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 cover arrangement of a hand-held power tool has a cover having at least one fastening element for connecting the cover to an additional component of the power tool. The cover has a wall component having a shape-elastic yielding support forming a monolithic part of the cover. The at least one fastening element is arranged on the support.

Abstract: The product gas from a dehydrogenation reaction is treated by a downstream gas scrub followed by depressurization in a high-pressure flash vessel equipped with mass transfer elements, wherein a fuel gas flows upwardly through the mass transfer elements in the high-pressure flash vessel countercurrent to depressurized solvent so that absorbed hydrocarbons are taken up by the fuel gas. The fuel gas is the heating gas for heating the dehydrogenation reactor and is, for example, natural gas. To increase efficiency, the hydrocarbon stream which has been separated from the acidic gas can be recirculated to the process gas path upstream of the gas scrub.

Abstract: A handheld work apparatus includes a drive motor (28) to drive a tool and at least one handle (3) as well as at least one anti-vibration element (9) that includes a coil spring (10). The coil spring (10) is operatively connected to the handle (3) at one end and with the drive motor (28) at the other end. The anti-vibration element has a tear-off guard (29) which extends through the anti-vibration element (9). A centering element (21) is arranged on the tear-off guard (29) to avoid, in a simple manner, that the tear-off guard moves radially outwards.

Abstract: The invention relates to a process using a solvent combination for the gas scrubbing of industrial gases in order to separate acid gases, particularly including carbon dioxide and hydrogen sulphide. The inventive solvent combination consists of a solution of amines in water, said solution containing ammonia for improving the absorption of CO2. The group of primary and secondary amines includes all types of amines with one or two substituents. Particularly suitable as constituent of the inventive solvent combination is piperazine and piperazine derivatives.

Abstract: The invention relates to a method for removing hydrogen sulphide and other acidic gas components from pressurized technical gases by means of a physical detergent and for obtaining sulphur from hydrogen sulphide by using a Claus system. The hydrogen sulphide and the other acidic gas components are removed in an absorbent manner from the physical detergent, the physical detergent undergoes multi-step regeneration, said multi-step regeneration comprising at least one device for CO enrichment, a device for H2S enrichment, a device for CO2 stripping and a device for thermal regeneration. The various regeneration steps consist of various pressure steps and have a lower pressure than that of the absorption. A hydrogen sulphide rich Claus gas is withdrawn from one of the regeneration steps and is guided to a Claus system where sulphur is produced. The residual gas exiting from the Claus system is hydrated and is condensed under pressure, corresponding to one of the regeneration steps.

Abstract: The invention relates to a desulfurization process, wherein a gas mixture is subjected to a separation process to separate the acidic components of the gas, an acid gas containing carbon dioxide and sulfur compounds, in particular hydrogen sulfide, being formed in this process, the acid gas being sent to a Claus plant for separation of elemental sulfur, and the residual gas leaving the Claus plant being subjected to a further separation, in which the water formed in the Claus process is at least partially removed, only technically pure oxygen being supplied as the oxygen-containing reaction gas to the Claus plant, and carbon dioxide in a purity which allows direct sequestration or industrial utilization being removed downstream from the Claus plant.

Abstract: An exhaust-gas muffler (1) has a housing (2) through which at least one sleeve (11) projects. At one end, the sleeve (11) has an attachment opening (10) and at the opposite-lying end has an access opening (14). To avoid a contamination of the sleeve (11) during operation, a plug (15, 25, 35, 40, 45, 55) of a pressed metal wire is arranged in the access opening (14).

Abstract: The invention relates to a method and a system for operating a Fischer-Tropsch synthesis, wherein a feed gas comprising CO and H2 from coal gasification (1) is desulfurized and subsequently fed into a Fischer-Tropsch synthesis as an input gas, wherein hydrocarbons are formed from carbonic oxides and hydrogen by catalytic reactions. The hydrocarbons are separated as liquid products (4), and a gas flow comprising CO and CO2 exiting the Fischer-Tropsch synthesis unit (3) is compressed and fed into a conversion stage, wherein CO and steam are transformed into H2 and CO2. In the method according to the invention, the gas exiting the conversion stage is fed back into the Fischer-Tropsch synthesis unit as a gas rich in H2, together with the desulfurized input gas, after the gas is prepared in that CO2 and/or further components other than H2 are removed.

Abstract: Process for removing acid gases from a gas stream, in particular from a natural gas stream, synthesis gas stream or the like, wherein the acid gases are absorbed from the gas stream by at least one absorbent. The absorbent used is a mixture of a physical scrubbing medium, a chemical scrubbing medium and water. The absorbent comprises more than 60% by weight of the physical scrubbing medium, wherein the physical scrubbing medium used is a morpholine derivative and a chemical scrubbing medium based on at least one aliphatic amine compound is used.

Abstract: A work apparatus has at least one handle (12) and a drive motor (3). The handle (12) is connected to said drive motor (3) via at least one anti-vibration element (16, 17, 18, 19, 20). The anti-vibration element (18, 19) is held on a first housing part and coacts with a second housing part. To achieve good damping, the anti-vibration element (19) includes a damping section (25) having an annularly-shaped wall (35) which expands in the direction of the second housing part.

Abstract: A housing cover arrangement of a hand-held power tool has a cover having a cover edge and a lateral surface delimited by the cover edge. At least one spring clip is provided that removably connects the cover to a part of the power tool. The at least one spring clip is disposed, when securing the cover to the part, on the lateral surface in the area of the cover edge and is oriented in a clamping direction that extends transversely to the cover edge. At least two supports are disposed along the cover edge and act in the clamping direction. The at least one spring clip is arranged between the at least two supports.

Abstract: A process and apparatus for the separation of a feed mixture into higher-boiling and lower boiling fractions in a continuously operated distillation apparatus uses at least one inlet pipe for feeding feed mixtures, an outlet for the lower-boiling fraction, an outlet for the higher-boiling fraction and a heating device. The distillation apparatus includes at least two condensation stages, each of a different temperature level, the condensation stages upstream in direction of the vapour flow having a higher temperature level than the downstream stages. Separation-effective internals are installed between the condensation stages, partial condensation taking place in the condensation stages, partial amounts that have not condensed in these stages being fed to downstream separation-effective internals or condensation stages of lower temperature level and partial amounts that have condensed are passed via separation-effective internals in direction of the outlet means for the higher-boiling fraction.

Abstract: The invention relates to a method for recovering absorbed hydrocarbon components while absorbing acid gases from technical gases, as for example a natural gas, by means of physically active absorption agents, wherein the inventive method consists in increasing the pressure of a loaded absorption agent extracted from an adsorption device, in adding said loaded absorption agent to the top of a rectification column which consist of a lower feeding stove and of one or several lateral stoves operating at a pressure slightly greater than the absorption column pressure, in adjusting an equilibrium is said rectification column in such a way that the acid gas concentration in the absorbent agent increases in the direction away from the bottom of the column and the hydrocarbon concentration decreases in said direction, in extracting a heated hydrocarbon-poor and acid gas component-rich absorption agent from the bottom of the column and in transferring said agent to an acid gas desorption device, in extracting a hydroca

Abstract: A pressurized gaseous mixture acidic gas and a useful gas is directly in a first absorption column with a physically acting absorption agent. Then the absorption agent loaded with the acid gas and useful gas is subdivided into first and second streams. The first stream is fed directly to a recycle flash container and there decompressed to reclaim the useful gas, extract the acidic gas from the absorption agent, and form a recycled gas containing the useful gas and acidic gas. The second stream is through a second absorption column to the recycle flash container. Some of the recycled gas from the recycle flash container is compressed and fed through the second absorption column so as to therein directly contact the second stream, and then the recycle gas that has passed through the second absorption column and contacted the second stream is returned to the gaseous mixture.

Abstract: The invention relates to a method for producing unsaturated hydrocarbons. According to said method, in a first step, a hydrocarbon, especially a mixture which contains alkanes, essentially no water, and can contain water vapour, is continuously guided through a first catalyst bed provided with standard dehydration conditions. Liquid water, water vapour and a gas containing oxygen are then added to the reaction mixture obtained in the first step and, in a second step, the reaction mixture obtained is then continuously guided through another catalyst bed for oxidising hydrogen and for further dehydrating hydrocarbons. The first catalyst bed can be heated and the heating in the first step is then preferably regulated in such a way that an essentially isothermic operating mode is created.

Abstract: A method for displacing acid gas constituents from natural gas to acid gas removal installations equipped with Claus installations with free capacities utilizes a portion of the acid gas which is removed from a first flow of natural gas containing acid gas. The acid gas removed from the first flow of natural gas is fed to at least one other acid gas removal installation, whereby this feeding results in the acid gas removed from the first flow of natural gas being mixed with at least one second flow of natural gas with which it is transported to at least one other acid gas removal installation.

Abstract: A process for the removal of sour gas from pressurized natural gas which is polluted by sulphur compounds and other sour gas compounds includes initially feeding natural gas into a sour gas absorption unit, in which the sulphur components and any other components are absorbed by a physically acting solution yielding a sour gas rich absorbent. The absorbant is heated and fed into a high-pressure flash unit, in which the desorbed sour-gas is separated yielding a sour gas poor absorbent. The desorbed sour gas is cooled and the vaporized absorbent is condensed out of the sour gas stream. The sour-gas poor absorbent from the high-pressure flash unit is freed from residual sour gas in a gas stripping unit by stripping gas. The absorbent obtained in the sour gas unit is cooled and recycled permitting the desorbed sour gas to be condensed by cooling water or cooling air.

Abstract: The invention relates to a method for depleting hydrogen sulphide in natural gas from the exploitation of crude oil/natural gas mixtures containing acid gas, during which the pressure of highly pressurized crude oil/natural gas mixture is firstly reduced to a pressure of 70 to 130 bar, preferably 90 bar, the outgassing crude gas is separated from the crude oil and crude gas is cooled, whereby the liquid phase condensing during the cooling of the crude gas is removed, the outgassed crude gas is, after cooling and without further measures of reducing pressure, subjected to a gas scrubbing, which absorbs a large portion of the H2S contained in the crude gas by means of a physically acting solvent whereby cleaning the crude gas. The loaded solvent is led into at least one pressure reducing stage, and the heat dissipated during the cooling of the crude gas is fed to the loaded solvent.

Abstract: An exhaust-gas muffler (1) has a housing (2) through which at least one sleeve (11) projects. At one end, the sleeve (11) has an attachment opening (10) and at the opposite-lying end has an access opening (14). To avoid a contamination of the sleeve (11) during operation, a plug (15, 25, 35, 40, 45, 55) of a pressed metal wire is arranged in the access opening (14).