DE304341C - - Google Patents
Info
- Publication number
- DE304341C DE304341C DENDAT304341D DE304341DA DE304341C DE 304341 C DE304341 C DE 304341C DE NDAT304341 D DENDAT304341 D DE NDAT304341D DE 304341D A DE304341D A DE 304341DA DE 304341 C DE304341 C DE 304341C
- Authority
- DE
- Germany
- Prior art keywords
- carbon dioxide
- contact
- water
- oxide
- oxidizing agents
- 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.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000875 corresponding Effects 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- 125000004435 hydrogen atoms Chemical class [H]* 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 239000011780 sodium chloride Substances 0.000 description 3
- KMUONIBRACKNSN-UHFFFAOYSA-N Potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- VTVVPPOHYJJIJR-UHFFFAOYSA-N carbon dioxide;hydrate Chemical compound O.O=C=O VTVVPPOHYJJIJR-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- PHFQLYPOURZARY-UHFFFAOYSA-N chromium trinitrate Chemical compound [Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PHFQLYPOURZARY-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- -1 nitrates Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N Nickel(II) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 229940069002 Potassium Dichromate Drugs 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052803 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 229910000460 iron oxide Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 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
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
- C01B3/12—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
- C01B3/16—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
-
- 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
- B01J38/00—Regeneration or reactivation of catalysts, in general
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Description
Zahlreiche Kontaktmassen,, die Eisen, Kobalt, Nickel u. dgl. oder Gemische solcher Metalle bzw. deren Oxyde enthalten, wie solche z. B. für die katalytische Wasserstoffgewinnung aus Kohlenoxyd und Wasserdampf verwendet werden, verlieren unter Umständen allmählich ihre Wirksamkeit, indem sie aus , den zur Umsetzung gelangenden Stoffen, z. B. aus den übergeleiteten Gasen, schädliche Verunreinigungen aufnehmen, Sinterung erleiden usw. Ähnlich gibt es- Metallprodukte, wie Kiesabbrandstücke, die von vornherein als. Kontaktmasse wenig.wirksam sind und darum nicht ohne weiteres mit Vorteil verwendet werden können.Numerous contact masses, including iron, cobalt, Nickel and the like, or mixtures of such metals or their oxides, such as those z. B. for catalytic hydrogen production Carbon dioxide and water vapor used may gradually lose their effectiveness as they are turned off , the substances to be implemented, e.g. B. from the transferred gases, harmful impurities absorb, suffer sintering, etc. Similarly, there are metal products, such as Gravel char, which from the outset as. Contact mass are not very effective and therefore cannot be used to advantage without further ado.
Es wurde nun gefunden, daß man eine Wiederbelebung bzw. Verbesserung solcher Kontaktmassen erzielt, wenn man dieselben mit wasserhaltigen, oxydierenden Mitteln derartIt has now been found that one can revive or improve such contact materials achieved when the same with water-based, oxidizing agents in such a way
ao behandelt, daß eine Auflösung des 'Kontaktmetalls oder dessen Oxydes -nicht oder doch nur in geringem Maße stattfindet. Besonders wertvoll ist das Verfahren für geformte Kontaktmassen,, indem es hier möglich ist, die Verbesserung durch Erneuerung der Ober-* fläche vorzunehmen, ohne daß eine Zerstörung der Form eintritt. .ao treated that a dissolution of the 'contact metal or the oxide of which does not take place, or at least only to a small extent. Particularly The process is valuable for molded contact masses, in that it is possible here to do so To make improvement by renewing the surface without destroying it the shape occurs. .
Als geeignete Mittel für eine solche Behandlung dienen verdünnte, wäßrige, oxydierende Säuren, wie Salpetersäure, Lösungen von oxydierend wirkenden Salzen, wie Nitraten, Ghromaten u. dgl., wobei auch die Lösung, imDilute, aqueous, oxidizing agents serve as suitable agents for such a treatment Acids such as nitric acid, solutions of oxidizing salts such as nitrates, Ghromats and the like, whereby the solution, im
stallwasser des Salzes (Schmelze von Salzhydraten) verwendet werden kann. Man kann auch zwei oder mehrere geeignete Mittel gleichzeitig oder nacheinander anwenden.Stall water of the salt (melt of salt hydrates) can be used. One can also apply two or more suitable agents at the same time or one after the other.
B ei s ρ ie I ι.B ei s ρ ie I ι.
Eine für die Herstellung von Wasserstoff gebrauchte geformte, im wesentlichen aus Eisenoxyd bzw. -oxydul bestehende, Schwefel u. dgl. enthaltende Kontaktmasse wird, gegebenenfalls' nach vorheriger Wasserdampfbehandlung bei 3000, mit einer konzentrierten Lösung von 80 Teilen Eisennitrat und 20 TeilenAluminiunl· oder Chromnitrat getränkt, getrocknet und zur Zersetzung des Nitrats erhitzt. Die hierauf wieder eingefüllte Kontaktmasse ist von neuem gut wirksam.A used for the production of hydrogen formed, consisting essentially of iron oxide or -oxydul existing, and sulfur. Like. Containing contact mass, optionally 'by prior treatment with steam at 300 0, with a concentrated solution of 80 parts of ferric nitrate and 20 TeilenAluminiunl · or Soaked in chromium nitrate, dried and heated to decompose the nitrate. The contact compound then filled in again is effective again.
Kiesabbrand in Stücken-, der z. B. gegenüber einem Kohlenoxyd-Wasserdämpfgemisch sehr wenig wirksam ist, indem er nur einige Prozent des Kohlenoxyds zu Kohlendioxyd und / Wasserstoff umsetzt, wird mit einer Lösung von 20 Prozent Nickelnitrat getränkt und auf 2oo° erhitzt, dann nochmals mit einer Lösung von 5 Prozent Kaliumbichromat getränkt und getrocknet. Die Masse zeigt nunmehr eine sehr gute katalytische Wirksamkeit, indem mit ihr z. B, schon bei 4000 drei Viertel oder mehr des im Kohlenoxyd-Wasser dampf gemischGravel burn in pieces, the z. B. is very little effective compared to a carbon dioxide-water vapor mixture, in that it only converts a few percent of the carbon dioxide to carbon dioxide and / hydrogen, is soaked with a solution of 20 percent nickel nitrate and heated to 2oo °, then again with a solution of 5 percent potassium dichromate soaked and dried. The mass now shows a very good catalytic effectiveness by z. B, already at 400 0 three quarters or more of the mixture in the carbon dioxide-water vapor
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE304341C true DE304341C (en) | 1900-01-01 |
Family
ID=557954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT304341D Expired DE304341C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE304341C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473880A (en) * | 1942-08-11 | 1949-06-21 | Allied Chem & Dye Corp | Cleaning metal catalysts with alcoholic caustic solution |
| DE1052366B (en) * | 1956-01-27 | 1959-03-12 | Du Pont | Production of platinum metal catalysts on alumina carriers |
| DE1094244B (en) * | 1956-01-03 | 1960-12-08 | Quaker Oats Co | Process for the regeneration of a catalyst from copper and sodium silicate by oxidation of a carbonaceous residue deposited on it |
-
0
- DE DENDAT304341D patent/DE304341C/de not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473880A (en) * | 1942-08-11 | 1949-06-21 | Allied Chem & Dye Corp | Cleaning metal catalysts with alcoholic caustic solution |
| DE1094244B (en) * | 1956-01-03 | 1960-12-08 | Quaker Oats Co | Process for the regeneration of a catalyst from copper and sodium silicate by oxidation of a carbonaceous residue deposited on it |
| DE1052366B (en) * | 1956-01-27 | 1959-03-12 | Du Pont | Production of platinum metal catalysts on alumina carriers |
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