Abstract: The gasification of solid carbonaceous materials such as coal is achieved by directing a stream containing the carbonaceous materials onto a high temperature hot spot which has been formed on the surface of a bath of molten iron by oxygen jets blown thereagainst, the stream containing the carbonaceous materials emanating from a non-submerged, top-blowing lance, the oxygen jets emanating from the same lance or from different lances, and the bath of molten iron being contained in a reactor such that its total volume remains essentially constant.

Abstract: In a process for the direct production of sponge iron particles and liquid crude iron from iron ore in lump form, which is reduced in a direct reduction unit and fed in a hot condition to a melting gasifier, the sponge iron particles which are discharged from the direct reduction unit are separated into a fine grain fraction and a coarse grain fraction, and only the fine grain fraction is fed to the melting gasifier. That ensures economy of operation, without an excess of gas.

Abstract: A method of gasifying carbon (C) in the form of coal, hydrocarbons and/or hydrocarbon compounds, comprising the steps of into a reactor vessel holding a molten iron bath to inject carbon, oxygen and iron oxides beneath the surface of the molten iron bath, where the iron oxides constitute a coolant and where carbon is injected in a stoichiometric excess relative to oxygen included in the bath in the form of oxides, and where the molten iron bath has such a carbon content that it solves-in carbon. According to the invention, the reactor vessel is caused to have an inner total pressure of 2 to 50 bar, preferably 4 to 10 bar.Hereby the gas production and the production of pig iron increase. Furthermore, the dust formation and the lining wear are reduced substantially.

Abstract: In a melting/gasifying furnace including a coke-filled layer, coal is gasified by oxygen blown through tuyeres into a hot reducing gas which is caused to ascend through the coke-filled layer so as to melt reduced iron supported on the top of the coke-filled layer. The resulting molten iron flows down through the coke-filled layer, and is collected in the lowermost region of the coke-filled layer and discharged therefrom, while the hot gas is recovered. The thus recovered gas is fed into a shaft reduction furnace to reduce iron ores, and the thus formed reduced iron is supplied into the melting/gasifying furnace. In addition to the coal, a variety of fuels mainly comprising carbon and hydrogen such as heavy oil, natural gas, etc. are used for gasification. The fuel is blown through the tuyeres and/or charged through middle openings disposed above the tuyeres.

Abstract: Apparatus for gasification of carbon (C) in the form of carbon, hydrocarbons and/or hydrocarbon compounds, comprising a reactor (1) into which injection of carbon, oxygen gas and iron oxides takes place, beneath the surface of an iron melt, and in which carbon is injected in stoichiometric excess in relation to the amount of oxygen in the form of oxidic compounds contained in the melt, the reactor having a total inner pressure exceeding atmospheric pressure.According to the invention an exhaust gas pipe (6) from a reactor (1) makes a gas-tight connection with a cooler (8), which together with the reactor (1) forms a sealed unit; and a regulating valve (13) for adjusting and maintaining an overpressure in said unit is provided and placed on the cool side (12) of the cooler (8).

Abstract: An arrangement for producing gaseous products from solid and liquid, ash-containing fuels and mixtures thereof in an air stream in a reactor. The fuels are introduced into the reactor parallel to the axis thereof. The solid and liquid ash constituents are extensively separated from the gaseous products of the fuel in a slag bath before further cooling-off. The gaseous products are reversed by 180.degree. after leaving the reactor, and subsequently flow into one or more consecutively or parallel connected annular chambers, which are provided with heat exchanger heating surfaces and concentrically surround the reactor. The gaseous products are cooled in these annular chambers.

Abstract: A coal gas supply method converts a carbon carrier in a reactor into a coal gas by the addition of oxygen and feeds the coal gas to fuel consumers. To ensure a continuous fuel supply to the fuel consumers during the coal gasification process, a branch current of the coal gas produced is liquefied and stored. At the same time the oxygen stored in liquid form is drawn from a tank, evaporated and used in the reactor. If there is a breakdown in the coal gasification process, the stored quantity of coal gas is evaporated gradually and fed to the consumers. At the same time, oxygen drawn from an oxygen inlet pipe is liquefied and stored. Instead of coal gas, another fuel gas such as natural gas can also be used.

Abstract: Organic materials are separated and retrieved by mixing them with a liquid medium which is solid at room temperature and which is at atmosphere pressure. The material and medium are pumped by an electromagnetic pump while creating turbulence and then the velocity of the medium is decreased while heat is applied. Gases generated during the application of heat are collected. The medium is then cooled and returned to the pool at atmospheric pressure.

Abstract: The gasification of solid carbonaceous materials such as coal is achieved by directing a stream containing the carbonaceous materials onto a high temperature hot spot which has been formed on the surface of a bath of molten iron by oxygen jets blown thereagainst, the stream containing the carbonaceous materials emanating from a non-submerged, top-blowing lance, the oxygen jets emanating from the same lance or from different lances, and the bath of molten iron being contained in a reactor such that its total volume remains essentially constant.

Abstract: The invention relates to a method in the gasification of sulphur-containing carbonaceous material using metal smelts. When gasifying such carbonaceous material in a metal smelt, the material is introduced to a gasifying reactor containing an iron and/or manganese smelt having a temperature of between 1100.degree. and 1600.degree. C., suitably 1150.degree.-1250.degree. C., the smelt being substantially saturated with respect to sulphur and carbon. The carbonaceous material is oxidized to carbon monoxide and the sulphur content forms a matte phase containing a high percentage of sulphur, which phase is tapped off. Residual non-combustible material is collected as a slag on the surface and is removed together therewith. If so desired, the matte can be granulated and roasted to recover the sulphur and metal contents. Carbonaceous material incorporating pyrolysible constituents is suitably pyrolysed in a pyrolysis medium at a temperature of between 450.degree.-800.degree. C.

Abstract: A device for the gasification of carbon containing material to obtain the continuous production of gas, essentially a mixture of carbon monoxide and hydrogen, by using the molten metal bath process is provided. The carbon material, oxidizing agents, and slag-forming additives as needed are introduced into a reactor below the surface of a molten metal bath. The reactor is provided with outlets for the slag, gases, and molten metal. The reactor is also provided with the ability to tilt, swivel, or rotate about a horizontal axis. This rotational movement causes the molten metal bath to alter its location within the reactor, allowing for replacement of the input apparatus of the raw materials, which are normally below the surface, without the necessity of draining the molten metal bath from the reactor.

Abstract: In a process for gasification of solid carbonaceous material such as coal, powdered coal is top-blown onto a molten iron bath stored in a furnace through a non-submerged lance toward a hot spot formed by means of a jet of oxygen and steam top-blown through a non-submerged lance, the coal being blown by means of a carrier gas, and flux is optionally added into the furnace by the lump or blown toward the hot spot, thereby resulting in the coal being gasified. The ratio L/L.sub.o of the depression depth L of the molten iron bath to the molten iron bath depth L.sub.o is maintained from 0.05 to 0.15, and the blowing velocity of the solid carbonaceous material is maintained from 50 to 300 m/sec so as to suppress the formation of an adhered mass on the upper part of the furnace, hood or lance.

Abstract: Disclosed is a method for recovering oil and gas from carbonaceous materials utilizing two molten baths. In the first molten bath reaction vessel, the carbonaceous material is thermally devolatilized. Part of the first melt from the first reaction vessel containing non-volatile constituents is passed to the second molten bath reaction vesel which contains a different melt at a higher temperature. The two melts are only partially soluble in each other so that they can be easily separated. Oxygen, air or oxides are charged to the second reaction vessel for gasifying residual quantities of carbon by oxidation. The first melt is returned to the first reaction vessel from the second reaction vessel. The melt in the first reaction vessel may comprise lead or zinc and be maintained at a temperature of 500.degree. C., while the melt in the second reaction vessel may comprise raw iron and be maintained at a temperature of 1200.degree. C.

Abstract: In a device for the gasification of carbon and/or carbon-containing media, in particular for the continuous production of a gas essentially containing CO and H.sub.2 with a molten bath of iron or an iron alloy, a reactor receives the carbon-containing media and oxidizing gasification media under the surface of the molten bath, and outlets are provided for gas and for removing at least one liquid phase, in particular slag. The reactor is stationary and is tightly sealed to a gas outlet and to a liquid outlet. In a wall region of the reactor and close to the floor thereof a plurality of nozzles are provided for feeding the gasification media. The nozzles are distributed almost symmetrically with respect to a vertical plane which extends axially with respect to the liquid outlet and to the reactor floor about the circumference of the wall region.

Abstract: The invention is concerned with novel apparatus and process for converting crude carbon such as coal, carbonaceous wastes and the like into valuable chemical products and/or energy. A mass of solid crude carbonaceous fuel is fed into a high temperature liquid which acts as a solvent for carbon at a temperature sufficient to carbonize the mass and by which the carbon is separated from impurities. Volatile fractions are removed from the mass which acts as a distillation column. Air, or another oxygen source, is introduced into the reactor wherein it reacts with the carbon dissolved in the liquid therein, which may preferably be iron to form a hot fuel gas. The hot fuel gas is then used to produce useful energy, generally via a stepwise procedure.

Abstract: An apparatus for gasification of carbonaceous matter by plasma arc pyrolysis is disclosed. In one embodiment, a refractory-lined furnace is provided with a depression along its base for holding a pool of molten metal which acts as the external electrode for a bank of long arc column plasma torches which provide a heat mass for the process. The plasma arc pressure imparts momentum to the surface of the melt and causes it to flow in cusping eddy currents during the process. Crushed coal is deposited through the roof of the furnace by a rotary feeder in continuous plural streams. The coal is devolatilized in a matter of milliseconds and the volatiles are cracked as the coal falls by gravity through the interior of the furnace. The remaining carbon-rich char collects at plural sites on the surface of the melt and the mounds of char are rotated by the eddy currents. Steam is continuously injected into the furnace to produce hydrocarbon gases through reaction with the carbon-rich char.

Abstract: This application describes a process and apparatus for gasifying sulphur bearing coal in a molten iron bath which is covered with a sulphur absorbing slag. In order to make the process practical, the hot liquid slag is transferred to a second vessel in which it is desulfurized by contact with an oxygen containing gas, and then returned as hot liquid slag to the iron bath for reuse.

Abstract: The high temperature gasification of solid fuel or mixtures of solid and liquid fuels is carried out by a method and apparatus wherein the gasified product from a high temperature gasification chamber having a slag bath therein is fed into a first dust collector. Gases, including vapors or aerosols, are fed from the dust collector into a waste heat boiler to reduce the temperature of the gases down to about 250.degree. C. The solids which essentially include flue coke are discharged from the dust collector into a separate heat exchanger wherein the temperature of the solids is reduced down to about 200.degree. C. The cooled solids and the cooled gases are fed into an absorption chamber wherein for a period of 1 to 10 seconds, the aerosols are absorbed into the flue coke. The absorption chamber is connected to a second dust collector that separates the gases from the flue coke having the absorbed aerosols.

Abstract: Nozzles introduce jet streams of fine-grain fuel and a gasification medium downwardly toward the surface of a slag bath at the bottom of a cylindrical reactor shaft within a vessel to impinge upon the surface of liquid slag which is discharged through a centrally-arranged overflow in the bottom of the vessel. The nozzles are arranged at an angle within a range of 35.degree. to 40.degree. with respect to the horizontal and positioned so that the jet streams impinge upon the surface of the slag at points defined by a plurality of concentric circles with respect to the overflow to circulate and produce a resulting movement of the liquid slag toward the overflow while maintaining a high temperature and homogeneous slag bath. The nozzles are further positioned so that an angle of about 10.degree. is defined between each jet stream and a vertical tangential plane to the concentric circle at the point where the jet stream impinges.

Abstract: A method and apparatus for gasifying fine-grained fuel, e.g., coal and a gasifying medium, e.g., oxygen in a slag bath generator. The fine-grained fuel and gasifying medium are injected at a downwardly-inclined angle to tangentially impinge with a turbulent rotary motion upon a slag bath in the lower end of a vertically-extending reactor shaft within a pressure vessel. A desired slag bath level is maintained in the bottom of the vessel by using an overflow to discharge slag from the bath through the bottom of the vessel. A first treatment zone for the high temperature gasification of the fuel is formed between the slag bath and a circular constriction to the reactor shaft. A second treatment zone for the final gasification of the fuel at a lower temperature as compared with the temperature in the first treatment zone extends above the circumferential constriction along the reactor shaft. Fuel and gases passing through the circumferential constriction are essentially free of a turbulent rotary motion.

Abstract: A process for converting inferior heavy oil into light oil and gasifying the same characterized in that a hydrocracking zone comprising coke fluidized bed and a gasification zone comprising a molten alkali salt are provided, the raw oil is fed in said hydrocracking zone to be hydrocracked and produce coke to form a fludized bed, and a part of the raw oil is fed in said gasification zone for obtaining the fluidizing gas.

Abstract: Heat is generated by combustion of coal or like carbonaceous fuel reactant dissolved in molten salt. The generated heat is transferred to steam by an alternating sequence of direct contact heat exchanges of the salt and steam with a common heat transfer medium.