Abstract: A method for coking coals having high driving pressure properties in a “non-recovery” or “heat-recovery” coking oven, wherein a coking oven battery which is composed of coking oven chambers arranged side by side is used for cyclic coking of coal, and wherein an amount of coal preheated to a high temperature is admitted into the coking chamber that is to be filled at such a level that the driving pressure resulting from the coking can escape over the coke cake into the gas chamber, in such a manner that the coking oven chamber wall surrounding the coking oven chamber is relieved by the driving pressure resulting from the coking. Also disclosed is a device with which this method can be carried out.

Abstract: A cooling shield is to be made available, in particular within the pressure container, with conical regions for the exit of gas or slag, in a gasification reactor (1) for producing crude gas containing CO or H2, having a pressure container (2) and a reaction chamber (4) formed by a membrane wall (3) of cooling pipes, wherein an annular space is formed between the inner wall of the pressure container (2) and the membrane wall (3), wherein elements such as burners (17) or the like are provided, which elements horizontally pass through the pressure container wall in the membrane wall substantially on the same plane (18), wherein the suspension or connection between the cooling shield and pressure container (load removal) is optimized, while avoiding difference expansions. This is achieved in that, for removal of the load on the membrane wall (3), direct or indirect support takes place at the cooling inlet lines (5) or mixture outlet lines (14).

Abstract: A process for the removal of components to be separated from technical gases by way of an absorption and desorption processes using liquid absorbents, at least part of the laden solution leaving the absorption device being branched off before being heated and fed to the top of the heat transfer section. This laden part-stream being heated by the steam rising from the bottom part of the desorption device via heat exchange in the heat transfer section. The residual stream of cold, laden solution leaving the absorption device being pre-heated via heat exchange with the hot, regenerated solution leaving the desorption device, with the heat exchange being configured such that the total heat exchange surface required for the absorption and desorption process is reduced.

Abstract: A water distribution system in a gasification reactor for carrying out a slag-forming entrained flow process is disclosed having a water screen as a water distribution system with a concentric annular distributor used in conjunction with an axially symmetrical deflecting surface having a concavely curved cross-section. The annular distributor has a water intake and the annular distributor has openings for water to be discharged in jets directed onto the inside of the concavely curved deflecting surface. The water leaving the deflecting surface is conducted downward into the interior of the reactor.

Abstract: The present invention concerns an integrated process for the production of liquid hydrocarbons starting from a feed containing at least one fraction of biomass and optionally at least one fraction of another feed, said process comprising at least one pre-treatment step, a gasification step, a step for conditioning synthesis gas, a water scrubbing step, a step for eliminating acid gases, a final purification step, and a catalytic Fischer-Tropsch synthesis reaction step.

Abstract: The invention relates to a method and apparatus for reducing nitrosamines, formed in removal of CO2 from off-gases by means of an aqueous amine solution. A substream of the aqueous amine solution, loaded with nitrosamines, is branched off from a washing fluid circulation and is concentrated by evaporating water and low-boiling constituents. The concentrated amine solution is retained at the boiling point in a unit in which a liquid phase and a vapor phase are in contact to establish a vapor/fluid equilibrium between the phases. The vapor phase is irradiated with UV light, which decomposes nitrosamines entering the vapor phase. Following decomposition of nitrosamines, the concentrated amine solution is recycled to the washing fluid circulation for further use in the scrubber.

Abstract: With a method for discharging slag from a water bath of a reactor for synthesis gas production, whereby the slag is brought to a lower pressure level by means of a transfer container, a solution is supposed to be created, with which the components connected with transferring the slag out are subject to a low temperature, whereby immediate slag transfer without water exchange is supposed to be made possible, with a minimal required cooling power. This is accomplished in that a cooling water stream is passed to the slag stream in the outlet region of the slag from the water bath of the gas generator or the pressurized container that surrounds it, in a region having a greater cross-section than the cross-section of the entry connector of another system part, such as, for example, the transfer container, in such a manner that temperature stratification in the outlet region is made possible.

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 funnel-shaped slag collection container is provided in the slag/water bath, which container is equipped, in the inflow direction of the slag, with a second funnel-shaped insert as a precipitation cone, the funnel wall of which forms a circumferential ring gap to the slag collection container, and the free border edge of which is positioned above the free border edge of the slag collection container.

Abstract: A process for the recovery of a pure aromatics-containing product is disclosed. This product is obtained by extractive distillation of a gasoline rich in aromatics, in which olefins, diolefins and polyolefins are separated, and this extractive distillation is followed by a hydrogenation of the recovered aromatics-rich, olefin-lean product stream, in which the alkylated aromatics, especially toluene and xylene, are dealkylated and the paraffinic dealkylation products further converted into methane so that a significant portion of hydrogen can be saved by carrying out the hydrogenation subsequent to the extractive distillation, as the aromatics mixture is then free of olefins and no hydrogen is required for an olefin hydrogenation, with extractive distillation and recovery of the extracting solvent taking place in one column. An apparatus for carrying out the process described is also disclosed.

Abstract: A process for keeping coke oven chambers hot during the stoppage of a waste heat boiler. The coke oven chambers are kept hot after emptying using externally heated burners, in which a flue gas low in pollutants is obtained from the burners. The waste heat boilers which, during normal operation, cool the flue gases 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. Also disclosed is an apparatus for keeping coke oven chambers hot, the apparatus has 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: A gasification reactor for producing 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, has 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, and spin-reducing, cooled bulkheads in the transition channel. The, wall that carries the bulkheads makes a transition, below the bulkheads, into a cylinder wall that is reduced in diameter, by way of a step having a corrugated surface. The cylinder wall, which is reduced in diameter, is enclosed by a further cylindrical wall, which is enlarged in diameter, which wall forms a second slag drip edge at its end, in the direction of gravity. The further cylindrical wall is disposed to be adjustable in its vertical position, with reference to the first drip edge.

Abstract: A method for reducing the coking time in the oven area near the door or end wall and for improving coke quality and situation of emissions by compensating for radiation losses through coke oven chamber doors and end walls is described. This compensation is accomplished by varying the height of the coal cake in the environment of the frontal coke oven chamber doors. The variation is achieved both by increasing or decreasing the coal cake over part of the length or over the entire length of the coke oven chamber door. The reduction in the height of the coal cake can be generated by omission of coal or coal compacts, the increase in height can be accomplished by stacking of coal and pressing or adding of coal compacts, with it also being envisaged to omit the pressing cycle so as to obtain a recess with a lower coal cake density which also has less heat radiation.

Abstract: The invention relates to a method for simultaneously producing iron and a crude syngas containing CO and H2 by means of a blast furnace that is charged with iron ore and carbon-containing reducing agents. The amount of carbon-containing reducing agents fed to the blast furnace is greater than the amount of fuel required for producing the iron. Technically pure oxygen is fed into the blast furnace for the blast furnace process and for producing the crude syngas. In addition, CO2 and/or steam are fed to the blast furnace in order to control the ratio between CO and H2 in the crude syngas discharged from the blast furnace as top gas and/or moderate the temperature at which the oxygen is injected.

Abstract: A process for removing, isolating and purifying dicarboxylic acid from fermentation broths, which includes the following steps: 1) removal of the biomass and any solids present from the fermentation broth in two successive stages, 2) removal of the dicarboxylic acid solution from the biomass-free fermentation broth by simulated moving bed (SMB) chromatography, 3) fine purification of the dicarboxylic acid solution, 4) multistage evaporative concentration and crystallization, and 5) separation and drying of the crystals.

Abstract: Improvement in carbonization in a carbonization furnace and simultaneous reduction in NOx emissions is achieved by recirculation of waste gas from a coking oven back to the oven chamber, the downcomers, or the sole channel system.

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 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 device for compensating deviations from a coaxial arrangement of components of a regulating organ, said regulating arrangement being comprised of a regulating organ, a crown pipe, and an immersion cup which serve for controlling the gas pressure of a coke oven chamber, with the regulating arrangement being comprised of an immersion cup with a water immersion that seals the gas space of a coke oven chamber versus the gas collecting main and/or plant units downstream, and wherein the height of the water level of the water immersion represents a regulating means to control the gas pressure, and wherein said regulating arrangement is furthermore comprised of an immersion pipe that configures a specially shaped crown pipe at its end submerging into the water of the immersion cup, and that is comprised of a regulating organ to regulate the water level.

Abstract: A method for producing individual compacts made of coke and suitable for coke oven chambers by dividing a coal cake in a non-mechanical manner, wherein the coal cake is produced by a compression method according to the prior art and the coal cake is divided by non-mechanical, energy-supplying media, and the non-mechanical media supplying shearing energy are, for example, a laser beam, a high-pressure water jet, an abrasive-solid jet, an ultrasonic beam, a compressed-air jet, or a gas jet. By using the method, coal compacts can be produced from coal cakes without forming dust, without wearing out cutting tools, and with high precision.

Abstract: A method for removing acid gases from a fluid flow using an absorbent including an aqueous solution with at least two different amines. An amine in a proportion of greater than 50 wt. % of the total amine amount in the aqueous solution is the first amine component in the aqueous solution, and a sterically hindered amine in a proportion of less than 50 wt. % is the second amine component in the aqueous solution. The fluid flow is brought into contact with the absorbent at a partial pressure of <200 mbar.

Abstract: A method for producing process vapor and boiler feed steam in a heatable reforming reactor for producing synthesis gas. The sensible heat of a synthesis gas produced from hydrocarbons and steam can be used so that two types of vapor are produced during the heating and evaporation of boiler feed water and process condensate. The method also includes a conversion of the carbon monoxide contained in the synthesis gas. The method includes an optional heating of the boiler feed water using the flue gas from the heating of the reforming reactor. The sensible heat of the synthesis gas and of the flue gas originating from the heating can be used more efficiently. The disadvantages from the flue gas heating, which are caused by the fluctuating heat supply in the flue gas duct, are avoided. A system for practicing the method is also disclosed.