Abstract: An apparatus is provided for drying a gas by gradually releasing and condensing the moisture in various chambers of a column, different pressures and different temperatures thus being present in the chambers of the column. The gas to be dried is first fed into the bottom chamber, where the largest amount of the water contained in the gas is condensed, and the gas is then discharged from the bottom chamber via a nozzle. Subsequently the gas is cooled and fed into at least one more chamber located above the first chamber, where further moisture is condensed before the resulting condensate is fed via a pipe—preferably shaped like a siphon—into the bottom reservoir to prevent the gas from flowing from the chamber below into the chamber above. A process which enables a gas to be dried is also described.

Abstract: The invention relates to a method and a device for the metered removal of a fine to coarse-grained solid matter or a solid matter mixture from a storage container, comprising a device for forming a fluidized bed in the discharge region or in a metering chamber of the metering container, wherein fluidization that is as optimal as possible is to be created in the lower region of such a receiving or metering container while avoiding any additional systems, mechanical elements, or extensive installations. This is achieved according to the method in that a gas is additionally introduced in the region of the metering chamber bottom for forming a fluidized bed that loosens the solid matter, and a gas is introduced via swirl nozzles for bringing about the rotation of the fluidized bed.

Abstract: The invention relates to a method for extracting styrene, having a polymerization quality, from pyrolysis benzol fractions containing styrene by means of extractive distillation. The pyrolysis benzol fraction is separated in a separating wall column in a C8-core fraction, a C7 fraction and a C9+-fraction, the obtained C8-core fraction is subjected to selective hydrogenation of the phenylacetylene C8H6 which it contains. Subsequently, the obtained C8-fraction undergoes extractive-distillative separation in a styrene fraction and a fraction which is low in styrene.

Abstract: Disclosed is a device and a method for feeding primary combustion air for the combustion of coke oven gas into a coking chamber of a coke oven of the non-recovery or heat recovery type, the coke oven is provided with openings in the oven chamber through which the oven chamber can be charged with primary air, and heating flues in the oven chamber sole with openings through which the heating flues can be charged with secondary air, and downcomer-channels which allow for guiding partially burned gas for combustion with secondary air from the oven chamber into the heating flues, wherein in the oven wall above the door or in the upper door area there are one or more non-controlled openings comprised of a heat-proof material through which part of the primary air can be guided, and in the top area of the oven there are further controllable air feeder ducts conducting primary air through the oven top.

Abstract: A method of starting up an autothermal reactor for the production of synthesis gas by reforming of hydrocarbon-containing feed gases in a reaction chamber in which oxidation reactions and reforming reactions are carried out, by feeding a hydrocarbon containing feed gas, steam and an oxidant.

Abstract: An H2- and CO-containing synthesis gas is made by separating coke-oven gas from a coke-oven process into hydrogen and a residual gas stream containing hydrocarbons and obtaining a CO-rich synthesis-gas stream from a top gas of a blast furnace. The hydrogen separated from the coke-oven gas is fed into the CO-rich synthesis gas stream obtained from the top gas of a blast furnace to make the synthesis gas, and the hydrocarbon-containing residual gas stream is fed into the blast furnace as feedstock.

Abstract: A process for the separation of the aromatic compounds benzene, toluene and xylene from an aromatics-containing reformate gasoline and pyrolysis gasoline or a coke-oven light oil or an aromatics-containing refinery stream, in which the aromatics are separated by an extractive distillation uses a novel solvent combination made up of the compounds n,n?-diformyl piperazine or 2,2-bis-(cyanoethyl)ether in a combination with n-formyl morpholine as a second solvent for extractive distillation so that the solvent combination obtained shows a higher selectivity with regard to the aromatics to be extracted so that a lower solvent load is required. The aromatics-containing feed mixture is first submitted to a pre-distillation so that the obtained fraction has a narrow boiling point range. This fraction is then submitted to an extractive distillation in a first column, in which an aromatics-lean head product of predominantly paraffinic hydrocarbons is obtained as well as an aromatics-enriched bottom product.

Abstract: A method for production of coke chamber-compatible coal briquettes. Horizontally feeding coal into a pressing mold 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 mold 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 mold 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 mold 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: The invention relates to a process and apparatus for preparing nitric acid by catalytic oxidation of NH3 by means of oxygen and subsequent reaction of the NOx formed with an absorption medium in an absorption tower, which comprises a catalyst bed for N2O decomposition arranged in the process gas downstream of the catalytic NH3 oxidation and upstream of the absorption tower in the flow direction and a catalyst bed for NOx reduction and effecting a further decrease in the amount of N2O arranged in the tailgas downstream of the absorption tower in the flow direction, wherein the amount of N2O removed in the catalyst bed for N2O removal arranged in the process gas is not more than that which results in an N2O content of >100 ppmv and a molar N2O/NOx ratio of >0.

Abstract: A curable compound of a formulation, a method for producing a polymer material from the curable compound, the resulting polymer material, and agents produced from the polymer material.

Abstract: An apparatus for charging chambers of a coke oven has a horizontal screw conveyor with a downwardly open outlet and a telescopic charging chute below the outlet having an upper intake funnel and a telescopic lower part alignable with the charging ports by horizontal and longitudinal displacement. A support frame carries the intake funnel and a lifter for vertically displacing the telescopic lower part. A traveling frame in which the support frame moves transversely can also move longitudinally on rails. A seal on a top side of the support frame surrounds the intake funnel of the telescopic charging chute, works together with a horizontal lower flange surface on the outlet of the horizontal screw conveyor, and permits horizontal movement of the intake funnel relative to the outlet of the horizontal screw conveyor.

Abstract: An adjustable chargehole closure for adjusting the closure cover of a charging hole in a coking oven chamber. The adjustable chargehole closure has as an inner frame for a closure cover, and the frame can be rotated both with respect to the closure cover and with respect to an outer frame, designed asymmetrically with respect to a vertical plane, so that the closure cover is displaced along a longitudinal axis when the inner frame is rotated in the horizontal plane. The position of the charging hole opening and the closure cover present therein on the ceiling of a coking oven chamber can thereby be changed without requiring construction measures on the ceiling of a coking oven chamber. The capability is in particular advantageous in order to match the position of the charging hole cover to the precise charging position of the charging machine.

Abstract: The invention relates to the use of a liquid, containing 0.1 to 100% of an amine or several amines of formula H2N—CH2(CHR2)x—(OCH2(CHR3)y)z—OR1, where R1=C1 to C6 alkyl, R2=H or CH3, R3=H or CH3, x=0 to 3, y=0 to 3, z=0 to 10 and 0 to 99.9% of any further solvent including piperazine and/or water for separating acid gas components from technical gases.

Abstract: A method and apparatus for processing a sour gas rich in carbon dioxide in a Claus process, so sulfur compounds are removed by a selective solvent in a gas scrubbing process. Sulfur components and carbon dioxide, are separated into at least two sour gas fractions, wherein at least one sour gas fraction having a higher content of sulfur components is obtained, wherein the fraction having the highest hydrogen sulfide content is introduced in the thermal reaction stage of the Claus furnace with a gas containing oxygen by means of a burner. The sulfur is converted to sulfur dioxide in the thermal reaction stage of the Claus furnace and exhaust gases are discharged into the closed Claus reaction chamber behind the burner. The remaining sour gas fractions stripped of sulfur components are fed to the Claus reaction chamber and are mixed with the combustion gases leaving the burner.

Abstract: A method and a device for breaking up a fresh and hot coke charge in a receiving trough having mobile plate segments, the coke charge being conveyed to a quenching tower in the receiving trough of a flatbed transport car in which the coke charge is cooled down to ambient temperatures by mobile plate segments so that the coke structure is broken up and crevice-type cavities are formed in the compacted coke charge. These crevice-type cavities then allow an increased amount of water to flow into the interior of the coke charge during the subsequent quenching step, resulting in a high profitability of the method, a higher coke quality and a reduced burden on the environment due to reduced quenching times and lower water consumption. A device for carrying out the method is also disclosed.

Abstract: A coking oven has a battery of longitudinally extending and transversely spaced coking chambers each provided with a plurality of downwardly open and longitudinally spaced filling holes. Coal is charged into the chambers through the respective filling holes. A respective longitudinally movable leveling rod in each of the chambers can level coal charged by the filling equipment into the chambers. Sensors provided on the leveling rods scan from above transversely and longitudinally spaced points on a surface of the coal charged through the holes into the respective chambers. A controller connected to the sensors records a respective measurement corresponding to a vertical position of the surface at each the points and determines from the measurements thereof a three-dimensional filling-level profile of the surface of the charged coal for controlling operation of the filling equipment and filling of the chambers with the coal.

Abstract: A process for workup of an industrial carbon dioxide-rich gas to be freed of sulfur components, in which an industrial gas to be freed of sulfur components is purified by a gas scrubbing, and the laden solvent is freed of carbon dioxide and hydrogen sulfide by a regeneration to obtain at least one acid gas fraction having a relatively high content of sulfur components, and the fraction with the highest hydrogen sulfide (H2S) content is supplied to a Claus plant with downstream Claus process gas hydrogenation, and at least one carbon dioxide-laden, low-hydrogen sulfide acid gas fraction from the regeneration device, which has a reduced sulfur content compared to the fraction with the highest hydrogen sulfide (H2S) content, is combined with the hydrogenated Claus process gas to give a combined process gas stream, which is supplied to further processing or to recycling into the process.

Abstract: The invention relates to a device for producing a crude gas containing CO or H2 by gasification of an ash-containing fuel with oxygen-containing gas at temperatures above the fusion temperature of the ash in a gasification reactor and with a connected gas cooling chamber and a tapered connecting channel running from one chamber to the other. The aim of the invention is avoiding known problems and reducing the amount of fly ash and the amount of ungasified fuel, wherein a weak eddy is achieved in the inlet to the subsequent apparatuses in order to avoid deposits there with a very compact device, wherein the risk of solidification of the slag in the outlet is also avoided. The aim is achieved, wherein in the tapered connection channel (5) eddy reducing or eliminating wall surfaces (6) running over only a part of the cross-section of the connection channel are provided.

Abstract: A strain-free stationary furnace door actuator for a coke furnace battery of the “non-recovery” or “heat-recovery” type, by way of which vertical opening of the coke furnace chamber doors is possible without the use of a coke furnace operating machine, wherein the deviations of the tension elements of the furnace door actuator from the intended arrangements, which result from strain of the transmitting devices, and undesired increases in tension force, which result from differences in the adhesion forces of the coke furnace chamber doors during closure, are avoided by the use of low-strain transmitting devices and tension elements. A method for the strain-free, stationary actuation of the door of a coke furnace battery of the “heat-recovery” type is also disclosed. The method uses rigid tension elements and low-strain transmitting devices for automatically opening and closing coke furnace chamber doors.

Abstract: With a method for utilization of the reaction heat that occurs in the production of 1,2-dichloroethane from ethylene, by reaction with oxygen and hydrochloride (oxychlorination), in a fluidized bed reactor, with dissipation of this reaction heat through cooling pipe bundles situated within the reactor, positioned in the fluidized bed, utilization of the heat is supposed to be improved, while simultaneously reducing the size of the corresponding system elements. This is achieved in that part of the reaction heat is dissipated by heating boiler feed water, whereby the heated boiler feed water is used to heat heat sinks in the production process.