DK3227019T3 - Rhodiumkatalysator til nedbrydning af lattergas, fremstilling og anvendelse heraf - Google Patents

Rhodiumkatalysator til nedbrydning af lattergas, fremstilling og anvendelse heraf Download PDF

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DK3227019T3
DK3227019T3 DK15800799.7T DK15800799T DK3227019T3 DK 3227019 T3 DK3227019 T3 DK 3227019T3 DK 15800799 T DK15800799 T DK 15800799T DK 3227019 T3 DK3227019 T3 DK 3227019T3
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catalyst
hal
xsi
binder
appropriate
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Stephan Deuerlein
Regine Helga Bebensee
Harald Würz
Denis Stella
Andreas Spiegel
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Basf Se
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • 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
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    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
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    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
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    • 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
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    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B01J23/6525—Molybdenum
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    • B01J35/613—10-100 m2/g
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    • B01J35/615—100-500 m2/g
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    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1025—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01D2257/402—Dinitrogen oxide
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
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    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

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Claims (10)

1. Katalysator til nedbrydning af lattergas indeholdende rhodium på en katalysatorbærer, idet katalysatorbæreren er fremstillet ved at blande et zirkoniumdioxidpulver sammen med en siliciumforbindelse som bindemiddel, i givet fald en poredanner, i givet fald en syre, vand samt i givet fald yderligere tilsætningsstoffer til en æltbar masse, homogenisering af massen, formgivning af massen til støbeforme, tørring og kalcinering, kendetegnet ved, at bindemidlet er udvalgt af siliciumforbindelser med de almene formler (I) til (VI) (Hal)xSiR4-x (I) (Hal) xSi (OR1) 4-x (II) (Hal) xSi (NR1R2) 4-x (III) RxSi(OR1)4-x (IV) RxSi (NR1R2) 4-x (V) (R1O)xSi (NR2R2)4-x (VI) hvor Hal uafhængigt af hinanden betegner halogen (F, Cl, Br eller I), R uafhængigt af hinanden betegner H eller en i givet fald substitueret alkyl-, alkenyl-, alkynyl-, cycloalkyl-, cycloalkenyl-, arylalkyl- eller arylgruppe, R1, R2 uafhængigt af hinanden betegner H eller en i givet fald substitueret alkyl-, acyl-, arylalkyl- eller arylgruppe, og x betegner 0 til 4.
2. Katalysator ifølge krav 1, kendetegnet ved, at der til fremstilling af katalysatorbæreren sammenblandes a) 50 til 98 vægt-% zirkoniumdioxidpulver, b) 2 til 50 vægt-% af siliciumforbindelsen som bindemiddel, c) 0 til 48 vægt-% poredanner og d) 0 til 48 vægt-% yderligere tilsætningsstoffer, idet summen af bestanddelene a) til d) giver 100 vægt-%, under tilsætning af vand og i givet fald en syre til en æltbar masse.
3. Katalysator ifølge krav 1 eller 2, kendetegnet ved, at zirkoniumdioxidpulveret i det væsentlige består af monoklint zirkoniumdioxid.
4. Katalysator ifølge et af kravene 1 til 3, kendetegnet ved, at zirkoniumdioxidpulveret har en partikelstørrelse i området fra 0,2 til 50 pm.
5. Katalysator ifølge et af kravene 1 til 4, kendetegnet ved, at zirkoniumdioxidpulveret har en specifik BET-overflade i området fra 10 til 400 m2/g.
6. Katalysator ifølge et af kravene 1 til 5, kendetegnet ved, at katalysatoren på katalysatorbæreren endvidere indeholder yderligere grundstoffer fra den III. sidegruppe inklusiv lanthaniderne og/eller fra den VI. og/eller VIII. sidegruppe i det periodiske system.
7. Katalysator ifølge et af kravene 1 til 5, kendetegnet ved, at katalysatoren på katalysatorbæreren endvidere indeholder molybdæn.
8. Fremgangsmåde til fremstilling af katalysatorer til nedbrydning af lattergas, hvor man fremstiller en katalysatorbærer, fremstillet ved at blande zirkoniumdioxidpulver sammen med en siliciumforbindelse som bindemiddel, i givet fald en poredanner, i givet fald en syre, vand samt i givet fald yderligere tilsætningsstoffer til en æltbar masse, homogenisering af massen, formgivning af massen til støbeforme, tørring og kalcinering, idet bindemidlet er udvalgt af siliciumforbindelser med de almene formler (I) til (VI) (Hal)xSiR4-x (I) (Hal) xSi (OR1) 4-x (II) (Hal) xSi (NR2R2) 4-x (III) RxSi(OR1)4-x (IV) RxSi (NR2R2) 4-x (V) (R'O)xSi (NR2R2)4-x (VI) hvor Hal uafhængigt af hinanden betegner halogen (F, Cl, Br eller I), R uafhængigt af hinanden betegner H eller en i givet fald substitueret alkyl-, alkenyl-, alkynyl-, cycloalkyl-, cycloalkenyl-, arylalkyl- eller arylgruppe, R1, R2 uafhængigt af hinanden betegner H eller en i givet fald substitueret alkyl-, acyl-, arylalkyl- eller arylgruppe, og x betegner 0 til 4, gennemvæder med en rhodium-holdig opløsning, efterfølgende tørrer og kalcinerer.
9. Anvendelse af katalysatorer ifølge et af kravene 1 til 7 til nedbrydning af lattergas.
10. Anvendelse ifølge krav 9, idet den gasstrøm, som ledes over katalysatoren, indeholder op til 20.000 ppm N2O og derudover i givet fald endvidere op til 2.000 ppm NOX, op til 1 % H2O og/eller op til 5 % O2.
DK15800799.7T 2014-12-03 2015-11-24 Rhodiumkatalysator til nedbrydning af lattergas, fremstilling og anvendelse heraf DK3227019T3 (da)

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EP14196025 2014-12-03
PCT/EP2015/077524 WO2016087269A1 (de) 2014-12-03 2015-11-24 Rhodiumkatalysator zur zersetzung von lachgas, dessen herstellung und verwendung

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US10695750B2 (en) 2020-06-30
WO2016087269A1 (de) 2016-06-09
EP3227019B1 (de) 2019-01-09
US20190134611A1 (en) 2019-05-09
CA2969588A1 (en) 2016-06-09
EP3227019A1 (de) 2017-10-11

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