DE3422779A1 - Use of ceramicising substrate compositions for producing catalysts - Google Patents

Use of ceramicising substrate compositions for producing catalysts

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Publication number
DE3422779A1
DE3422779A1 DE19843422779 DE3422779A DE3422779A1 DE 3422779 A1 DE3422779 A1 DE 3422779A1 DE 19843422779 DE19843422779 DE 19843422779 DE 3422779 A DE3422779 A DE 3422779A DE 3422779 A1 DE3422779 A1 DE 3422779A1
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Germany
Prior art keywords
mountains
catalysts
flotation
production
mining
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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.)
Granted
Application number
DE19843422779
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German (de)
Other versions
DE3422779C2 (en
Inventor
Heribert Dipl.-Ing. 4390 Gladbeck Dewert
Heinrich Ing.(grad.) 4600 Dortmund Gresch
Heinz Dipl.-Ing. Hölter
Heinrich Dipl.-Ing. 4390 Gladbeck Igelbüscher
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Individual
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Individual
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Priority to DE19843422779 priority Critical patent/DE3422779A1/en
Priority to DE19843446706 priority patent/DE3446706A1/en
Publication of DE3422779A1 publication Critical patent/DE3422779A1/en
Application granted granted Critical
Publication of DE3422779C2 publication Critical patent/DE3422779C2/de
Granted legal-status Critical Current

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Classifications

    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • 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
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/18—Carbon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)

Abstract

The invention relates to the use of ceramicising substrate compositions for producing catalysts, especially for converting NOx into molecular nitrogen. In order to provide substrate compositions for catalysts having excellent ceramic properties, whose production is extremely economical, it is proposed according to the invention to use so-called ground gangue (raw rock from underground mining or ore mining), preferably flotation gangue from the underground mining sector, which, in order to improve the quality, is heated and ceramicised at 800 DEG C-950 DEG C on its own or with the addition of 2%-10% of coal dust and/or 0.5-10% of sodium metasilicate pentahydrate, and to utilise the energy of the carbon contained in the gangue. <IMAGE>

Description

Beschreibung und Erläuterung zur PatentanmeldungDescription and explanation of the patent application

Einsatz von keramisierenden Trägermassen zur Herstellung von Katalysatoren".Use of ceramizing carrier materials for the production of catalysts ".

Es ist bekannt, daß NOx neben S02 aus den Abgasen hinter Verbrennungsanlagen über Katalysatoren abgeschieden werden kann Dazu gibt es verschiedene Arten von Katalysa;toren,-die auf Keramikmasse als Trägermaterial aufgebaut sind, um NO aus S02-belasteten Abgasen abzuscheiden.It is known that NOx in addition to SO2 from the exhaust gases behind combustion plants Can be deposited using catalysts There are different types of Catalysts, which are built on ceramic mass as a carrier material, to remove NO Separate S02-polluted exhaust gases.

Es wurde gefunden, daß Flotationsberge, die bei den Kohlewäschen im Kohlebergbau als ein Abfallprodukt anfallen und deponiert werden müssen, hervorragende keramische Eigenschaften besitzen und als Trägermaterisl zur Herstellung von Katalysatoren für#die NOx-Abscheidung oder sonstige Aufgaben geeignet si;nid.It was found that flotation mountains, which in the coal washes in the Coal mining as a waste product and must be landfilled is excellent Have ceramic properties and as a support material for the production of catalysts si; nid for # the NOx separation or other tasks.

Auf eine Temperatur zwischen 8000C - 9500C erhitzt, keramisieren die Flotationsberge und bilden je nach vorheriger Formgebung einen harten, keramischen Körper mit einer für einen Katalysator geforderten porösen Oberfläche Die poröse Oberfläche des Trägermaterials kann noch günstiger beeinflußt werden oder gestaltet werden, indem den Flotationsbergen noch zusätzlich 2 % - 10 % Kohlenstaub zugemischt werden.When heated to a temperature between 8000C - 9500C, they ceramize Flotation mountains and, depending on the previous shape, form a hard, ceramic one Body with a porous surface required for a catalyst The porous The surface of the carrier material can be influenced or designed even more favorably are added by adding 2% - 10% coal dust to the flotation mountains will.

Die Festigkeit bzw. Härte des Trägermaterials kann positiv durch Zugabe von 0,5 % ~ 10 % Natriummetasilikat . 5-Hydrat zu den Flotationsbergen beeinflußt werden.The strength or hardness of the carrier material can be increased by adding from 0.5% ~ 10% sodium metasilicate. 5 hydrate to flotation mountains will.

Die zur Anwendung kommenden Flotationsberge enthalten in der Regel teilweise bis zu 2000 kcal an Kohlenstoff, die bei der Keramisierung energetisch genutzt werden und zur Herstellung eines preisgünstigen Trägermaterials für Katalysatoren beiträgt.The flotation mountains used usually contain sometimes up to 2000 kcal of carbon, which is energetic during ceramization can be used and for the production of an inexpensive carrier material for catalysts contributes.

Dieses trifft auch für den zugemischten Kohlenstaub zu.This also applies to the mixed coal dust.

Selbstverstandlich ist die Erfindung nicht auf die vorstehend im einzelnen beschriebenen Ausbildnsformen beschränkt, sondern es sind zahlreiche Abänderungen innerhalb des Verfahrens möglich, ohne jedoch von dem Grundgedanken abzuweichen, und/oder aufgemahlene Berge (Rohgestein aus dem Untertagebergbau oder Erzbergbau), vorzugsweise Flotation#-berge als keramische Trägermasse zum Mischen mit spezifischen Stoffen, die katalytische Eigenschaften besitzen (z.B. Schwermetalle usw. vor dem Keramisieren zuzusetzen oder nach dem Keramisieren in Form von Lösungen zu tränken) zur Herstellung von Katalysatoren, insbesondere zur NO -Wandlung zu verwenden.It goes without saying that the invention is not limited to the above in detail Training forms described are limited, but there are numerous changes possible within the procedure without deviating from the basic idea, and / or ground mountains (raw rock from underground mining or ore mining), preferably flotation mountains as a ceramic carrier for mixing with specific Substances that have catalytic properties (e.g. heavy metals etc. before To add ceramization or to soak in the form of solutions after ceramization) to use for the production of catalysts, especially for NO conversion.

Patentansprüche:-Patent claims: -

Claims (1)

Patentansprüche: Anspruch 1 Einsatz von keramisierenden Trägermassen zur Herstellung von Katalysatoren, insbesondere zur Wandlung von NOx in molekularen Stickstoff, dadurch zekennzeichnet, daß und/oder sogenannte gemahlene Waschberge, insbesondere Flotationsberge aus dem Untertage-Bergbaubereich allein oder mit Zusätzen von und/oder 2 % - 10 % Kohlenstaub und/oder 0,) % - 10 % Natriummetasilikat . 5-Hydrat zur Qualitätsverbesserung bei 8000C 950°C erhitzt und keramisiert-zur Anwendung kommen,und der in den Bergen enthaltene Kohlenstoff energetisch genutzt wird.Claims: Claim 1 Use of ceramizing carrier materials for the production of catalysts, in particular for the conversion of NOx into molecular ones Nitrogen, characterized in that and / or so-called ground washing mountains, in particular flotation mountains from the underground mining sector alone or with additives of and / or 2% - 10% coal dust and / or 0.1% - 10% sodium metasilicate. 5 hydrate to improve quality at 8000C 950 ° C heated and ceramized - for use come, and the carbon contained in the mountains is used for energy. Anspruch 2 Einsatz von keramischen Trägermassen zur Herstellung von Katalysatoren nach Anspruch 1 dadurch mekennzeichnet, daß bevorzugt Flotationsherge des Stein kohlenbergbaus und/oder Flotationsberge des Erzbergbaus gemischt oder auch einzeln Anwendung finden.Claim 2 use of ceramic carrier materials for the production of Catalysts according to Claim 1, characterized in that flotation heaters are preferred of the stone coal mining and / or flotation mountains from ore mining mixed or used individually. Anspruch 3: Einsatz von keramisierenden Trägermassen zur Herstellung von Katalysatoren nach Anspruch 1 - 2 dadurch gekennzeichnet, daß die katalytisch wirkenden Zusatzstoffe den Bergen vor der Keramisierung zugesetzt werden und oder nach der Keramisierung die Trägermasse mit entsprechenden Lösungen getränkt wird.Claim 3: Use of ceramizing carrier materials for production of catalysts according to claim 1 - 2, characterized in that the catalytically active additives are added to the mountains before ceramization and or after the ceramization, the carrier mass is impregnated with appropriate solutions.
DE19843422779 1984-06-20 1984-06-20 Use of ceramicising substrate compositions for producing catalysts Granted DE3422779A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19843422779 DE3422779A1 (en) 1984-06-20 1984-06-20 Use of ceramicising substrate compositions for producing catalysts
DE19843446706 DE3446706A1 (en) 1984-06-20 1984-12-21 Process for precipitating dust with simultaneous reduction in NOx and SO2, preferably downstream of coal-fired power stations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843422779 DE3422779A1 (en) 1984-06-20 1984-06-20 Use of ceramicising substrate compositions for producing catalysts

Publications (2)

Publication Number Publication Date
DE3422779A1 true DE3422779A1 (en) 1985-12-19
DE3422779C2 DE3422779C2 (en) 1988-10-13

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DE19843422779 Granted DE3422779A1 (en) 1984-06-20 1984-06-20 Use of ceramicising substrate compositions for producing catalysts

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3440808A1 (en) * 1984-11-08 1986-05-07 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Catalyst for NOx production, preferably downstream of fossil-fuel power stations
DE3523356A1 (en) * 1984-11-08 1987-01-08 Hoelter Heinz Preparation of catalysts for NOx reduction, preferably downstream of fossil-fuel power stations, by ceramicising the composition with the exclusion of air
CN110508257A (en) * 2019-08-23 2019-11-29 煤炭科学技术研究院有限公司 A kind of use in waste water treatment charcoal-porous ceramic composite adsorption filtrate and its preparation method and application

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631875A1 (en) * 1976-04-08 1977-10-13 Ngk Insulators Ltd CERAMIC CORDIERITE COMPOSITE BODY AND PROCESS FOR ITS PRODUCTION
DE2748471A1 (en) * 1976-11-27 1978-06-01 Mitsui Petrochemical Ind Supported catalyst for redn. of nitrogen oxide with ammonia - contg. base transition metal cpd. on titanium oxide and clay mineral

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631875A1 (en) * 1976-04-08 1977-10-13 Ngk Insulators Ltd CERAMIC CORDIERITE COMPOSITE BODY AND PROCESS FOR ITS PRODUCTION
DE2748471A1 (en) * 1976-11-27 1978-06-01 Mitsui Petrochemical Ind Supported catalyst for redn. of nitrogen oxide with ammonia - contg. base transition metal cpd. on titanium oxide and clay mineral

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3440808A1 (en) * 1984-11-08 1986-05-07 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Catalyst for NOx production, preferably downstream of fossil-fuel power stations
DE3523356A1 (en) * 1984-11-08 1987-01-08 Hoelter Heinz Preparation of catalysts for NOx reduction, preferably downstream of fossil-fuel power stations, by ceramicising the composition with the exclusion of air
CN110508257A (en) * 2019-08-23 2019-11-29 煤炭科学技术研究院有限公司 A kind of use in waste water treatment charcoal-porous ceramic composite adsorption filtrate and its preparation method and application

Also Published As

Publication number Publication date
DE3422779C2 (en) 1988-10-13

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