Forschungszentrum Juelich Gmbh

Forschungszentrum Julich Gmbh

Consejo Superior De Investigaciones Cientificas

Universidad Politècnica De València

Wilhelm Albert Meulenberg

Stefan Baumann

Hans Peter Buchkremer

Detlev Stöver

Helmut Soltner

Ernst Riensche

Detlev Stoever

Jose Manuel Serra Alfaro

Hans-Peter Buchkremer

Reinhard Menzer

Olivier Guillon

Ludger Blum

Jewgeni Nazarko

Mariya E Ivanova

Patrick Tchoua Ngamou

Lambertus Gerardus Johannes De Haart

Peter Batfalsky

Ralf Hansch

Harald Glückler

Maria Balaguer Ramirez

Falk Schulze-Küppers

Mariya Ivanova

Tobias Offermanns

Kai Wilkner

Gerd Mattonet

Sonia ESCOLÁSTICO

Tilmann Schober

José Manuel Serra-Alfaro

Disclosed are a CMS membrane, characterized in that it is obtainable by pyrolysis of a polyimide composed of the monomers 1-(4-aminophenyl)-1,3,3-trimethyl-2H-inden-5-amine and 5-(1,3-dioxo-2-benzofuran-5-carbonyl-2-benzofuran-1,3-dione of the following formulae: preferably by pyrolysis of the polyimide having the CAS number 62929-02-6, and a supported CMS membrane comprising a CMS membrane obtainable from a polyimide by pyrolysis and a porous support, characterized in that a mesoporous intermediate layer is provided between the CMS membrane and the porous support. Further disclosed are a process for preparing the supported membrane, the use of the membranes for separating gas mixtures or liquid mixtures, an apparatus for gas separation or for liquid separation, and the use of the polyimide for preparing a CMS membrane by pyrolysis.

CMS membrane, method for the production thereof and use thereof

A method for generating heat energy in a power plant by burning a carbonaceous fuel in a combustion chamber of the power plant and a system for carrying out the method is described. A combustion chamber is fluidly connected to a membrane chamber that includes a membrane operating at a temperature between 600 and 1000&#xb0; C. The combustion chamber receives a cleaned flue-gas oxygen mixture for combustion from the membrane chamber. Oxygen from heated air passes through the membrane in the membrane chamber to the permeate side of the membrane, where it is mixed with cleaned heated flue gas and the resulting gas mixture is fed to the combustion chamber. Flue gas removed from the combustion chamber are cooled, cleaned and heated as described herein and recirculated to the membrane chamber.

Power station and method for operating the same

Provided is a power plant for generating electrical energy comprising a combustion chamber for producing steam, at least one downstream flue gas purification stage, a separation stage for CO, a recycling circuit for the flue gas, and a high-temperature Omembrane, which is connected upstream of the combustion chamber. The high-temperature Omembrane has an inlet and an outlet on the feed side which are thermally coupled by way of a heat exchanger. On the permeate side, the high-temperature Omembrane has only an outlet which is connected to the combustion chamber and/or the flue gas recycling circuit and a means for cooling and/or compression which is disposed in this outlet. The power plant, in which coal is burned using substantially pure oxygen, and in which the combustion waste gas is purified and partially recirculated to the combustion process, is operated in such a way that the oxygen that is used is obtained by separation from air using a high-temperature Omembrane, wherein the membrane is operated with atmospheric air at a pressure of up to 2 bar on the feed side and a negative pressure of between 0.02 and 0.5 bar is applied on the permeate side.

Power plant that uses a membrane and method for operating the same

A composite membrane for selective gas separation, comprises a layer system having a continuously porous, mechanically stable carrier layer, which has an average pore size in the &#x3bc;m range, further having at least one continuously porous intermediate layer, which is disposed on the carrier layer and has an average pore size in the range of 2 to 200 nm, and further having a gastight functional layer, which is disposed on the intermediate layer and is made of a mixed-conductive material having a maximum layer thickness of 1 &#x3bc;m. The carrier layer comprises a structural ceramic, a metal, or a cermet and has a layer thickness of no more than 1 mm. The intermediate layer is present with a total layer thickness of no more than 100 &#x3bc;m and has an average pore size in the range of 10 to 100 nm. The functional layer comprises a perovskite, a fluorite, or a material having a KNiFstructure, such as LaSrCoFeO(LSCF). The layer thickness of the functional layer is no more than 50 nm, and particularly between 25 and 400 nm. In order to produce this composite membrane, at least one porous intermediate layer is applied onto a continuously porous, mechanically stable carrier layer, which has an average pore size in the &#x3bc;m range, wherein the intermediate layer has an average pore size in the range of 2 to 200 nm. A further gastight, functional layer made of a mixed-conductive material and having a maximum layer thickness of 1 &#x3bc;m is applied onto the intermediate layer.

Oxygen-permeable membrane and method for the production thereof

A system for gas separation has a mechanically stable metallic substrate layer having a pair of opposite faces and formed throughout with open pores. Respective functional layers laminated on each of the faces are composed of TiOor ZrO. These functional layers are formed throughout with pores having an average pore diameter of less than 1 nm.

Device for gas separation and method for producing such a system

The invention relates to a device for electrically contacting electrodes in high-temperature fuel cells. The inventive device is characterized by an interconnector plate with openings and contact elements, which are located therein and which are provided for electrically contacting electrodes. The contact elements protrude from both sides of the interconnector plate at a predetermined height, and the openings are sealed in a gas-tight manner.

Interconnector plate with openings and contact elements sealed in the openings

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AA Vijlen, Netherlands

Wilhelm Albert Meulenberg