EP0114188B1 - Process and apparatus for the elimination of heavy tar obtained by the cooling of coke oven gas - Google Patents
Process and apparatus for the elimination of heavy tar obtained by the cooling of coke oven gas Download PDFInfo
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- EP0114188B1 EP0114188B1 EP83109174A EP83109174A EP0114188B1 EP 0114188 B1 EP0114188 B1 EP 0114188B1 EP 83109174 A EP83109174 A EP 83109174A EP 83109174 A EP83109174 A EP 83109174A EP 0114188 B1 EP0114188 B1 EP 0114188B1
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- tar
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
- C10B57/06—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing additives
Definitions
- the invention relates to a method for eliminating the thick tea obtained in the cooling of coke oven gas by placing it on the charge coal and to a mixing container which is particularly suitable for carrying out this method.
- tar-containing condensates separate from the raw gas.
- These condensates are first introduced into a suitable collecting container (tar separation container), in which they are broken down into a water, a tar and a thick tar phase by phase separation.
- the tar phase is normally further dewatered in a pressure separator, with a certain proportion of so-called thick tar being able to separate out of the tar in addition to the water in the pressure separator.
- thick tar refers to a particularly viscous and muddy tar fraction which has a particularly high proportion of solids, in particular coal and coke dust.
- the composition is in the following range:
- the resulting Dickteermenge is at a Beschikkung the coke oven battery with Nadedkohle about 3-9 kg per 100 m thick tar n 3 coke oven gas. If, on the other hand, the coke oven battery is charged with preheated coal, the amount of thick tar can increase by 50-100% of the above values. Due to its high solids content, processing of the thick tea in a subsequent tar distillation is not possible. However, since there is no other suitable processing option for the thick tar, it must be removed in a suitable manner.
- the invention is therefore based on the object of creating a method for eliminating the thick tar obtained in the cooling of coke oven gas by means of a charge on the coal which requires little work and at the same time enables an environmentally friendly and largely automated method of working. It is also intended to ensure that the thick tar is applied to the feed coke as evenly as possible.
- the method used to achieve this object is characterized in that the thick tar is comminuted to a particle size of - 1 mm and diluted by adding a tar-water mixture, the resulting mixture at a temperature between 55 and 75 ° C. held and then placed on the coal on the raw coal conveyor belt.
- the thick tar obtained is first comminuted in a solids mill to a particle size of ss 1 mm and then diluted by adding a tar-water mixture.
- the tar-water mixture is preferably added in such an amount that the resulting mixture contains 15 to 30% by weight of thick tar and 70 to 85% by weight of the tar-water mixture.
- the water content of the tar-water mixture used as a diluent can vary within a wide range.
- the water content can preferably be between 40 and 60% by weight. However, applications are also possible in which it is below 5% by weight.
- the mixture obtained during the dilution normally already has an elevated temperature. After dilution, however, it must be ensured that the resulting mixture is kept at a temperature between 55 and 75 ° C. Here, the temperature is set so that the viscosity of the mixture is brought to a value which enables the same to be distributed evenly.
- the warm mixture is then pressed onto the distributing devices, through which it is evenly applied to the feed coal located on the raw coal conveyor belt. Together with this coal, the thick tar then gets back into the oven chambers of the coke oven battery.
- Coking processes are known in which limited amounts of normal tar or a certain tar oil fraction have been added to the feed mixture.
- this addition was made solely for the purpose of improving the coking properties of the coal, the tar or the tar oil fraction added serving as a binder and the coal being subjected to subsequent compression by stamping or briquetting.
- these known methods were unable to provide any suggestions for the formation of the method according to the invention, since on the one hand no thick tar is used and on the other hand no subsequent compression of the coal sprayed with thick tar is provided in the method according to the invention. That means that the thick tar should not serve as a binding agent and neither otherwise improve the coking properties of the coal.
- the addition of thick tar in the process according to the invention is also not limited in quantity, but is based exclusively on the accumulation of thick tar in the gas treatment plant, it being possible for the entire accumulating thick tar to be fed onto the coal used.
- the flow diagram shows only the parts of the plant that are absolutely necessary for the process explanation, while the other parts of the plant, in particular the upstream and downstream parts of the plant, are not shown for gas generation and treatment.
- the figure shows a separating container (1) in a characteristic embodiment, which is common in coking technology.
- this separating tank (1) the three phases of water, tar and thick tar are separated from the tar-containing condensate in the order given.
- the thick tar phase that accumulates on the bottom of the separating container (1) is grasped by the scraper chain conveyor (2) arranged just above the bottom (1) and transported from there to the tip of the leg 3. From here, the thick tar falls through the discharge opening (4) into the solid mill (5) below. In this, the coarse pieces of thick tar are ground to a particle size of - 1 mm.
- the thick tar particles then enter the mixing container (22), which is provided with a heating jacket (7).
- the tar-water mixture required for diluting the thick tar is introduced into the mixing container (22) via the line (8) provided with the valve (9).
- the screw conveyor (23) which is driven by the external motor (6), is arranged on the bottom of the mixing container (22).
- the temperature of the mixture in the mixing container (22) is kept between 55 and 75 ° C, preferably at 60 ° C.
- the temperature is continuously monitored by the temperature measuring device (10), the measured value being transmitted via line (11) to the controller (12) which controls the heating of the heating jacket (7).
- the temperature is controlled within the specified range so that the mixture in the mixing container (22) has a sufficiently low viscosity which allows the same to be distributed evenly.
- the warm mixture which preferably has a temperature of approximately 60 ° C., is conveyed to the suction point of the submersible pump (13) by means of the screw conveyor (23).
- This can be, for example, a so-called channel wheel pump, which presses the heated mixture via the line (14) onto the thick tar nozzle (15).
- the mixture is sprayed uniformly onto the feed coal located on the raw coal conveyor belt (16) through the thick tar nozzle (15).
- the valve (17) is arranged in the line (14) shortly before the thick tar nozzle (15) and is automatically closed when the raw coal conveyor belt (16) is at a standstill. This prevents a further task of the mixture containing thick tar during the belt standstill.
- the valve (17) When the valve (17) is closed, the mixture is returned to the mixing container (22) via the return line (18).
- the conical pipe constriction (19) is provided in the return line (18) as a throttle point for building up pressure. Since considerable pipe erosion is to be expected at this pipe constriction (19), it is made of an erosion-resistant material and constructed in such a way that it can be easily replaced. If, for certain reasons, the system fails, the valve (20) in the flushing water line (21) is opened, whereby the lines (14) and (18) carrying the tea can be flushed with water. This ensures that no tar deposits can build up in these lines.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Working-Up Tar And Pitch (AREA)
- Coke Industry (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Beseitigung des bei der Kühlung von Koksofengas anfallenden Dickteeres durch Aufgabe auf die Einsatzkohle sowie einen zur Durchführung dieses Verfahrens besonders geeigneten Mischbehälter.The invention relates to a method for eliminating the thick tea obtained in the cooling of coke oven gas by placing it on the charge coal and to a mixing container which is particularly suitable for carrying out this method.
Es ist bekannt, daß sich bei der Kühlung von Koksofengas aus dem Rohgas teerhaltige Kondensate ausscheiden. Diese Kondensate werden dabei zunächst in einen geeigneten Sammelbehälter (Teerscheidebehälter) eingeleitet, in dem sie durch Phasentrennung in eine Wasser-, eine Teer- sowie eine Dickteerphase zerlegt werden. Daran anschließend wird normalerweise die Teerphase in einem Druckscheider weiter entwässert, wobei sich im Druckscheider aus dem Teer neben dem Wasser auch noch einmal ein gewisser Anteil an sogenanntem Dickteer ausscheiden kann. Als Dickteer wird hierbei eine besonders zähflüssige und schlammige Teerfraktion bezeichnet, die einen besonders hohen Anteil an Feststoffen, insbesondere Kohle- und Koksstaub, aufweist. Bei einem aus dem rohen Koksofengas abgeschiedenen typischen Dickteer liegt beispielsweise die Zusammensetzung im folgenden Bereich :
Die anfallende Dickteermenge beträgt bei einer Beschikkung der Koksofenbatterie mit Naßkohle etwa 3-9 kg Dickteer pro 100 mn 3 Koksofengas. Wird dagegen die Koksofenbatterie mit vorerhitzter Kohle beschickt, so kann sich die anfallende Dickteermenge um 50-100 % der vorstehend genannten Werte erhöhen. Wegen seines hohen Feststoffgehaltes ist jedoch eine Verarbeitung des Dickteeres in einer nachgeschalteten Teerdestillation nicht möglich. Da aber auch keine andere sinnvolle Verarbeitungsmöglichkeit für den Dickteer gegeben ist, muß dieser in geeigneter Weise beseitigt werden.The resulting Dickteermenge is at a Beschikkung the coke oven battery with Naßkohle about 3-9 kg per 100 m thick tar n 3 coke oven gas. If, on the other hand, the coke oven battery is charged with preheated coal, the amount of thick tar can increase by 50-100% of the above values. Due to its high solids content, processing of the thick tea in a subsequent tar distillation is not possible. However, since there is no other suitable processing option for the thick tar, it must be removed in a suitable manner.
In der Verfahrensbeschreibung der DE-OS 20 00 130, die an sich ein Verfahren zur Reinhaltung des Kreisiauf-Berieseiungswassers für die Steigrohre von Verkokungsöfen betrifft, wird zwar auf die Möglichkeit hingewiesen, den aus dem Dickteerkasten abgezogenen Dickteer der Kokskohle zuzugeben und in die Ofenkammern zurückzuführen. Irgendwelche Einzelheiten, wie ein derartiger Vorschlag realisiert werden soll, sind der Entgegenhaltung jedoch nicht zu entnehmen.In the process description of DE-OS 20 00 130, which per se relates to a process for keeping the Kreisiauf irrigation water clean for the risers of coking ovens, reference is made to the possibility of adding the thick tar withdrawn from the thick tar box to the coking coal and returning it to the furnace chambers . However, no details of how such a proposal is to be implemented can be found in the document.
Der Erfindung liegt deshalb die Aufgabe zu Grunde, ein Verfahren zur Beseitigung des bei der Kühlung von Koksofengas anfallenden Dickteeres durch Aufgabe auf die Einsatzkohle zu schaffen, das einen geringen Arbeitsaufwand erfordert und gleichzeitig eine umweltfreundliche und weitgehend automatisierte Arbeitsweise ermöglicht. Hierbei soll außerdem gewährleistet werden, daß der Dickteer möglichst gleichmäßig auf die Einsatzkohie aufgegeben wird.The invention is therefore based on the object of creating a method for eliminating the thick tar obtained in the cooling of coke oven gas by means of a charge on the coal which requires little work and at the same time enables an environmentally friendly and largely automated method of working. It is also intended to ensure that the thick tar is applied to the feed coke as evenly as possible.
Das der Lösung dieser Aufgabe dienende Verfahren ist erfindungsgemäß dadurch gekennzeichnet, daß der Dickteer bis auf eine Partikelgröße von -- 1 mm zerkleinert und durch Zugabe eines Teer-Wasser-Gemisches verdünnt wird, wobei das resultierende Gemisch bei einer Temperatur zwischen 55 und 75 °C gehalten und daran anschließend auf die auf dem Rohkohleförderband befindliche Einsatzkohle aufgegeben wird.The method used to achieve this object is characterized in that the thick tar is comminuted to a particle size of - 1 mm and diluted by adding a tar-water mixture, the resulting mixture at a temperature between 55 and 75 ° C. held and then placed on the coal on the raw coal conveyor belt.
Das heißt, beim erfindungsgemäßen Verfahren wird der anfallende Dickteer zunächst in einer Feststoffmühle auf eine Partikelgröße von ss 1 mm zerkleinert und anschließend durch Zugabe eines Teer-Wasser-Gemisches verdünnt.This means that in the process according to the invention, the thick tar obtained is first comminuted in a solids mill to a particle size of ss 1 mm and then diluted by adding a tar-water mixture.
Die Zugabe von Teer-Wasser-Gemisch erfolgt dabei vorzugsweise in einer solchen Menge, daß das resultierende Gemisch 15 bis 30 Gew.-% Dickteer und 70 bis 85 Gew.-% Teer-Wasser-Gemisch enthält.The tar-water mixture is preferably added in such an amount that the resulting mixture contains 15 to 30% by weight of thick tar and 70 to 85% by weight of the tar-water mixture.
Der Wassergehalt des als Verdünnungsmittel verwendeten Teer-Wasser-Gemisches kann dabei in einem weiten Bereich schwanken. Vorzugsweise kann der Wassergehalt zwischen 40 und 60 Gew.-% betragen. Es sind aber auch Anwendungsfälle möglich, bei denen er unter 5 Gew.-% liegt. Das bei der Verdünnung anfallende Gemisch besitzt normalerweise bereits eine erhöhte Temperatur. Im Anschluß an die Verdünnung muß jedoch dafür gesorgt werden, daß das anfallende Gemisch bei einer Temperatur zwischen 55 und 75 °C gehalten wird. Hierbei wird die Temperatur so eingestellt, daß die Viskosität des Gemisches auf einen Wert gebracht wird, der ein gleichmäßiges Verteilen desselben ermöglicht. Das warme Gemisch wird sodann auf die Verteileinrichtungen gedrückt, durch die es gleichmäßig auf die auf dem Rohkohleförderband befindliche Einsatzkohle aufgegeben wird. Zusammen mit dieser Einsatzkohle gelangt der Dickteer danach zurück in die Ofenkammern der Koksofenbatterie.The water content of the tar-water mixture used as a diluent can vary within a wide range. The water content can preferably be between 40 and 60% by weight. However, applications are also possible in which it is below 5% by weight. The mixture obtained during the dilution normally already has an elevated temperature. After dilution, however, it must be ensured that the resulting mixture is kept at a temperature between 55 and 75 ° C. Here, the temperature is set so that the viscosity of the mixture is brought to a value which enables the same to be distributed evenly. The warm mixture is then pressed onto the distributing devices, through which it is evenly applied to the feed coal located on the raw coal conveyor belt. Together with this coal, the thick tar then gets back into the oven chambers of the coke oven battery.
Es sind zwar Verkokungsverfahren bekannt, bei denen der Einsatzkohie beschränkte Mengen an normalem Teer bzw. einer bestimmten Teerölfraktion zugesetzt wurden. Diese Zugabe erfolgte jedoch ausschließlich zu dem Zweck, die Verkokungseigenschaften der Einsatzkohle zu verbessern, wobei der zugesetzte Teer bzw. die zugesetzte Teerölfraktion als Bindemittel dient und die Einsatzkohle einer nachfolgenden Verdichtung durch Stampfen oder Brikettieren unterworfen wird. Diese bekannten Verfahren konnten jedoch keine Anregungen für das Zustandekommen des erfindungsgemäßen Verfahrens vermitteln, da dabei einerseits kein Dickteer zum Einsatz gelangt und andererseits bei erfindungsgemäßen Verfahren auch keine nachfolgende Verdichtung der mit Dickteer besprühten Einsatzkohle vorgesehen ist. Das heißt, der Dickteer soll nicht als Bindemittel dienen und auch keine anderweitige Verbesserung der Verkokungseigenschaften der Einsatzkohle bewirken. Deshalb ist die Dickteerzugabe beim erfindungsgemäßen Verfahren auch nicht mengenmäßig beschränkt, sondern richtet sich ausschließlich nach dem Dickteeranfall in der Gasbehandlungsanlage, wobei der gesamte anfallende Dickteer auf die Einsatzkohle aufgegeben werden kann.Coking processes are known in which limited amounts of normal tar or a certain tar oil fraction have been added to the feed mixture. However, this addition was made solely for the purpose of improving the coking properties of the coal, the tar or the tar oil fraction added serving as a binder and the coal being subjected to subsequent compression by stamping or briquetting. However, these known methods were unable to provide any suggestions for the formation of the method according to the invention, since on the one hand no thick tar is used and on the other hand no subsequent compression of the coal sprayed with thick tar is provided in the method according to the invention. That means that the thick tar should not serve as a binding agent and neither otherwise improve the coking properties of the coal. For this reason, the addition of thick tar in the process according to the invention is also not limited in quantity, but is based exclusively on the accumulation of thick tar in the gas treatment plant, it being possible for the entire accumulating thick tar to be fed onto the coal used.
Weitere Einzelheiten des erfindungsgemäßen Verfahrens sollen nachfolgend an Hand des in der Abbildung dargestellten Fließschemas näher erläutert werden. Das Fließschema zeigt dabei nur die zur Verfahrenserläuterung unbedingt erforderlichen Anlageteile, während die übrigen Anlageteile, insbesondere die vor- und nachgeschalteten Anlageteile, zur Gaserzeugung und -behandlung nicht dargestellt sind.Further details of the method according to the invention will be explained in more detail below using the flow diagram shown in the figure. The flow diagram shows only the parts of the plant that are absolutely necessary for the process explanation, while the other parts of the plant, in particular the upstream and downstream parts of the plant, are not shown for gas generation and treatment.
Die Abbildung zeigt einen Scheidebehälter (1) in einer charakteristischen Ausführungsform, die in der Kokereitechnik üblich ist. In diesem Scheidebehälter (1) scheiden sich aus dem teerhaitigen Kondensat die drei Phasen Wasser, Teer und Dickteer in der angegebenen Reihenfolge ab. Die sich am Boden des Scheidebehälters (1) ansammelnde Dickteerphase wird dabei von dem dicht oberhalb des Bodens (1) angeordneten Kratzkettenförderer (2) erfaßt und von diesem bis zur Spitze des Schenkels 3 transportiert. Von hier aus fällt der Dickteer durch die Austragesöffnung (4) in die darunter befindliche Feststoffmühle (5). In dieser erfolgt eine Aufmahlung der groben Dickteerstücke auf eine Partikelgröße von -- 1 mm. Anschließend gelangen die Dickteerpartikel in den Mischbehälter (22), der mit einem Heizmantel (7) versehen ist. Das zur Verdünnung des Dickteeres erforderliche Teer-Wasser-Gemisch wird über die mit dem Ventil (9) versehene Leitung (8) in den Mischbehälter (22) eingeleitet. Um Ablagerungen an den Behälterwandungen zu vermeiden, ist am Boden des Mischbehälters (22) die Förderschnecke (23) angeordnet, die von dem außenliegenden Motor (6) angetrieben wird. Durch die Beheizung des Heizmantels (7) wird die Temperatur des Gemisches im Mischbehälter (22) zwischen 55 und 75 °C, vorzugsweise bei 60 °C, gehalten. Die Temperatur wird dabei durch das Temperaturmeßgerät (10) laufend überwacht, wobei der gemessene Wert über die Leitung (11) auf den Regler (12) übertragen wird, der die Beheizung des Heizmantels (7) steuert. Die Temperatur wird innerhalb des angegebenen Bereiches so geregelt, daß das Gemisch im Mischbehälter (22) eine ausreichend niedrige Viskosität aufweist, die eine gleichmäßige Verteilung desselben gestattet. Das vorzugsweise eine Temperatur von ca. 60 °C aufweisende, warme Gemisch wird mittels der Förderschnekke (23) zur Ansaugstelle der Tauchpumpe (13) gefördert. Bei dieser kann es sich beispielsweise um eine sogenannte Kanalradpumpe handeln, die das erwärmte Gemisch über die Leitung (14) auf die Dickteerdüse (15) drückt. Durch die Dickteerdüse (15) wird das Gemisch gleichmäßig auf die auf dem Rohkohleförderband (16) befindliche Einsatzkohle aufgesprüht. In der Leitung (14) ist kurz vor der Dickteerdüse (15) das Ventil (17) angeordnet, das bei einem Stillstand des Rohkohleförderbandes (16) automatisch geschlossen wird. Dadurch wird eine weitere Aufgabe des dickteerhaltigen Gemisches während des Bandstillstandes verhindert.The figure shows a separating container (1) in a characteristic embodiment, which is common in coking technology. In this separating tank (1), the three phases of water, tar and thick tar are separated from the tar-containing condensate in the order given. The thick tar phase that accumulates on the bottom of the separating container (1) is grasped by the scraper chain conveyor (2) arranged just above the bottom (1) and transported from there to the tip of the
Bei geschlossenem Ventil (17) wird das Gemisch über die Rückführungsleitung (18) in den Mischbehälter (22) zurückgegeben. Als Drosselstelle zum Druckaufbau ist in der Rückführleitung (18) die konische Rohrverengung (19) vorgesehen. Da an dieser Rohrverengung (19) mit erheblichem Erosionserscheinungen zu rechnen ist, wird dieselbe aus einem erosionsfesten Material ausgeführt und so konstruiert, daß sie sich leicht auswechseln läßt. Fällt aus bestimmten Gründen die Anlage einmal aus, so wird das Ventil (20) in der Spülwasserleitung (21) geöffnet, wodurch dieteerführenden Leitungen (14) und (18) mit Wasser gespült werden können. Damit wird sichergestellt, daß sich in diesen Leitungen keine Teerablagerungen festsetzen können.When the valve (17) is closed, the mixture is returned to the mixing container (22) via the return line (18). The conical pipe constriction (19) is provided in the return line (18) as a throttle point for building up pressure. Since considerable pipe erosion is to be expected at this pipe constriction (19), it is made of an erosion-resistant material and constructed in such a way that it can be easily replaced. If, for certain reasons, the system fails, the valve (20) in the flushing water line (21) is opened, whereby the lines (14) and (18) carrying the tea can be flushed with water. This ensures that no tar deposits can build up in these lines.
Das vorstehend skizzierte Verfahren erlaubt mit einem verhältnismäßig geringen technischen Aufwand eine weitgehend kontinuierliche und vollautomatische Beseitigung des anfallenden Dickteeres, wobei die bisher bekannten Einrichtungen zur Dickteerabscheidung keiner Veränderung unterworfen werden müssen. Es versteht sich dabei von selbst, daß anstelle der in der Abbildung dargestellten einzigen Dickteerdüse (15) auch deren mehrere vorgesehen sein können, wenn dies im Interesse einer gleichmäßigen Verteilung des dickteerhaltigen Gemisches erforderlich ist.The method outlined above permits, with relatively little technical effort, a largely continuous and fully automatic removal of the thick tar obtained, the previously known devices for thick tar separation not having to be subjected to any change. It goes without saying that instead of the single thick tar nozzle (15) shown in the figure, several can be provided if this is necessary in the interest of a uniform distribution of the thick tar-containing mixture.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59149848A JPS6065343A (en) | 1983-09-16 | 1984-07-20 | Instruction processor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823247390 DE3247390A1 (en) | 1982-12-22 | 1982-12-22 | METHOD AND DEVICE FOR ELIMINATING THICKENER TARGET WHICH COOLING COOKING OVEN GAS |
| DE3247390 | 1982-12-22 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0114188A2 EP0114188A2 (en) | 1984-08-01 |
| EP0114188A3 EP0114188A3 (en) | 1985-05-15 |
| EP0114188B1 true EP0114188B1 (en) | 1986-12-03 |
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ID=6181344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83109174A Expired EP0114188B1 (en) | 1982-12-22 | 1983-09-16 | Process and apparatus for the elimination of heavy tar obtained by the cooling of coke oven gas |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4554053A (en) |
| EP (1) | EP0114188B1 (en) |
| CA (1) | CA1218324A (en) |
| DE (2) | DE3247390A1 (en) |
| FI (1) | FI73456C (en) |
| MX (1) | MX167820B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3508822A1 (en) * | 1985-03-13 | 1986-09-18 | Dr. C. Otto & Co Gmbh, 4630 Bochum | METHOD FOR ELIMINATING THE DICK TEAR RESULTING FROM COOKING GAS COOLING, AND SYSTEM FOR IMPLEMENTING THE METHOD |
| KR100581724B1 (en) | 2004-11-17 | 2006-05-23 | 장대현 | Apparatus for removing byproduct of coke gas |
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| US1888465A (en) * | 1927-10-21 | 1932-11-22 | Barrett Co | Operation of by-product coke oven plants |
| NL156233B (en) * | 1949-10-24 | Societe Anonyme, Societe Industrielle Pour La Diffusion D'equipement Et De Materiel "Sidemat", Parijs. | CONNECTION DEVICE FOR EQUIPMENT TO A FUEL TANK. | |
| US2610944A (en) * | 1951-01-23 | 1952-09-16 | Standard Oil Dev Co | Treatment of carbonaceous solids |
| GB775748A (en) * | 1955-03-08 | 1957-05-29 | Koppers Co Inc | Improvements in coking iron oxide-coal mixtures |
| US3146183A (en) * | 1961-05-25 | 1964-08-25 | Republic Steel Corp | Process for mixing tar-decanter sludge with coke oven feed coal |
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| US3962043A (en) * | 1972-02-23 | 1976-06-08 | Metallgesellschaft Aktiengesellschaft | Process for producing fine-grained coke by degasification of coal |
| NO752886L (en) * | 1974-08-26 | 1976-02-27 | Hodogaya Chemical Co Ltd | |
| US4086144A (en) * | 1974-11-16 | 1978-04-25 | Bergwerksverband Gmbh | Process and apparatus for the separation of float tars in the tar separator of a coking installation |
| IT1060528B (en) * | 1975-01-09 | 1982-08-20 | Bergwerksverband Gmbh | PROCEDURE FOR THE REDUCTION OF THE DUST LOSS IN THE INTRODUCTION OF HEATED COAL IN THE COOKING OVENS |
| ZA753956B (en) * | 1975-06-20 | 1977-07-27 | H Hahn | Improvements in carbonaceous material |
| DE2600130C2 (en) * | 1976-01-03 | 1982-07-22 | Carl Still Gmbh & Co Kg, 4350 Recklinghausen | Process for keeping the circulating sprinkling water for the riser pipes of coking ovens clean |
| DE2640787C3 (en) * | 1976-09-10 | 1980-09-25 | Fa. Carl Still Gmbh & Co Kg, 4350 Recklinghausen | Method and device for the production of blast furnace coke |
| JPS5460278A (en) * | 1977-10-21 | 1979-05-15 | Kureha Chem Ind Co Ltd | Diaphragm type electrolytic bath |
| EP0045148B1 (en) * | 1980-07-30 | 1985-05-08 | Imperial Chemical Industries Plc | Electrode for use in electrolytic cell |
| DE3134809A1 (en) * | 1981-09-03 | 1983-03-10 | Ruhrkohle Ag, 4300 Essen | Coking plant feed mixtures with auxiliaries which are mixed with the feed coals |
-
1982
- 1982-12-22 DE DE19823247390 patent/DE3247390A1/en not_active Withdrawn
-
1983
- 1983-09-16 EP EP83109174A patent/EP0114188B1/en not_active Expired
- 1983-09-16 DE DE8383109174T patent/DE3368083D1/en not_active Expired
- 1983-09-19 FI FI833341A patent/FI73456C/en not_active IP Right Cessation
- 1983-11-10 MX MX199357A patent/MX167820B/en unknown
- 1983-11-18 US US06/553,476 patent/US4554053A/en not_active Expired - Lifetime
- 1983-12-20 CA CA000443708A patent/CA1218324A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FI73456C (en) | 1987-10-09 |
| CA1218324A (en) | 1987-02-24 |
| EP0114188A2 (en) | 1984-08-01 |
| US4554053A (en) | 1985-11-19 |
| DE3247390A1 (en) | 1984-06-28 |
| MX167820B (en) | 1993-04-12 |
| EP0114188A3 (en) | 1985-05-15 |
| FI833341A (en) | 1984-06-23 |
| FI73456B (en) | 1987-06-30 |
| FI833341A0 (en) | 1983-09-19 |
| DE3368083D1 (en) | 1987-01-15 |
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