NO20002522L - Catalysts for ammonia oxidation - Google Patents

Catalysts for ammonia oxidation

Info

Publication number
NO20002522L
NO20002522L NO20002522A NO20002522A NO20002522L NO 20002522 L NO20002522 L NO 20002522L NO 20002522 A NO20002522 A NO 20002522A NO 20002522 A NO20002522 A NO 20002522A NO 20002522 L NO20002522 L NO 20002522L
Authority
NO
Norway
Prior art keywords
cobalt
particles
ammonia oxidation
cross
section
Prior art date
Application number
NO20002522A
Other languages
Norwegian (no)
Other versions
NO20002522D0 (en
Inventor
Bernard John Crewdson
Andrew Mark Ward
Michael David Dunne
Original Assignee
Ici Plc
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 Ici Plc filed Critical Ici Plc
Publication of NO20002522D0 publication Critical patent/NO20002522D0/en
Publication of NO20002522L publication Critical patent/NO20002522L/en

Links

Classifications

    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0242—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/248—Reactors comprising multiple separated flow channels
    • B01J19/2495—Net-type reactors
    • 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
    • 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
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0207—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly horizontal
    • B01J8/0214—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly horizontal in a cylindrical annular shaped bed
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C01B21/265—Preparation by catalytic or non-catalytic oxidation of ammonia characterised by the catalyst
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C01B21/28—Apparatus
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00884—Means for supporting the bed of particles, e.g. grids, bars, perforated plates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

En katalysatorpatronenhet for ammoniakkoksidasjon omfatter et par av tilbakeholdende nett i en avstand fra hverandre på mindre enn 50mm som definerer en innelukning fylt med en tilfeldig pakket masse av partikler av en sammensetning omfattende oksider av minst ett metall valgt fra mangan, jern, nikkel og kobolt, spesielt kobolt og minst element A valgt fra sjeldne jordarts- metaller og yttrium i slike andeler at atomforholdet mellom element A og kobolt er i område fra 0,8 til 1,2. Katalysatorpartiklene har en minimumdimen- sjon på minst 0,5mm og en maksimumdimensjon på ikke mer enn 5mm, og avstanden mellom nettene er minst 4 x, men ikke mer enn 50 x, maksimum- dimensjonen av partiklene. Enheten kan strekke seg over tverrsnittet av ammoniakkoksidasjonsreaktoren eller en katalysatorpatron kan omfatte et gitter eller en gjennomhullet plate, som strekker seg over tverrsnittet av reaktoren, med en enhet som nevnt i hver apertur.An ammonia oxidation catalyst cartridge assembly comprises a pair of retaining nets less than 50mm apart defining an enclosure filled with a randomly packed mass of particles of a composition comprising at least one metal oxide selected from manganese, iron, nickel and cobalt. especially cobalt and least element A selected from rare earth metals and yttrium in such proportions that the atomic ratio of element A to cobalt is in the range of 0.8 to 1.2. The catalyst particles have a minimum dimension of at least 0.5mm and a maximum dimension of not more than 5mm, and the distance between the nets is at least 4x, but not more than 50x, the maximum dimension of the particles. The unit may extend over the cross-section of the ammonia oxidation reactor or a catalyst cartridge may comprise a grating or a perforated plate extending over the cross-section of the reactor with a unit as mentioned in each aperture.

NO20002522A 1997-11-19 2000-05-16 Catalysts for ammonia oxidation NO20002522L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9724310.9A GB9724310D0 (en) 1997-11-19 1997-11-19 Ammonia oxidation catalysts
PCT/GB1998/003386 WO1999025650A1 (en) 1997-11-19 1998-11-06 Ammonia oxidation catalysts

Publications (2)

Publication Number Publication Date
NO20002522D0 NO20002522D0 (en) 2000-05-16
NO20002522L true NO20002522L (en) 2000-05-16

Family

ID=10822227

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20002522A NO20002522L (en) 1997-11-19 2000-05-16 Catalysts for ammonia oxidation

Country Status (7)

Country Link
EP (1) EP1034134A1 (en)
AU (1) AU733971B2 (en)
CA (1) CA2306780A1 (en)
GB (1) GB9724310D0 (en)
NO (1) NO20002522L (en)
WO (1) WO1999025650A1 (en)
ZA (1) ZA9810270B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026712A1 (en) * 2007-06-06 2008-12-11 Uhde Gmbh Apparatus and method for catalytic gas phase reactions and their use
GB0819094D0 (en) * 2008-10-20 2008-11-26 Johnson Matthey Plc Catalyst containment unit
DE102008059930A1 (en) 2008-12-02 2010-06-10 Uhde Gmbh Apparatus and method for catalytic gas phase reactions and their use
PL2202201T3 (en) 2008-12-23 2016-11-30 Ammonia oxidation catalysts
AR075787A1 (en) * 2009-03-05 2011-04-27 Uhde Gmbh PROCEDURE AND DEVICE FOR RETAINING THE CATALYST IN THE FORM OF INGRESSING TRAILED PARTICLES
DE102013004341A1 (en) 2013-03-14 2014-09-18 Thyssenkrupp Uhde Gmbh Process for the oxidation of ammonia and suitable plant
CN110395488B (en) * 2019-07-30 2020-07-14 西安交通大学 Grid particle composite bed stacking method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2148707A1 (en) * 1970-10-01 1972-06-22 Ici Ltd Ammonia oxidation catalyst - by decomposing cobalt carbonate pellets and sintering the resulting oxide
FR2139081A1 (en) * 1971-05-26 1973-01-05 North American Rockwell Combination of hydrogen and oxygen - by catalytic conversion on thin beds with large surface area
GB1427509A (en) * 1972-06-05 1976-03-10 Imp Chemical Ind Ld Oxidation of ammonia to nitrogen oxides
US3985681A (en) * 1972-06-15 1976-10-12 Societe Chimique De La Grande Paroisse, Azote Et Produits Chimiques Catalyst for the oxidation of ammonia
CN86108985B (en) * 1986-10-04 1988-11-23 中国科学院长春应用化学研究所 Rare earth cobaltic trioxide catalyzer for preparing nitric acid by ammonia oxidation
US4812300A (en) * 1987-07-13 1989-03-14 Sri-International Selective perovskite catalysts to oxidize ammonia to nitric oxide
GB9211534D0 (en) * 1992-06-01 1992-07-15 Pgp Ind Inc Foraminous sheets for use in catalysis

Also Published As

Publication number Publication date
NO20002522D0 (en) 2000-05-16
WO1999025650A1 (en) 1999-05-27
AU733971B2 (en) 2001-05-31
ZA9810270B (en) 1999-05-19
EP1034134A1 (en) 2000-09-13
AU1046099A (en) 1999-06-07
GB9724310D0 (en) 1998-01-14
CA2306780A1 (en) 1999-05-27

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