DE228426C - - Google Patents
Info
- Publication number
- DE228426C DE228426C DENDAT228426D DE228426DA DE228426C DE 228426 C DE228426 C DE 228426C DE NDAT228426 D DENDAT228426 D DE NDAT228426D DE 228426D A DE228426D A DE 228426DA DE 228426 C DE228426 C DE 228426C
- Authority
- DE
- Germany
- Prior art keywords
- gases
- charcoal
- absorbed
- nitrous gases
- nitrous
- 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 18
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 9
- 239000003610 charcoal Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitrogen oxide Substances O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052813 nitrogen oxide Inorganic materials 0.000 description 1
- -1 nitrogen-oxygen compounds Chemical class 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/32—Purifying combustible gases containing carbon monoxide with selectively adsorptive solids, e.g. active carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- 'Ju 228426 KLASSE 12«. GRUPPE- 'Ju 228426 CLASS 12'. GROUP
Verfahren zur Abscheidung nitroser Gase aus Gasgemengen.Process for separating nitrous gases from gas mixtures.
Die vollständige Entfernung von nitrosen Gasen aus Gasgemengen bereitet große Schwierigkeiten. Ein gewisser Anteil geht durch vorgelegte Absorptionsmittel, wie Wasser, alkaiische Flüssigkeiten, Kalkstein usw., hindurch. The complete removal of nitrous gases from gas mixtures presents great difficulties. A certain proportion goes through the absorption medium, such as water, alkaline Liquids, limestone, etc., through.
Es wurde nun gefunden, daß im Gegensatz hierzu Holzkohle die nitrosen Gase selbst bei großer Verdünnung glatt absorbiert.It has now been found that, in contrast to this, charcoal contains the nitrous gases itself at great dilution absorbed smoothly.
ίο Die Anwendungsmöglichkeit der Holzkohle zu dem bezeichneten Zweck war nach den bekannten Eigenschaften derselben nicht ohne weiteres vorauszusehen, vielmehr war zu erwarten, daß wegen der starken Erwärmung bei der Absorption eine Entzündung der Kohle oder wenigstens eine starke Reduktion der nitrosen Gase eintreten würde. Es zeigte sich jedoch, daß selbst 50volumenprozentige Gase eine solche Entzündung nicht verursachten.ίο The possibility of using charcoal for the purpose indicated was not without its known properties further to be foreseen, rather it was to be expected that because of the strong warming upon absorption an ignition of the charcoal or at least a strong reduction of the nitrous gases would enter. It was found, however, that even 50 volume percent gases did not cause such inflammation.
Das Verfahren erwies sich besonders vorteilhaft für 3 bis 5prozentige Gase, wie sie bei der Stickstoffaktivierung oder bei der Verbrennung des Ammoniaks zu Stickstoff-Sauerstoffverbindungen erhalten werden.The process proved to be particularly advantageous for 3 to 5 percent gases, such as those used in nitrogen activation or the combustion of ammonia to form nitrogen-oxygen compounds can be obtained.
Durch geeignete Behandlung mit Wasserdampf, speziell trockenem gespannten Dampf, gelingt es leicht, die absorbierten Stickoxyde aus der Holzkohle wieder auszutreiben, und zwar in konzentrierter Form, welche eine nachträgliche Absorption in flüssigen Absorptionsmitteln bedeutend erleichtert. Statt 35 By suitable treatment with steam, especially dry, pressurized steam, it is easy to drive the absorbed nitrogen oxides out of the charcoal again, in a concentrated form, which significantly facilitates subsequent absorption in liquid absorbents. Instead of 35
4040
Wasserdampf erwies sich auch warme Luft oder ein indifferentes Gas oder Vakuum usw. als geeignet.Water vapor also turned out to be warm air or an inert gas or vacuum etc. as suitable.
iooo g Holzkohle absorbierten bei Anwendung von 3 volumenprozentigen nitrosen Gasen 122 g HNO3, bei 5 volumenprozentigen Gasen 133 bis 174 g HNO3 in Form nitroser Gase, welche bis zu 80 Prozent wiedergewonnen wurden.100 g of charcoal absorbed 122 g of HNO 3 when 3 volume percent nitrous gases were used, and 133 to 174 g HNO 3 with 5 volume percent gases in the form of nitrous gases, which were recovered up to 80 percent.
Der technische Vorteil des vorliegenden Verfahrens besteht darin, daß man die Gase nach der Absorption in konzentrierterer Form bei geringerer Strömungsgeschwindigkeit wieder austreiben kann, wodurch eine leichtere Umwandlung in Salpetersäure ermöglicht wird.The technical advantage of the present process is that the gases after drive out the absorption in a more concentrated form at a lower flow rate which enables easier conversion to nitric acid.
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE228426C true DE228426C (en) |
Family
ID=488821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT228426D Active DE228426C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE228426C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1267668B (en) * | 1957-08-28 | 1968-05-09 | Reinluft G M B H | Process for the adsorptive separation and recovery of sulfur dioxide and / or nitrogen oxide from industrial gases, in particular flue gases |
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0
- DE DENDAT228426D patent/DE228426C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1267668B (en) * | 1957-08-28 | 1968-05-09 | Reinluft G M B H | Process for the adsorptive separation and recovery of sulfur dioxide and / or nitrogen oxide from industrial gases, in particular flue gases |
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