Abstract: A thermodynamic machine for the absorption and emission of heat at different temperatures has at least one thermodynamic device with at least one membrane separating a gas phase and a liquid phase provided for transport of heat, wherein the at least one membrane is permeable for at least one component contained in the gas and liquid phases. The at least one membrane is a porous membrane or a solution diffusion membrane or a modification of the porous membrane or a modification of the solution diffusion membrane.

Abstract: The present invention relates to modules comprising hollow fiber or capillary membranes, a mold and embeddings made of potting compounds, which are referred to as “pottings” and which embed the hollow fiber or capillary membranes into a mold in a gas-tight and temperature-stable manner, and to methods for producing such hollow fiber or capillary membrane modules.

Abstract: The present invention relates to a composite system comprising an electrode and a membrane, which can be used as a fuel cell element or an ion-exchange membrane.

Abstract: A thermodynamic machine for the absorption and emission of heat at different temperatures has at least one thermodynamic device with at least one membrane separating a gas phase and a liquid phase provided for transport of heat, wherein the at least one membrane is permeable for at least one component contained in the gas and liquid phases. The at least one membrane is a porous membrane or a solution diffusion membrane or a modification of the porous membrane or a modification of the solution diffusion membrane.

Abstract: A metal solution-diffusion membrane of a macroporous base on which a thin metal membrane layer is formed is disclosed. In the membrane, the base includes a hollow fiber with a metal material containing an intermediate layer being formed between the hollow fiber and the metal membrane layer. The metal solution-diffusion membrane can be made with a very thin metal membrane layer with high permeability and possesses long-term stability as well as a great separation surface/volume ratio. A method for producing a metal solution-diffusion membrane in which the intermediate layer serves to provide nuclei for the subsequent currentless deposition of the metal layer is also disclosed.

Abstract: The invention relates to a method for producing a hollow fiber membrane module or a capillary membrane module as well as a device having such a module. In the method, hollow fibers or capillaries are placed, in an unsintered state, in a mold structured for receiving the hollow fibers or capillaries and are sintered once inside the mold. Subsequently or simultaneously, the fibers are potted in the mold. The method permits producing hollow fiber membrane modules or capillary membrane modules in a simple manner with little risk of breakage.

Abstract: The present invention relates to a metal solution-diffusion membrane of a macroporous base on which a thin metal membrane layer (3) is formed. In the present membrane, the base comprises a hollow fiber (1) with a metal material containing an intermediate layer (2) being formed between the hollow fiber (1) and the metal membrane layer (3). The invention further relates to a method for producing such a metal solution-diffusion membrane in which the intermediate layer (2) serves to provide nuclei for the subsequent currentless deposition of the metal layer (3). The present metal solution-diffusion membrane can be realized with a very thin metal membrane layer with high permeability and possesses great long-term stability as well as a great separation surface/volume ratio.

Abstract: The present invention relates to a reactor module constructed of hollow fibers and cells as well as to reactors comprising this reactor module.

Abstract: The present invention relates to a method for producing a hollow fiber membrane module or a capillary membrane module as well as a device having such a module. In the method, hollow fibers or capillaries (3) are placed, in an unsintered state, in a mold (1) structured for receiving the hollow fibers or capillaries (3) and are sintered once inside the mold (1). Subsequently or simultaneously, the fibers are potted in the mold.

Abstract: The present invention relates to a reactor module constructed of hollow fibers and cells as well as to reactors comprising this reactor module.

Abstract: The invention at hand relates to an improved wastewater treatment plant consisting of a reactor and a filter device, such as for gaining drinking water or wastewater treatment.

Abstract: The invention relates to the area of ceramics and to a ceramic flat membrane which is configured as a multi-channel element. The aim of the invention is to provide a ceramic flat membrane with a larger effective membrane surface. To this end, the inventive ceramic flat membrane consists of at least two layers of at least two sub-layers of different porosity, at least one of these layers having a non-planar geometry. The two layers are joined to each other with at least spot joins and integral joins. The invention also provides a method for producing a flat membrane of this type. According to this method, suspensions are produced from at least two ceramic powders of different particle size. Two sub-layers are formed from the suspensions, then dried and joined to form one layer.

Abstract: The present invention relates to an air humidifier and to a method for humidifying air, the use of special devices enabling air to be humidified with sterile water. A large contact area between water and air is combined with low losses of flow pressure. A membrane contactor having at least one tube membrane embedded in a hydrophilic, porous body comprises the air humidifier. The present invention enables use of coarse filters to ensure that the water is dispersed over a large surface area.

Abstract: An apparatus for the high-frequency artificial respiration of living animals or human beings has a flexible endotracheal tube for introduction into the trachea thereof. The flexible endotracheal tube has an outlet end, a valve at the outlet end and control and air supplies along the endotracheal tube to the valve. The control operates the valve to produce steep-flanked respiratory-air pulses. The valve can serve simultaneously for removing used air through a conventional endotracheal tube as a sleeve about the other endotracheal tube.