Abstract: Using a method and installation for separating acid components, dust and tar from hot gases of gasification installations, an economical method using a corresponding installation is to be created, which enables acid compounds HF, HCl, H2S, dust and tar to be reliably separated in the highest possible temperature range. The aim is achieved in that the media flow leaving the gasification at above 700° C. is fed with additives to a desulfurization process and subsequently to a combined cyclone 9 having associated filter cartridges 17 in a common vessel 8, and the gas is withdrawn for further use downstream of the filter cartridges.

Abstract: With a device for feeding a fluid, such as a gas or a liquid, into a solid-conveying line, wherein the fluid is first passed into a ring space that surrounds the solid-conveying line, and from there into the solid-conveying line, conveying of coal in the form of dust or flue ash, for example, is to be undertaken in gasification systems, at elevated temperatures, at great output and great operational reliability. This is achieved in that the solid-conveying line is shorter, in the ring space for forming a ring gap, than the length of the ring space, wherein installations for producing a vortex flow of the fluid that is introduced are provided in the ring space.

Abstract: A process for joint entrained-bed gasification of ash-containing solid fuels and liquid fuels which are fed separately of each other to the coal gasification reactor via several burners, said burners having a concentric firing angle of greater than 0 degree such that soot formation is reduced and the conversion efficiency is increased, and the solid is conveyed to the gasification reactor together with an inert gas, and at least part of the ash-containing solid fuel contains fine coal particles which originate from coal mining and are not suited for fixed-bed gasification, and the liquid ash-containing fuel contains residues from a fixed-bed gasification.

Abstract: A method of removing acid gases from a fluid flow, using an absorption agent comprising an aqueous solution of 2,2?-(ethylenedioxy)-bis-(ethylamine).

Abstract: A method for extracting flue gases from a coke oven chamber, wherein the flue gases that develop briefly during the process of discharging and charging the coke cake from and to the coke oven chamber are extracted by a vacuum generated in the headspace above the coke cake. The vacuum in the headspace above the coke oven chamber is generated via channels through the lateral walls of the coke oven chamber or in the coke cake. The vacuum is generated in the secondary heating chamber and, by way of example, can be extracted again from a vacuum supply tank which, for the time that the coke oven chamber doors are open, is connected to the secondary heating chamber by opening shut-off devices in the connecting line. The method avoids the undesirable emission of flue gases into the atmosphere. A device whereby the method can be carried out is also disclosed.

Abstract: The invention pertains to a method for operating a coke furnace arrangement, wherein the coke oven gas accumulated during the coking process is utilized as a working gas. According to the invention, a synthesis gas produced from fossil fuel, preferably coal, by means of a gasification process is supplied as fuel gas in order to provide at least part of the thermal energy required for the coking process.

Abstract: A method for production of coke chamber-compatible coal briquettes. Horizontally feeding coal into a pressing mould formed from a plate having two parallel terminating walls, which are stationary with respect to the direction of movement of the plate, and a terminating stop wall disposed transversely to the direction of movement of the plate. The side of the pressing mould open to coal is closed by a stationary wall, and the plate is locked in the horizontal direction for the pressing operation. The coal is compacted by a tamping device, having a vertically acting force onto pressing mould to produce a coal briquette. After completion of the coal briquette, the plate is moved horizontally in the longitudinal direction so that the space in the pressing mould becoming free in the horizontal direction is used for producing the next coal briquette. A device for carrying out the method is also disclosed.

Abstract: A method for compensating flue gas enthalpy losses of heat-recovery coke ovens, having a coke oven bank, connected to one or more boilers by one or more a flue gas channels. The operation of the coke oven chambers is periodically interrupted, during which time the coke cake is removed, and the individual coke oven chambers are kept hot during the interruption of the operation by an an externally fired additional burner providing hot flue gas. The resulting heat flow remains the same in comparison to the normal operation. In this way, the boilers, which are typically used to produce steam, can be operated economically.

Abstract: A porously coated, densely sintered ceramic membrane, which can be produced from a green membrane and subsequent sintering. The membrane is coated with ceramic material, which contains noble metals, which can be produced by application and subsequent thermal treatment. The noble metals are contained at a concentration of 2.5 to 5 mass percent.

Abstract: Process for the continuous treatment of soot water which arises during partial oxidation of liquid hydrocarbons containing heavy metals. The soot water is centrifuged at a pressure of up to 5 bar and a temperature of up to 150° C. in a pre-dewatering stage, without the addition of additives, to 10% solids content, a pasty sludge rich in heavy metals is obtained and a centrate low in heavy metals arises. The centrate at least to some extent, is fed back into the gasification process again as useable water.

Abstract: A device for cooling the solid matter from a coal gasification. The device includes a container with a feed part, a cooling part and a venting part. Lines arranged transverse to the flow direction are located inside of the cooling part that are grouped in two kinds, the one carrying liquid and the other carrying gas. The liquid carrying lines are closed in the interior of the cooling part and are provided for the heat exchange. The gas carrying lines that are gas permeable into the interior of the cooling part in such a way that solid matter comprising primarily cooled slag, ash and flue dust is cooled and the remaining gas present in and between the solid matter particles is exchanged. A method for cooling down the solid matter and for removing the remaining gas from the particles is also disclosed.

Abstract: A process for the dehydrogenation of alkanes. In several reactors of the adiabatic, allothermal or isothermal type or combinations thereof a gaseous alkane-containing material stream is passed through a catalyst bed in continuous operating mode. The gas stream produced contains an alkene, hydrogen and a non-converted alkane. In order to achieve a constant product composition, at least one of the process parameters of temperature, pressure or steam/hydrocarbon ratio is recorded in the form of measured values at one or several points of at least one of the reactors, where at least one of the process parameters is selectively controlled and influenced such that the composition of the product gas at the outlet of one reactor remains constant throughout the operating period.

Abstract: In the case of a gasification reactor for the production of crude gas, containing CO or H2, by gasification of ash-containing fuel with oxygen-containing gas, at temperatures above the melting temperature of the ash, wherein a reaction chamber formed by a membrane wall through which coolant flows, within a pressure container, is provided, with a narrowing transition channel into a gas cooling chamber, wherein spin-reducing, cooled bulkheads are provided in the transition channel, a solution is to be created, with which a strand formation of the outflowing ash can be achieved, for one thing, and, for another, a further slag drip edge that ensures optimal slag outflow is made available.

Abstract: High-temperature-resistant devitrifying solder glasses that contain 20-45 mol % BaO, 40-60 mol % SiO2, 0-30 mol % ZnO, 0-10 mol % Al2O3, 0-5 mol % BaF2, 0-2 mol % MgO, 0-2 mol % CaO, 0-2 mol % TiO2 and 0-10 mol % B2O3, as well as 0.5-4 mol % M2O3 (M=Y, La or rare earth metals) and/or 0.5-4 mol % ZrO2. The application, of said solder glasses are also disclosed.

Abstract: The invention relates to a method and an installation for producing sulfuric acid. First of all, a product gas flow (5) containing sulfur dioxide is produced. The product gas flow (5) is supplied to a reaction chamber (1). A catalyst (3) is located in the reaction chamber (1). In the presence of the catalyst sulfur dioxide reacts to form sulfur trioxide. In further parts of the installation the resulting sulfur trioxide is converted to sulfuric acid. According to the invention, an oxidizing gas flow (6) is supplied to the reaction chamber (1) alternately with the product gas flow (5).

Abstract: In the case of a gasification reactor for the production of crude gas, containing CO or H2, by gasification of ash-containing fuel with oxygen-containing gas, at temperatures above the melting temperature of the ash, wherein a reaction chamber formed by a membrane wall through which coolant flows, within a pressure container, subsequently a transition region and a quench chamber are provided, with a slag/water bath following in the direction of gravity, a solution is to be created, with which the slag container, in particular, is given an economically advantageous configuration, while simultaneously multiplying the method of functioning.

Abstract: The invention relates to a process for keeping coke oven chambers hot during the stoppage of a waste heat boiler, wherein the coke oven chambers are kept hot during the stoppage after emptying using externally heated burners, as a result of which a flue gas low in pollutants is obtained from said burners, such that the waste heat boilers which, during normal operation, cool the flue gases from the coke oven benches and use said gases to produce steam can be shut off and overhauled, and a flue gas low in pollutants which can be dissipated directly into the atmosphere is obtained by the burner operation. The invention also relates to an apparatus for keeping coke oven chambers hot, said apparatus comprising in particular a coke oven chamber bench, a flue gas collection line, a flue gas chimney, a waste heat boiler, a waste gas collection line and a waste gas purification system, wherein the flue gas chimney and the waste heat boiler can be shut off on the flue gas side and on the waste gas side.

Abstract: With a method for supplying an entrained-flow gasification reactor with carbonaceous fuel for the production of a gas that contains CO and H2 and flue ash under pressure and at a temperature above the melting point of the ash, wherein the resulting gas is passed to further treatment stages, particularly at least one synthesis stage, the yield of the liquid products is supposed to be increased in cost-advantageous and simple manner. This is achieved in that the waste gas that is derived from the subsequent treatment stage and still contains hydrocarbons and/or hydrogen is used for pneumatic conveying of the fuel into the entrained-flow gasification reactor.

Abstract: A method is disclosed for catalytic primary reformation of hydrocarbons with steam at elevated pressure by means of a split tube reactor and a firing chamber. In the split tube system which can use a catalyst material, hydrocarbons to be reformed are converted by water steam to synthesis gas. The split tube system is heated by a plurality of firing facilities between the split tubes which include a plurality of burners arranged in series, the burners generating mainly downwardly directed flames. The relevant firing facilities are supplied with fuel and air, with the air being withdrawn from the relevant feeders. The flue gas thus evolving passes through the firing chamber from top to bottom and enters in the lower area of the firing chamber into horizontally arranged ceramic flue gas tunnels extending in parallel to each other and perpendicular to the vertical split tubes and being allocated to one firing facility each. The flue gas enters through apertures in the lateral walls of the flue gas tunnels.

Abstract: By a method and a device for preventing corrosion on and in the region of a gas inlet nozzle during nitric acid condensation, contact of the condensing gas with the nozzle and with the surroundings of the nozzle are supposed to be minimized. This is achieved in that the gas inlet nozzle has a sleeve on the inside in the transition region to the interior of the condenser, by which sleeve a gas inlet orifice in the form of an annular gap is formed, whereby the annular space is provided with at least one feed opening for secondary air, so that an enveloping flow of secondary air is produced around the entering NO gas.