DE306302C - - Google Patents
Info
- Publication number
- DE306302C DE306302C DENDAT306302D DE306302DA DE306302C DE 306302 C DE306302 C DE 306302C DE NDAT306302 D DENDAT306302 D DE NDAT306302D DE 306302D A DE306302D A DE 306302DA DE 306302 C DE306302 C DE 306302C
- Authority
- DE
- Germany
- Prior art keywords
- oxygen
- gas
- air
- way
- hydrogen
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 239000007789 gas Substances 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0411—Chemical processing only
- C01B21/0422—Chemical processing only by reduction
-
- 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
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0411—Chemical processing only
- C01B21/0416—Chemical processing only by oxidation
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Description
Für die Darstellung von , sauerstofffreiem Stickstoff für die Ammoniakkatalyse in beliebig großem Maßstabe und in technisch, selbständiger Weise hat es sich als zweckmäßig erwiesen, in der Art zu verfahren, daß Generatorgas mit derart bemessenen Mengen Sauerstoff bzw. Luft verbrannt wird, daß ein Gemisch von Stickstoff und Kohlensäure entsteht, worauf letztere nebst weiteren Verun- reinigungen in geeigneter Weise entfernt wird.For the representation of oxygen-free nitrogen for ammonia catalysis in any large scale and in technical, independent Way, it has proven to be useful to proceed in such a way that generator gas is burned with such measured amounts of oxygen or air that a mixture of nitrogen and carbonic acid, whereupon the latter along with other pollutants cleaning is removed in a suitable manner.
Es gelingt leicht, die Verbrennung so zu leiten, daß im entstehenden Gase praktisch weder Sauerstoff noch Kohlenoxyd enthaltenIt is easy to manage the combustion in such a way that the gases produced are practically contain neither oxygen nor carbon monoxide
. ist; wie sich indessen weiter gezeigt hat, ist der so gewonnene Stickstoff im allgemeinen für die Ammoniakkatalyse noch nicht ohne weiteres geeignet, da, wie beobachtet wurde, die schwer absorbierbaren Verunreinigungen (etwa Schwefelverbindungen u.dgl.) des Generatorgases auf diese Weise nur unvollkommen beseitigt werden.. is; as has been shown, however, is the nitrogen thus obtained is generally not yet used for ammonia catalysis further suitable because, as has been observed, the impurities that are difficult to absorb (such as sulfur compounds, etc.) of the generator gas in this way only imperfectly be eliminated.
Um diesen Nachteil zu vermeiden und einen Stickstoff zu erhalten, der leicht'in die für die Ammoniakkatalyse erforderliche Reinheit gebracht werden kann, verfährt man gemäß vorliegender Erfindung in der Weise, daß man nicht die theoretische Luftmenge verwendet, sondern das Generatorgas zunächst mit einem geringen Überschuß von Luft verbrennt und sodann in das heiße Gas kleine Mengen eines Reduktionsgases in reiner,Form, z. B. reinen Wasserstoff, einführt, um den Rest des Sauerstoffs durch Verbrennung zu beseitigen. Zur Sicherung der völligen Entfernung des Sauer-Stoffs kann man das heiße Gasgemisch noch über eine Kontaktmasse wie verkupferte Tonkugeln leiten. Durch diese Arbeitsweise wird erreicht, daß die schwer absorbierbaren Verunreinigungen des Ausgangsgases in leicht absorbierbarer Form erhalten werden, so daß eine bloße Behandlung mit Wasser, Natronlauge u. dgl. auch ohne Druck zur Reinigung genügt.In order to avoid this disadvantage and to obtain a nitrogen which is easily used for the ammonia catalysis can be brought to the required purity, one proceeds according to present invention in such a way that one does not use the theoretical amount of air, but the generator gas initially burns with a small excess of air and then in the hot gas small amounts of a reducing gas in pure form, e.g. B. pure Hydrogen, to remove the rest of the oxygen by combustion. To the Ensuring the complete removal of the sour substance the hot gas mixture can still be reached via a contact material such as copper-plated clay balls conduct. This way of working ensures that the impurities that are difficult to absorb of the starting gas can be obtained in an easily absorbable form, so that a mere treatment with water, sodium hydroxide solution and the like is sufficient for cleaning even without pressure.
Das Verfahren kann beispielsweise so ausgeführt werden, daß man in einem mit Schamotte ausgemauerten Verbrennungsraum ein Gemisch von Braunkohle-Generatorgas mit Luft verbrennt, wobei die Mischung so geregelt wird, daß eine hinter der Verbrennungszone genommene Gasprobe noch Ί bis 2 Prozent freien Sauerstoff zeigt. Alsdann wird an einer weiter vorwärts gelegenen Stelle des glühenden Raums Wasserstoff in solcher Menge eingeführt, daß das Ausgangsgas sauerstofffrei ist, wobei es Kohlenoxydgehalte etwa bis zu ι Prozent oder mehr aufweisen kann. Das Gas ist dann frei von Sauerstoff und auch frei von schwer absorbierbaren Verunreinigungen; es braucht nur gekühlt und von Kohlensäure, Schwefelwasserstoff u. dgl. befreit zu werden, worauf es gegebenenfalls für sich oder nach Vermischung mit etwa auch noch kohlenoxydhaltigem Wasserstoff von Kohlenoxyd, etwa durch ammoniakalische Kupferoxydullösungen, gereinigt wird.The method can for example be carried out in this way that one can be found in a combustion chamber lined with fireclay Mixture of lignite generator gas with air burns, whereby the mixture is regulated that a gas sample taken behind the combustion zone still has Ί to 2 percent shows free oxygen. Then, at a point further forward, the glowing Space hydrogen introduced in such an amount that the starting gas is oxygen-free, it can have carbon oxide contents up to about ι percent or more. That The gas is then free of oxygen and also free of impurities that are difficult to absorb; it only needs to be cooled and freed from carbonic acid, hydrogen sulfide and the like to become what it may be on its own or after mixing with about as well carbon dioxide-containing hydrogen from carbon oxide, for example through ammoniacal copper oxide solutions, is cleaned.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE306302C true DE306302C (en) |
Family
ID=559745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT306302D Active DE306302C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE306302C (en) |
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0
- DE DENDAT306302D patent/DE306302C/de active Active
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