DE580566C - Process for the production of gases with a high carbon oxide content by gasifying a solid fuel by means of oxygen and water vapor or carbonic acid - Google Patents
Process for the production of gases with a high carbon oxide content by gasifying a solid fuel by means of oxygen and water vapor or carbonic acidInfo
- Publication number
- DE580566C DE580566C DES89803D DES0089803D DE580566C DE 580566 C DE580566 C DE 580566C DE S89803 D DES89803 D DE S89803D DE S0089803 D DES0089803 D DE S0089803D DE 580566 C DE580566 C DE 580566C
- Authority
- DE
- Germany
- Prior art keywords
- gases
- oxygen
- carbonic acid
- water vapor
- production
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J1/00—Production of fuel gases by carburetting air or other gases without pyrolysis
- C10J1/207—Carburetting by pyrolysis of solid carbonaceous material in a fuel bed
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Description
Verfahren zur Gewinnung von Gasen mit hohem Kohlenoxydgehalt durch Vergasung eines festen Brennstoffs mittels Sauerstoffs und Wasserdampfs bzw. Kohlensäure Es ist bekannt, daß man bei Vergasung der festen Brennstoffe mit Sauerstoff, der mit Wasserdampf oder Kohlensäure gemischt ist, an Kohlenoxyd sehr reiche Gase erhalten kann, die zweckmäßig zur Herstellung von organischen sauerstoffhaltigen Verbindungen, wie Methanol ti. dgl., oder zur Gewinnung von Wasserstoff oder Stickstoff-Wasserstoff-Mischungen, die zur Ammoniaksynthese geeignet sind oder auch ihres holten Heizwertes wegen als Brenngase Verwendung finden.Process for the production of gases with a high carbon oxide content Gasification of a solid fuel by means of oxygen and water vapor or carbonic acid It is known that when gasifying solid fuels with oxygen, the mixed with water vapor or carbonic acid, gases very rich in carbon dioxide are obtained can, which are useful for the production of organic oxygen-containing compounds, like methanol ti. like., or for the production of hydrogen or nitrogen-hydrogen mixtures, which are suitable for ammonia synthesis or because of their calorific value as Find fuel gases use.
Der Betrieb der für eine solche Vergasung bestimmten Gaserzeuger verursacht häufig Schwierigkeiten, unabhängig davon, ob die Asche als feste Schlacke oder in geschmolzenem Zustande entfernt wird. Werden die Schlacken in fester Form abgezogen, so rühren diese Schwierigkeiten vom Austreten der Flammen oder vom Eintreten der Luft während des Entfernens der Asche her. Hierbei muß die Gaserzeugung unterbrochen werden. Wenn die Schlacken in geschmolzenem Zustand beseitigt werden, so wird das feuerfeste Material, das mit der geschmolzenen Schlacke in Berührung kommt, trotz seiner besonderen Qualität über kurz oder lang untauglich und muß notwendigerweise erneuert werden.The operation of the gas generators intended for such gasification causes frequent difficulties, regardless of whether the ash is as solid slag or in molten state is removed. If the slag is removed in solid form, so these difficulties stem from the escape of the flames or from the entry of the Air while removing the ashes. The gas generation must be interrupted here will. If the slags are removed in a molten state, so will that refractory material that comes into contact with the molten slag, despite its special quality sooner or later unfit and must necessarily to be renewed.
Es wurde nun gefunden, daß ein Zusammenballen der Schlacke verhindert werden kann, wenn man in Gaserzeugern, in denen die Vergasung eines festen Brennstoffs mittels Sauerstoffs und Wasserdampfs oder Sauerstoffs undKohlensäure stattfindet, wesentlich höhere Temperaturen anwendet, als bisher in Gaserzeugern üblich ist. Das wird erfindungsgemäß dadurch erreicht, daß die Zusammensetzung und die Strömungsgeschwindigkeit der eingeführten Gase in Richtung der Temperatursteigerung beeinflußt werden. Zu diesem Zweck werden für die Vergasung Sauerstoff-Wasserdampf-Mischungen bzw. Kohlensäure-Sauerstoff-Mischungen verwandt, die nicht mehr als 3o Gewichtsprozent an Wasserdampf bzw. Kohlensäure enthalten. Diese Mischungen werden in den Gaserzeuger mit einer Geschwindigkeit eingeführt, die nicht unter io m in der Sekunde liegt, so daß die Verbrennung in sehr lebhafter und rascher Weise erfolgt. Bei der hierdurch sehr erhöhten Temperatur erfährt die Asche eine chemische Umwandlung, die ihr Zusammensintern verhindert. Man erzielt vielmehr eine Schlacke in Form von sehr feinem Staub, so daß die Asche durch die aus dem Gaserzeuger austretenden Gase mit fortgerissen wird.It has now been found that the slag prevents agglomeration can be when going into gas generators, in which the gasification of a solid fuel takes place by means of oxygen and water vapor or oxygen and carbonic acid, uses significantly higher temperatures than has been customary in gas generators up to now. This is achieved according to the invention in that the composition and the flow rate of the gases introduced can be influenced in the direction of the increase in temperature. to For this purpose, oxygen-steam mixtures or carbonic acid-oxygen mixtures are used for gasification related that do not contain more than 3o percent by weight of water vapor or carbonic acid contain. These mixtures enter the gas generator at one rate introduced, which is not less than 10 m per second, so that the combustion in takes place in a very lively and rapid manner. At the very high temperature as a result the ashes undergo a chemical transformation that prevents them from sintering together. Rather, you get a slag in the form of very fine dust, so that the ash is carried away by the gases emerging from the gas generator.
Unter diesen Bedingungen enthält die staubförmige Asche die Alkali- oder Erdalkalibestandteile des angewandten Brennstoffs in der Form von freien Oxyden oder Hydroxyden, d. h. nicht an Säuren gebunden.Under these conditions, the powdery ash contains the alkali or alkaline earth components of the fuel used in the form of free oxides or hydroxides, d. H. not bound to acids.
Die aus dem Gaserzeuger austretenden Gase werden zweckmäßig zur Kühlung mit Wasser gewaschen. Hierbei erhält man eine Lösung von Alkali- und Erdalkalihydroxyden, welche außer der Kohlensäure auch die in den Gasen enthaltenen Schwefelverbindungen abbindet und somit fast vollständig entfernt.The gases emerging from the gas generator are useful for cooling washed with water. This gives a solution of alkali and alkaline earth hydroxides, Which binds not only the carbonic acid but also the sulfur compounds contained in the gases and thus almost completely removed.
Da das einfache Waschen nicht immer zur Abscheidung der ganzen Asche genügt, folgen auf den Kühler mehrere Staubkammern, die gegebenenfalls mit Staubabscheidern versehen sind, um eine vollkommene Entfernung der Asche aus den Gasen zu erzielen.As the simple washing does not always lead to the separation of the whole ashes is sufficient, several dust chambers follow the cooler, which may be equipped with dust separators are provided in order to achieve a complete removal of the ash from the gases.
Die Vorteile dieses Verfahrens bestehen einmal darin, daß der Gaserzeuger ununterbrochen arbeiten kann, und daß das Material, aus dem er gebaut ist, geschont wird und infolgedessen eine längere Lebensdauer aufweist. Ferner werden die in der Asche enthaltenen Alkali- und Erdalkaliverbindungen gleichzeitig zum Abbinden der in dem gewonnenen Gas enthaltenen Schwefelverbindungen und der Kohlensäure nutzbar gemacht.The advantages of this process are that the gas generator can work continuously and that the material from which it is made is spared and as a result has a longer service life. Furthermore, those in the Ash contained alkali and alkaline earth compounds at the same time to set the Sulfur compounds and carbonic acid contained in the gas obtained can be used made.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT580566X | 1928-02-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE580566C true DE580566C (en) | 1933-07-12 |
Family
ID=11288221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES89803D Expired DE580566C (en) | 1928-02-29 | 1929-02-06 | Process for the production of gases with a high carbon oxide content by gasifying a solid fuel by means of oxygen and water vapor or carbonic acid |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE580566C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE865624C (en) * | 1941-11-08 | 1953-02-02 | Metallgesellschaft Ag | Method and device for gasifying solid fuels |
DE879448C (en) * | 1941-09-02 | 1953-06-11 | Koppers Gmbh Heinrich | Method and device for the production of high-temperature fuel gas from fuel dust |
DE897747C (en) * | 1942-09-13 | 1953-11-23 | Koppers Gmbh Heinrich | Process and device for generating fuel gas from dust-like or fine-grain fuels |
DE916447C (en) * | 1942-07-12 | 1954-08-09 | Koppers Gmbh Heinrich | Process for producing pure carbon dioxide gas |
-
1929
- 1929-02-06 DE DES89803D patent/DE580566C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE879448C (en) * | 1941-09-02 | 1953-06-11 | Koppers Gmbh Heinrich | Method and device for the production of high-temperature fuel gas from fuel dust |
DE865624C (en) * | 1941-11-08 | 1953-02-02 | Metallgesellschaft Ag | Method and device for gasifying solid fuels |
DE916447C (en) * | 1942-07-12 | 1954-08-09 | Koppers Gmbh Heinrich | Process for producing pure carbon dioxide gas |
DE897747C (en) * | 1942-09-13 | 1953-11-23 | Koppers Gmbh Heinrich | Process and device for generating fuel gas from dust-like or fine-grain fuels |
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