Forschungszentrum Juelich Gmbh

Forschungszentrum Julich Gmbh

Reinhard Menzer

Martin Bram

Ernst Riensche

Wilhelm Albert Meulenberg

Stefan Baumann

Ludger Blum

Jewgeni Nazarko

Bernd Hohlein

Disclosed is a method for operating an IGCC power plant, wherein the coal gas from a gasifier, comprising CO and hydrogen, is supplied to at least one shift stage, wherein this is converted primarily into COand hydrogen and the coal gas is subjected to at least one gas cleaning step. The coal gas is conducted over a membrane, which at least partially selectively separates the hydrogen from the coal gas. In order to achieve driving potential in the membrane, a flushing gas is used on the permeate side. The hydrogen depleted retentate is fed to a COconditioning process, while the separated hydrogen is fed together with the flushing gas to a gas turbine as fuel gas. The flushing gas used for the membrane is a component of the waste gas produced in the gas turbine after the waste gas has left the waste heat recovery boiler, which is connected downstream of the gas turbine. In the power plant, the gas turbine also functions as a means for providing the flushing gas. The power plant comprises a line from the waste heat recovery boiler connected downstream of the gas turbine to the permeate side of the membrane.

IGCC power plant having flue gas recirculation and flushing gas

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

The invention relates to a method for operating a direct methanol fuel cell. A cooling agent is vaporized in the fuel cell, and a methanol-water mixture is vaporized in a vaporizer, using excess heat from the fuel cell. The vaporized mixture is then conveyed to the anode chamber of the fuel cell.

Method and device for operating a direct methanol fuel cell with gaseous fuel

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Simmerath, Germany

Reinhard Menzer