887A/en
Application granted granted Critical
Publication of DK169537B1 publication Critical patent/DK169537B1/en

Links

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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/30—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/613—10-100 m2/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/633—Pore volume less than 0.5 ml/g

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)
  • Chimneys And Flues (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

For the removal of nitrogen oxides by selective catalytic reduction with ammonia, catalysts are used which essentially contain titanium oxide and catalytically active quantities of oxides of vanadium, tungsten and/or molybdenum. The catalysts have a BET surface area from 5 to 60 m<2>/g and a pore volume of 0.15 - 0.40 ml/g and contain at most 35 % of pores of diameters < 200 A.
DK677887A 1986-12-24 1987-12-22 Process for the removal of nitrogen oxides from waste gases resulting from the combustion of coal DK169537B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863644461 DE3644461A1 (en) 1986-12-24 1986-12-24 METHOD FOR REMOVING NITROGEN OXIDS FROM EXHAUST GASES WHICH COME FROM THE COMBUSTION OF COAL
DE3644461 1986-12-24

Publications (3)

Publication Number Publication Date
DK677887D0 DK677887D0 (en) 1987-12-22
DK677887A true DK677887A (en) 1988-06-25
DK169537B1 DK169537B1 (en) 1994-11-28

Family

ID=6317214

Family Applications (1)

Application Number Title Priority Date Filing Date
DK677887A DK169537B1 (en) 1986-12-24 1987-12-22 Process for the removal of nitrogen oxides from waste gases resulting from the combustion of coal

Country Status (5)

Country Link
EP (1) EP0272620B1 (en)
AT (1) ATE77256T1 (en)
DE (2) DE3644461A1 (en)
DK (1) DK169537B1 (en)
FI (1) FI85562C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5270277A (en) * 1990-08-08 1993-12-14 Siemens Aktiengesellschaft Arsenic-resistant catalyst and method for producing the same
DE4025174A1 (en) * 1990-08-08 1992-02-13 Siemens Ag ARSEN-RESISTANT MIXED OXIDE CATALYST AND METHOD FOR THE PRODUCTION THEREOF
DE4038054A1 (en) * 1990-11-29 1992-06-04 Man Technologie Gmbh METHOD AND DEVICE FOR SELECTIVE CATALYTIC NO (DOWN ARROW) X (DOWN ARROW) REDUCTION IN OXYGEN-BASED EXHAUST GASES
US5759504A (en) * 1994-12-28 1998-06-02 Hitachi, Ltd. Method for treating organohalogen compounds with catalyst
EP3894072A4 (en) 2018-12-14 2022-09-14 Basf Corporation A method for production of vanadium catalysts
CN113786841B (en) * 2021-09-17 2023-11-21 重庆科技学院 Lead poisoning resistant Fe-Mn-Ce/titanium-containing blast furnace slag denitration catalyst

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520124A (en) * 1981-03-19 1985-05-28 Sakai Chemical Industry Co., Ltd. Method for producing a catalytic structure for the reduction of nitrogen oxides
DE3779209D1 (en) * 1986-07-25 1992-06-25 Mitsubishi Petrochemical Co CATALYSTS AND THEIR USE FOR THE REMOVAL OF NITROGEN OXIDS IN EXHAUST GAS.

Also Published As

Publication number Publication date
FI875375A0 (en) 1987-12-07
EP0272620B1 (en) 1992-06-17
FI875375A (en) 1988-06-25
DK677887D0 (en) 1987-12-22
EP0272620A2 (en) 1988-06-29
EP0272620A3 (en) 1989-02-22
FI85562C (en) 1992-05-11
ATE77256T1 (en) 1992-07-15
DK169537B1 (en) 1994-11-28
DE3779887D1 (en) 1992-07-23
FI85562B (en) 1992-01-31
DE3644461A1 (en) 1988-07-07

Similar Documents

Publication Publication Date Title
EP0268265A3 (en) Denitration catalyst for reducing nitrogen oxides in exhaust gas
US4188364A (en) Two-stage catalysis of engine exhaust
BG81605A (en) CATALYST AND METHOD FOR CATALYTIC PRODUCTION OF ETHYLENE OXIDE
ATE146697T1 (en) CATALYTIC COMBUSTION OF ORGANIC COMPOUNDS
DK0812305T3 (en) Microporous, amorphous blend metal oxides for shape selective catalysis
DE3877131D1 (en) NITROGEN OXYDE REMOVAL CATALYST.
EP0323195A3 (en) A process for removing nitrogen oxides
ATE123968T1 (en) CATALYST FOR REMOVAL OF NITROGEN OXIDES AND METHOD FOR REMOVAL OF NITROGEN OXIDES USING THIS CATALYST.
ES2059798T3 (en) NEW CATALYST THAT CAN BE USED IN A SELECTIVE REDUCTION PROCEDURE OF NITROGEN OXIDES.
ES2051289T3 (en) PROCESS FOR THE ELIMINATION OF HYDROGEN SULFIDE FROM GASES.
ATE76325T1 (en) CATALYSTS AND THEIR USE TO REMOVE NITROUS OXIDES IN EXHAUST GASES.
DK677887D0 (en) PROCEDURES FOR THE REMOVAL OF NITROGEN OXIDES FROM WASTE GAS INCURRED BY COAL COMBUSTION
FI970356A0 (en) Distillation residue conversion low catalyst with macropores
FI864256A0 (en) CATALYTIC FOER REDUCTION AV KVAEVETS OXIDER.
AU5370386A (en) Catalytic reduction of nitrogen oxides in exhaust gases
SE8001723L (en) Catalyst for the removal of nitrogen oxides from a gas stream
EP1138379A3 (en) A titanium, molybdenum and vanadium containing catalyst for purification of exhaust gases, preparation and use thereof
CA2057522A1 (en) Catalyst for purifying exhaust gas
DK311889A (en) PROCEDURE FOR REMOVAL OF NITROGEN OXIDES FROM COMBUSTION GAS
NO170148C (en) PROCEDURE FOR CATALYTIC HYDROGENATION OF A NITRIL TO AN AMINE
DE59207781D1 (en) Catalyst for reducing nitrogen oxides in the flue gas and process for its production
GB1472219A (en) Process for the selective removal of nitrogen oxides from waste gases containing sulphur oxides
RU92009004A (en) CATALYST FOR OXIDATION OF SULFUR DIOXIDE
KR960010077A (en) Method for preparing a catalyst for purifying nitrogen oxides (NOx)
ES2140268A1 (en) Catalytic systems for the selective catalytic reduction of oxides of nitrogen at high temperature.

Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed