DE2716907B2 - Use of coke dust or coke grits as activated coke - Google Patents

Use of coke dust or coke grits as activated coke

Info

Publication number
DE2716907B2
DE2716907B2 DE2716907A DE2716907A DE2716907B2 DE 2716907 B2 DE2716907 B2 DE 2716907B2 DE 2716907 A DE2716907 A DE 2716907A DE 2716907 A DE2716907 A DE 2716907A DE 2716907 B2 DE2716907 B2 DE 2716907B2
Authority
DE
Germany
Prior art keywords
coke
dust
coal
rapid
coals
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.)
Withdrawn
Application number
DE2716907A
Other languages
German (de)
Other versions
DE2716907A1 (en
Inventor
Ernst Dipl.-Ing. Dr.-Ing. 5270 Gummersbach Schuster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Zosen Inova Steinmueller GmbH
Original Assignee
L&C Steinmueller GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by L&C Steinmueller GmbH filed Critical L&C Steinmueller GmbH
Priority to DE2716907A priority Critical patent/DE2716907B2/en
Priority to AU34635/78A priority patent/AU3463578A/en
Priority to ZA00782003A priority patent/ZA782003B/en
Priority to FR7810537A priority patent/FR2396063A1/en
Priority to JP4339478A priority patent/JPS53128601A/en
Publication of DE2716907A1 publication Critical patent/DE2716907A1/en
Publication of DE2716907B2 publication Critical patent/DE2716907B2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00Preliminary treatment of ores or scrap
    • C22B1/14Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24Binding; Briquetting ; Granulating
    • C22B1/242Binding; Briquetting ; Granulating with binders
    • C22B1/244Binding; Briquetting ; Granulating with binders organic
    • C22B1/245Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/04Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Coke Industry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Industrial Gases (AREA)

Claims (1)

27 !6 90727! 6 907 Patentanspruch:Claim: Verwendung von Koksstaub oder Koksgrieß, der durch Schnellentgasung oder Schneilteilvergasung gewonnen wurde, als Aktivkoks.Use of coke dust or coke grits, the was obtained by rapid degassing or rapid gasification, as activated coke. Die vorliegende Erfindung betrifft die Verwendung von Koksstaub oder Koksgrieß, der durch Schnellentgasung oder Schneilteilvergasung gewonnen wurde, als Aktivkoks.The present invention relates to the use of coke dust or coke grits, which is produced by rapid degassing or Schneilteilvergasung was obtained as activated coke. Zur Erzeugung von druckfestem, im Hochofen einsetzbaren Stückkoks in der Kammerverkokung werden an die einzusetzende Kohle bezüglich der Backfähigkeit, des Blähgrades, des Gehaltes an flüchtigen Bestandteilen usw. bestimmte Anforderungen gestellt, die in der Regel nur Fettkohlen genügen. Der Anteil der Fettkohlen an den Kohlevorkommen ist aber relativ gering, so daß zur Erzeugung von druckfestem Koks inzwischen auch weniger geeignete Kohlen, wie Gas- und Gas-Flamm-Kohlen herangezogen werden.For the production of pressure-resistant lump coke that can be used in the blast furnace in the chamber coking are related to the charcoal to be used in terms of baking ability, the degree of expansion and the volatile content Ingredients, etc. set certain requirements, which usually only meet fatty carbons. Of the The proportion of fatty coals in the coal deposits is relatively small, so that for the production of pressure-resistant Coke meanwhile also less suitable coals, such as gas and gas flame coals are used. Es ist bekannt, diesen Kohlen zur Verkokung ein Magerungsmittel zuzusetzen, wozu Magerkohle, zu Staub gemahlener Stückkoks oder aus Kohlenstaub erzeugter Staubkoks benutzt wird. Der Anteil dieser Magerkohle kann zwischen 10 und 25% liegen.It is known to use these coals for coking Adding lean agents, including lean coal, lump coke ground to dust or from coal dust coke produced is used. The proportion of this lean coal can be between 10 and 25%. In der chemischen und metallurgischen Industrie wird aus Kohlenstaub erzeugter Koksstaub bzw. Koksgrieß als Reduktionsmittel eingesetzt, z. B. bei Sinteranlagen.In the chemical and metallurgical industries, coke dust or coke grit is produced from coal dust used as a reducing agent, e.g. B. in sintering plants. Verfahren in der Chemie, auch in anderer Industrie, insbesondere nach Verschärfung der Bestimmungen zur Reinhaltung der Luft, machen es notwendig, Abgase aus derartigen Verfahren, die in die Atmosphäre geführt werden, vorher zu reinigen. Dazu wird in häufigen Fällen Aktivkohle benutzt, die, da schwierig herstellbar, sehr teuer ist Zur Oberflächenbindung von Schadgasen müssen diese Aktivkohlen sehr große äußere und innere Oberflächen aufweisen.Process in chemistry, also in other industries, in particular after the tightening of the regulations on Keeping the air clean, make it necessary to get exhaust gases out such processes, which are released into the atmosphere, to be cleaned beforehand. This is done in frequent In some cases, activated carbon is used, which is very expensive because it is difficult to manufacture. For surface binding of harmful gases These activated carbons have to be very large external and internal Have surfaces. Die vorliegende Erfindung hat sich die Aufgabe gestellt, an Stelle der teuren Aktivkohle ein in seinen Eigenschaften gleichwertiges jedoch kostengünstigeres Produkt für die Abgasbehandlung bereitzustellen.The present invention has set itself the task of replacing the expensive activated carbon with one in his Properties to provide equivalent but more cost-effective product for exhaust gas treatment. Zur Lösung dieser Aufgabe wird die Verwendung von Koksstaub oder Koksgrieß, der durch Schnellentgasung 5 oder Schnellteilvergasung gewonnen wurde, als Aktivkoks vorgeschlagen.To solve this problem, the use of coke dust or coke grit, which is produced by rapid degassing 5 or Schnellteilvergasung was obtained, proposed as activated coke. Bei der Schnellentgasung werden Temperaturen zwischen 800 und 12000C angewandt, wobei die Entgasungsreaktionen in wenigen Sekunden, im allge-For rapid degassing, temperatures between 800 and 1200 0 C are used, with the degassing reactions in a few seconds, generally K) meinen weniger als 3 SeIo, ablaufen. Bei der Schnellteilvergasung liegt das Temperaturgebiet höher, im allgemeinen über 1200° C, die Behandlungszeit dauert hier auch nur Sekunden oder Bruchteile von Sekunden. Beide Verfahren besitzen eine außerordent-Hch hohe Aufheizgeschwindigkeit für den zu behandelnden kohlenstaub oder Kohlengrieß, die Größenordnungen von WC/Min, erreichen kann. Während dieser schnellen Aufheizung überschreitet die Kohle, sofern sie eine Backfähigkeit besitzt, den sogenannten plastischen Bereich mit Temperaturen von etwa 450 bis 550° C In diesem Bereich verändert sich das Kohlenkorn sehr stark, backende Kohlen werden zunächst zu Hohlkugeln, sehr schwach oder nicht backende Kohlen zu einem schwammartigen Gebilde. Im Verlauf der weiteren Erwärmung brechen die Hohlkugeln durch steigenden Innendruck auf, während aus den Schalbruchstücken weiter flüchtige Bestandteile abgegeben werden.
Die bei der Schnellentgasung und Schnellteilvergasung auftretende Veränderung des Kohlekornes auf dem Weg zum Kokskorn führt auch zur Bildung einer außerordentlich hohen inneren und äußeren Oberfläche und verleiht diesem Koksstaub eine Reaktionsfähigkeit, die der Aktivkohle nahekommt. Damit wird dieser
K) think less than 3 SeIo to expire. In the case of rapid part gasification, the temperature range is higher, generally above 1200 ° C, and the treatment time here only lasts seconds or fractions of a second. Both processes have an extremely high heating rate for the pulverized coal or pulverized coal to be treated, which can reach magnitudes of WC / min. During this rapid heating, the charcoal, if it is able to bake, exceeds the so-called plastic range with temperatures of around 450 to 550 ° C. In this area, the grain of coal changes very strongly, baking coals initially become hollow spheres, very weak or non-baking coals to a sponge-like structure. In the course of further heating, the hollow spheres break open due to increasing internal pressure, while more volatile constituents are released from the fragments of the formwork.
The change in the grain of coal occurring during rapid degassing and rapid part gasification on the way to the coke grain also leads to the formation of an extremely high inner and outer surface and gives this coke dust a reactivity that comes close to that of activated carbon. This becomes this
r> Koksstaub verwendungsfähig für Anwendungsgebiete, die bisher der Aktivkohle vorbehalten blieben.r> Coke dust can be used for areas of application, which were previously reserved for activated carbon. Der Vorteil der vorliegenden Erfindung liegt darin, daß der durch ein besonderes Behandlungsverfahren des Kohlenstaubes erzeugte Koksstaub oder Koksgrieß, der mit seiner sehr großen äußeren und inneren Oberfläche Eigenschaften aufweist, die denen der Aktivkohle gleichwertig sind, kostengünstiger herstellbar ist als die relativ teure Aktivkohle.The advantage of the present invention is that the by a special treatment method of the coal dust produced coke dust or coke grit, which with its very large outer and inner Surface has properties that are equivalent to those of activated carbon, can be produced more cost-effectively is than the relatively expensive activated carbon.
DE2716907A 1977-04-16 1977-04-16 Use of coke dust or coke grits as activated coke Withdrawn DE2716907B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2716907A DE2716907B2 (en) 1977-04-16 1977-04-16 Use of coke dust or coke grits as activated coke
AU34635/78A AU3463578A (en) 1977-04-16 1978-03-31 Rapid degassing of coal
ZA00782003A ZA782003B (en) 1977-04-16 1978-04-07 Process for the high-speed degasification and/or high-speed partial gasification of coal
FR7810537A FR2396063A1 (en) 1977-04-16 1978-04-10 Rapid carbonisation or partial gasification of coal - with coke used as coking additive, reducing agent and active carbon
JP4339478A JPS53128601A (en) 1977-04-16 1978-04-14 Quick degassing and quick partial gasification of coal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2716907A DE2716907B2 (en) 1977-04-16 1977-04-16 Use of coke dust or coke grits as activated coke

Publications (2)

Publication Number Publication Date
DE2716907A1 DE2716907A1 (en) 1978-10-19
DE2716907B2 true DE2716907B2 (en) 1979-08-09

Family

ID=6006447

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2716907A Withdrawn DE2716907B2 (en) 1977-04-16 1977-04-16 Use of coke dust or coke grits as activated coke

Country Status (5)

Country Link
JP (1) JPS53128601A (en)
AU (1) AU3463578A (en)
DE (1) DE2716907B2 (en)
FR (1) FR2396063A1 (en)
ZA (1) ZA782003B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104745211A (en) * 2015-03-23 2015-07-01 七台河宝泰隆煤化工股份有限公司 Coke for gasification and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1201247A (en) * 1957-08-13 1959-12-29 Ruhrgas Ag High strength coke manufacturing process
DE1471554A1 (en) * 1963-06-06 1968-12-12 Bergwerksverband Gmbh Process for coking moist, highly volatile coal
DE1571677A1 (en) * 1966-01-28 1970-12-23 Steinmueller Gmbh L & C Combination of a dust degassing system with a chamber charring system, in particular for the utilization of coke dust as a lean agent

Also Published As

Publication number Publication date
JPS53128601A (en) 1978-11-09
DE2716907A1 (en) 1978-10-19
FR2396063A1 (en) 1979-01-26
AU3463578A (en) 1979-10-04
ZA782003B (en) 1979-03-28

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