AT67745B - Process for the preparation of nitrogen oxides by oxidation of ammonia in the presence of catalysts. - Google Patents
Process for the preparation of nitrogen oxides by oxidation of ammonia in the presence of catalysts.Info
- Publication number
- AT67745B AT67745B AT67745DA AT67745B AT 67745 B AT67745 B AT 67745B AT 67745D A AT67745D A AT 67745DA AT 67745 B AT67745 B AT 67745B
- Authority
- AT
- Austria
- Prior art keywords
- oxidation
- catalysts
- ammonia
- nitrogen oxides
- preparation
- Prior art date
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims description 12
- 239000003054 catalyst Substances 0.000 title claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims description 8
- 230000003647 oxidation Effects 0.000 title claims description 5
- 238000007254 oxidation reaction Methods 0.000 title claims description 5
- 229910021529 ammonia Inorganic materials 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000007789 gas Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 239000000356 contaminant Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Catalysts (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung von Stickoxyden durch Oxydation von Ammoniak in Gegenwart von Katalysatoren.
Bei der Oxydation von Ammoniak zu Stickoxyden mit Sauerstoff bzw. Luft unter Verwendung von Katalysatoren der Platingruppe beobachtet man. sofern da. s bereits gereinigte und staubfreie Gas auf seinem Weg zum Katalysator Leitungen oder Apparatenteile, z. B. aus Eisen oder Kupfer, berührt, dass die Wirkung des Kontakts mehr oder
EMI1.1
lässt, wenn man das Gasgemisch vor seinem Zutritt zum Katalysator einer erneuten mechanischen Reinigung, z. B. durch Filtration, unterwirft. Hiedurch werden, wie sich
EMI1.2
Material der Leitungen usw. an die Gase abgegeben werden und weiche schon in ge- ringen Mengen die Wirksamkeit des Katalysators beeinträchtigen.
Selbstredend kann man in diesem Falle auch von einer vorherigen Befreiung der Gase von staubförmigen Beimengungenabschen.
Man kann eine dauernd gute Wirksamkeit im Dal1prbetricb auf Grund obiger Erkenntnis auch in der Weise erreichen, dass man die Leitungen und Apparatentfile, welche von den Gasen auf ihrem Weg zum Katalysator berührt werden, aus solchen Metallen herstellt, welche an die Gase keine stubförmigen Teilchen abgeben. Solche Metalle sind z. B. Nickel, hochwertige Nickellegierungen und dgl. In diesem Falle ist natürlich dafür Sorge zu tragen, dass das Gasgemisch oder seine Bestandteile, vor allem die Oxydations-
EMI1.3
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of nitrogen oxides by oxidation of ammonia in the presence of catalysts.
The oxidation of ammonia to nitrogen oxides with oxygen or air using catalysts of the platinum group is observed. provided there. s already cleaned and dust-free gas on its way to the catalyst pipes or parts of the apparatus, e.g. B. made of iron or copper, that the effect of the contact more or more touches
EMI1.1
leaves if the gas mixture is subjected to renewed mechanical purification, e.g. B. by filtration, subjected. How to become, how to become
EMI1.2
Material of the pipes etc. are released into the gases and which, even in small quantities, impair the effectiveness of the catalyst.
In this case, of course, it is also possible to remove dust-like additions from the gases beforehand.
On the basis of the above knowledge, one can also achieve a consistently good effectiveness in testing operations by making the lines and apparatus outlets which are touched by the gases on their way to the catalyst from metals which do not give off any dust-like particles to the gases . Such metals are e.g. B. nickel, high-quality nickel alloys and the like. In this case, of course, care must be taken that the gas mixture or its components, especially the oxidation
EMI1.3
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE67745X | 1913-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT67745B true AT67745B (en) | 1915-01-25 |
Family
ID=5634066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT67745D AT67745B (en) | 1913-01-30 | 1913-10-30 | Process for the preparation of nitrogen oxides by oxidation of ammonia in the presence of catalysts. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT67745B (en) |
-
1913
- 1913-10-30 AT AT67745D patent/AT67745B/en active
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