Abstract: An apparatus for synthesizing hydrogen chloride from chlorine and hydrogen or from chlorine and hydrocarbons with integrated heat recovery. The combustion chamber and the heat exchanger are arranged in the steam drum of a shell boiler that works according to the waste heat boiler principle.

Abstract: A latent heat storage device is formed with a carrier substrate formed of expanded graphite material. Phase change material is infiltrated in the graphite material. A thin graphite sheet provides for the functional heat conductivity into and out of the carrier substrate. After the phase change material (PCM) is infiltrated in the carrier substrate, a density of the infiltrated carrier substrate exceeds its starting density by a ratio of at least 3:1 or 4:1 or more. The volume dimensions of the infiltrated the carrier substrate remain substantially unchanged. In the alternative, the latent heat storage device may also have a PCM coating layer on a thin carrier substrate, wherein the phase change material is interspersed in a carrier matrix forming the PCM coating layer. The composite device may be very thin.

Abstract: A method produces activated carbon, suitable in particular for use in double-layer condensers. The method includes a) producing a mixture of a preferably pulverulent carbon material, a base and a hydrophilic polymer chemically inert to the base, b) pressing the mixture produced in step a) to form a pressing and c) activating the pressed body produced in step b).

Abstract: A pile layer is formed of a plurality of bundles, which are partially opened up into individual fibers and which contain carbon fibers and foreign substances. The carbon fibers have at least a mass fraction of 70% of the total mass of the pile layer and the foreign substances take up no more than 30%, but not less than 2%. The foreign substances are obtained from a recycling process.

Abstract: A flat textile structure has a reinforcing grid and at least one pile layer which is placed flat on at least one surface of the reinforcing grid. The flat textile structure has a weight per unit area of from 40 to 140 g/m2. The pile layer is formed predominantly of carbon fibers. The carbon fibers in the flat textile structure have a proportion of the weight per unit area of from 60 to 97%, the reinforcing grid has a proportionate weight per unit area of from 2.5 to 12.5 g/m2 and the flat textile structure is strengthened.

Abstract: A heat dissipater has a graphite-containing flat material provided for adjacent positioning against one or more battery cells, as well as an electrical energy storage device with at least one battery cell and a heat dissipater for removing heat from the battery cell. The heat dissipater has a graphite-containing flat material and is disposed on at least one external face of the battery cell. Accordingly, the graphite-containing flat material contains graphite expandate.

Abstract: A method produces a molded part from carbon containing carbon fibers in an amount of less than 20% by weight. The method includes comminuting waste parts or scrap parts formed from a carbon fiber-reinforced synthetic material, a carbon fiber reinforced carbon or a carbon fiber reinforced concrete. A mixture is produced from the comminuted product, a binder such as pitch, a carbon material such as coke and optionally one or more additives, wherein the mixture contains less than 20% by weight of fibers. The mixture is molded into a molded part and the molded part is carbonized. Optionally, the molded carbonized part is impregnated with an impregnating agent. Finally and optionally, the molded carbonized part or the molded part impregnated part is graphitized.

Abstract: A device for tempering a room includes at least one component that forms a thermal accumulator and has a surface oriented towards the room. Tubes that are thermally coupled to the component can be traversed by a heating or cooling medium. The tubes are integrated into a panel that contains expanded graphite or is made of expanded graphite. The panel is in areal thermal contact with the surface of the component that faces towards the room.

Abstract: A device and process of forming a defensive, ceramic based, applique armor for covering and protecting a substrate which may be exposed to attack by projectiles, the applique armor having a flat or curved armor plate formed of ceramic material and having a first surface and a second surface; wherein the ceramic material being formed of silicon carbide with carbon fibers (C/SiC) and the ceramic material has a plurality of holes on at least one of the surfaces; the holes having a diameter smaller than an anticipated bullet or ammunition projectile and the holes being set obliquely relative to at least one surface, whereby the device and process provide holes formed by press molding, boring, drilling, or combinations thereof.

Abstract: A ceiling or wall element for fixing to a ceiling or a wall is provided with a frame that has a base plate which can be fixed to the ceiling and/or to the wall. A heating or cooling register is arranged in or on the frame. A non-woven fabric and a perforated graphite film are disposed between the base plate of the frame and the heating or cooling register.

Abstract: An apparatus for siliconizing carbon-containing workpieces has a chamber with an inlet, a siliconizing device inside, and an outlet. A transporting device has a fixed holding part that extends from the inlet to the siliconizing device and from there to the outlet, and a transporting part with two beams that can move in parallel. The holding and transporting parts have pairs of slots opposite one another with respect to a longitudinal axis L of the transporting device and configured for receiving a rod or the workpiece. The transporting part can be driven to execute a repeated cycle of movements that includes a lifting movement, an advancing movement and a lowering movement, in order to move rods that are resting on the holding part in a cyclical manner along the longitudinal axis L from the inlet to the siliconizing device and from there to the outlet.

Abstract: A heat exchanging element for a heat exchanger is provided with a coating that prevents, or at least reduces, the amount of contaminating materials to be abrade from the heat exchanger and into the heat exchange media. A method for producing a heat exchanging element for a heat exchanger, a heat exchanger per se, and a method for retrofitting an existing heat exchanger, provide for the occurrence of impurities caused by abrasion in one or more heat exchanging media and/or corrosion to be prevented or at least reduced by providing the coating.

Abstract: A sewing thread is formed as a staple fiber thread. The staple fiber thread is formed as a spun fiber thread from a staple fiber material with or from staple fibers. The staple fibers are or contain carbon fiber materials. A certain proportion or all of the staple fibers are wholly or partially coated or impregnated as individual fibers, as groups of individual fibers, or as a whole, with one or a plurality of coating materials and/or impregnation materials respectively.

Abstract: In order to protect heat exchanger pipes (1) in steam boiler systems, special casing elements (2) made of fiber-reinforced ceramic are proposed. The casing elements prevent or reduce the formation of films and corrosion on the heat exchanger pipes and thus enable higher steam parameters of the boiler system and a correspondingly increased thermal efficiency.

Abstract: A method for producing a component and to a component as such made of a ceramic material having a predefined shape. The method includes providing a plurality of sheets made of carbon material), providing an adhesive containing a carbonizable component and joining the plurality of sheets to each other by the adhesive to form a sheet arrangement. The spatial dimensions of which are such that the predefined shape of the component can be generated from the arrangement by material removal. The sheet arrangement is worked by removing carbon material from the sheet arrangement to obtain a preform which is made of carbon material and has the predefined shape of the component to be produced. The perform is siliconized to obtain the component made of ceramic material.

Abstract: A method for producing a ceramic substance includes producing a homogeneous mixture containing carbon fibers having a fiber length distribution of D5=<15 ?m and at least one powdery and carbonizable binder. The homogeneous mixture is compacted under the action of pressure. The compacted homogeneous mixture is thermally treating for carbonizing, or for carbonizing and graphitizing, to obtain a carbon substance. The carbon substance is siliconized to obtain a ceramic substance.

Abstract: A method for operating an arc furnace, an oscillation measurement device for an arc electrode, and a configuration for the arc furnace are described. Using simple measures for operating the arc furnace, it is possible to carry out, in a particularly safe and productive manner, an oscillation measurement on the at least one arc electrode. On the basis of which the operation of the configuration for the arc furnace can be controlled with regard to the mechanical and/or electrical operating parameters.

Abstract: An activated, porous carbon has a specific BET surface area of between 1400 and 1900 m2/g, with at least 80% of all of the pores, and preferably all of the pores, of the carbon having an average diameter of between 0.3 and 0.9 nm. The novel carbon is particularly suitable for use as an electrode in a double-layer capacitor. The carbon is obtained by a process that includes the following steps: a) producing a mixture of a green coke, a base, and a hydrophilic polymer which is chemically inert towards the base, b) pressing the mixture produced in step a), to form a compact, and c) activating the compact produced in step b).

Abstract: A layered composite material which is suitable, in particular, for use in a redox flow battery, contains at least one layer of a textile fabric and at least one graphite-containing molded body which is obtained by a method in which graphite particles are mixed with at least one solid organic additive to form a mixture and the thus obtained mixed is then compressed.

Abstract: A carbon-fiber-based gas diffusion layer (GDL) for use in polymer electrolyte membrane (PEM) fuel cells (FC) having structured hydrophilic properties, wherein materials with hydrophilic properties and selected from the group of metal oxides in an average domain size of 0.5 to 80 ?m are present as hydrophilic wicks in the gas diffusion layer.