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Rheinische Braunkohlenwerke AG Patents
Assignee:
Rheinische Braunkohlenwerke AG
Address:
Cologne, DE
No. of patents:
36
Patents:












Patent Number Title Of Patent Date Issued
4982027 Process for the reprocessing of carbon containing wastes January 1, 1991
This invention relates to an improved process for the reprocessing of carbon containing wastes by pretreating the same thermally in the presence or absence of hydrogen, followed by hydrogenation of the pretreated material at elevated temperature and at least 200 bar hydrogen pressure.
4931260 Process and apparatus for the treatment of granular solid materials in a fluidized layer June 5, 1990
Solid material which is carried out of a fluidized bed reactor with the gas discharged therefrom and which is separated off in a separator is returned to the reactor by way of a recycling means. To reduce problems caused by virtue of differing pressure levels within the system in the rec
4930359 Apparatus for preparing samples from a flow of bulk material June 5, 1990
An apparatus for preparing samples taken from a flow of bulk material for the purposes of determining representative chemical and/or physical characteristics of the sampled material. The sampled material is removed in the form of a mix of fine and coarser particles of dust from the flow
4919687 Apparatus for the production of gas containing hydrogen and carbon monoxide from solid fuel April 24, 1990
In a process and apparatus for the production of gas containing hydrogen and carbon monoxide from a solid fuel in a fluidized bed, the solid particles contained in the product gas are separated off in a cyclone separator and recycled to the fluidized bed by way of a recycling conduit.
4881949 Method of starting a gasifier November 21, 1989
For starting a gasifier for the gasification of carbonaceous fuel with an oxygen-bearing gasification agent in a fluidized bed, the gasifier is filled with an inert gaseous medium and put under an increased pressure. After sealing integrity has been established, a combustible gas mixture
4852994 Process for the production of gas containing hydrogen and carbon monoxide from solid fuel August 1, 1989
In a process and apparatus for the production of gas containing hydrogen and carbon monoxide from a solid fuel in a fluidized bed, the solid particles contained in the product gas are separated off in a cyclone separator and recycled to the fluidized bed by way of a recycling conduit.
4839391 Method and reactor for catalytic methanization of a gas containing CO, CO.sub.2 and H.sub.2 June 13, 1989
A single stage methanization reactor and process are made to yield a product gas of high methane content as well as useful superheated steam without overheating the catalyst bed in which a synthesis gas containing, CO, CO.sub.2 and H.sub.2 is converted into product gas. A variety of
4839148 Method of removing SO.sub.x and NO.sub.x from effluent gas June 13, 1989
For the removal of SO.sub.x and NO.sub.x from effluent gas, the gas, before being passed through a Selective Catalytic Reduction catalyst bed for reduction of at least a part of the nitrogen oxides in the gas, is subjected to at least substantially complete desulfurization in a coke
4779412 Power generation process using a gas turbine October 25, 1988
In a power generation process using a gas turbine for conversion of the energy of gas which is produced by the gasification of a fossil carbon-bearing material such as brown coal, the gas is initially cleaned of dust and optionally desulfurised in the hot condition. The gas is then p
4740217 Gasification process using fluidized bed reactor with concentric inlets April 26, 1988
In a process for the gasification of carbonaceous substances, exothermic and endothermic gasification agents are injected into the reaction area through at least one nozzle comprising at least two coaxial pipes, the outer pipe terminating short of the end of the inner pipe, at a distance
4726936 Apparatus for injecting a substance into a reaction vessel February 23, 1988
In a process for injecting a radioactive sample of a substance into a reaction vessel, the sample is first enclosed in a first container in which it is irradiated, and then the first container with sample is placed in a second container which is separated from the reaction vessel by way
4659557 Process for producing ferrous sulphate in granule form April 21, 1987
In a process for making ferrous sulphate in granule form, ferrous sulphate heptahydrate is mixed with fine-grain brown coal or lignite having a low water content, in such an amount that the resulting mixture is pourable.
4652407 Gas cooling and washing apparatus March 24, 1987
In a dip-type cooler for cooling and washing flowing dust-laden hot gas, having a venturi passage which opens in a container with washing fluid therein, the edge of a feed pipe for feed of gas into the cooler, the edge of a protective tube surrounding the feed pipe and the upper edge of
4569228 Probe tube which can be introduced into a reaction container for detecting the operating conditi February 11, 1986
A probe tube which is introduced into a reaction container for measuring the operating condition of a medium in the interior of the container has a first seal which is resistant to temperature and a second seal which is resistant to pressure and gas-tight. Those seal respectively close t
4518567 Reactor for the gasification of solid carbonaceous materials May 21, 1985
In a reactor for gasification of solid carbonaceous materials in a fluidized bed under elevated pressure and at high temperatures using a hot gasification agent, a feed device for the gasification agent is installed in the lower part of the reactor chamber and traverses this chamber in t
4498632 Process for grind-drying wet solid fuel February 12, 1985
In a process and apparatus for grinding and drying a solid fuel such as brown coal or lignite to form dust, in a fan type mill, in the presence of a hot drying gas with a low oxygen content, fine components of the fuel in dust form are separated out before the grinding step and dried. Th
4494960 Process for the production of pumpable coal slurries January 22, 1985
In a process for the production of pumpable coal slurries for use in high-pressure hydrogenation, such an amount of finely divided coal is mixed into an oil which boils at a temperature of higher than about 200.degree. C., as not to exceed the limit of pumpability in respect of the s
4478725 Process for the oxidation of hydrogen sulphide dissolved in the waste water from a coal gasifica October 23, 1984
Hydrogen sulphide in the waste water from a coal gasification installation is subjected to an oxidizing treatment in the presence of the very fine-grain residual coke which, being washed out of the product gas, is suspended in the waste water, the residual coke particles thus serving as
4464479 Method for treating red mud August 7, 1984
In order to improve the handling capability of red mud, it is mixed with fine-grain coal material such as brown coal or lignite in dust form, in a ratio by weight of between 0.5-10:1. The liquid present in the red mud is bound by the very fine coal admixed therewith so that the resulting
4463690 Furnace chamber lining structure August 7, 1984
A lining for a furnace chamber which is at least approximately round in cross-section is divided into at least two layers in a radial direction and into at least two portions in an axial direction. A gas seal is disposed between the lining portions, the gas seal being in the form of a
4450777 Process for removing noxious substances containing fluorine and/or sulfur from gaseous or liquid May 29, 1984
A process is provided for removing noxious pollutants containing sulfur and/or fluorine compounds from gaseous or liquid media by adsorption of the compounds on coke. The coke is produced by conventional processes from lignite (brown coal) containing alkaline ash compounds, particularly
4447319 Process for separating sand from a brown coal or lignite material containing sand May 8, 1984
In a process for separating sand from a brown coal or lignite material containing sand, wherein the sand is present entirely or predominantly in a grain size range covering only a part of the grain size range of the brown coal or lignite, with the grain size of the coarsest grains of the
4428769 Process for injecting a reducing agent including ash-bearing bituminous coal into the hearth of January 31, 1984
In a process for injecting a fine-grain carbon carrier including ash-bearing bituminous or hard coal into a blast furnace hearth, use is made of a mix of fine-grain bituminous coal and at least one other solid fine-grain ash-bearing carbon carrier. The composition of the mix is so se
4406747 Apparatus for the cooling of solid residues of gasification September 27, 1983
The present specification describes and claims a method and apparatus for use in cooling the solid residue of gasification of a reactor operated at a pressure above atmospheric for the gasification of carbonaceous materials. The residue of gasification is conducted out of the reactor
4266968 Process for injecting brown coal into a blast furnace May 12, 1981
In a process for injecting fine-grain brown coal or lignite into a blast furnace through tuyere arches thereof, the initial speed at which coal dust, after leaving the supply conduit, moves towards the center of the blast furnace hearth is substantially lower than the speed at which the
4259158 Apparatus for producing abrasion resistant coke from brown coal briquets March 31, 1981
A method of producing abrasion resistant coke from brown coal briquets in a shaft furnace comprises charging the coke briquets into the top of the furnace and removing coke from the bottom of the furnace while directing inert hot combustion gases into the furnace and through the briquets
4117102 Thermochemical process for producing methane and oxygen from carbon oxides and water September 26, 1978
The invention comprises a recirculatory process for producing hydrocarbons and oxygen in which sulphur dioxide is reacted with iodine and water to form a hydrogen polyiode or a hydrate thereof and sulphuric acid, the sulphuric acid is separated and thermally decomposed to form water sulp
4109701 Method of conveying heat energy August 29, 1978
Disclosed is an improvement in the process of conveying heat energy by means of the exothermic and endothermic reactions involved in the conversion and re-forming of methane. According to the invention, methane is steam-reformed in an endothermic reaction, utilizing heat energy, to a
4085200 Thermochemical process for producing methane and oxygen April 18, 1978
The invention comprises a recirculatory process for producing methane and oxygen in which iodine and an oxide in a lower valency stage are reacted with methanol, dimethylether or a mixture thereof at an elevated temperature to form the corresponding oxide having a higher valency stage
4080436 Thermoelectrochemical cyclical process for production of hydrogen and oxygen from water March 21, 1978
A process for producing hydrogen and oxygen from water in a cyclical process wherein aqueous sulfuric acid, containing hydrogen bromide, is electrolyzed to form hydrogen and bromine. Bromine is reacted with sulfur dioxide and water into sulfuric acid and hydrogen bromide. The hydrogen
4056607 Thermochemical process for the production of hydrogen and oxygen from water November 1, 1977
In a thermochemical circulation process, hydrogen and oxygen are obtained from water wherein sulfuric acid and the paraffin hydrocarbon corresponding to the olefin used are formed from water, sulfur dioxide and a low-molecular weight olefin, particularly ethylene; the sulfuric acid is
4039651 Process for closed-cycle thermochemical production of hydrogen and oxygen from water August 2, 1977
A closed-cycle multi-step thermochemical process is described for the production of hydrogen and oxygen from water. The disclosed process utilizes auxiliary compounds of the system iron-chlorine. By using the following two basic process steps:A. reacting an iron oxide with hydrogen chlor
4013781 Process for obtaining hydrogen and oxygen from water using iron and chlorine March 22, 1977
Hydrogen and oxygen are obtained from water using a multi-step circulatory process using iron compounds and chlorine as adjuvants. Using three beds, respectively containing magnesium chloride, iron oxide and cuprous chloride, and by a four-step process involving passing steam through the
4011305 Process for obtaining hydrogen and oxygen from water March 8, 1977
A process for the dissociation of water into hydrogen and oxygen in a multi-stage closed cycle process using a system involving at least one metallic element having multiple valency and at least one halogen, characterized in that a halide of the multiple valency metallic element is s
3980447 Process for the manufacture of brown coal briquettes September 14, 1976
A process of manufacturing briquettes from brown coal includes drying brown coal, which is preferably in fine granular form. The dried brown coal is then heated at a first rate up to a temperature in a range of from about 300.degree. to about 320.degree. C. The brown coal is subsequently
3954444 Process for the direct reduction of iron ores May 4, 1976
A process for the direct reduction of iron ores using a reducing gas mixture which is passed through a shaft furnace containing the ore to be reduced is disclosed. The process is characterized in that the partial flow of reducing gas mixture is removed from the furnace approximately at

 
 
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