Abstract: An electrolysis device includes two electrolysis units, which each includes two end plates. The electrolysis units each includes an intermediate plate approximately or exactly in the middle between its end plates and each includes a stack of series-connected electrolysis cells between the intermediate plates and the end plates. Each stack of electrolysis cells includes two electrodes, at which an electrolysis liquid is partially electrolytically split, so that the remaining electrolysis liquid is admixed with a respective electrolysis gas in the area of the two electrodes after the electrolytic splitting. The end plates are electrically connected to one another at least in pairs. The electrolysis device includes a rectifier unit, which provides two potentials (P1, P2) via two outputs, each output being electrically connected to one terminal of the intermediate plate of the one electrolysis unit and to one terminal of the intermediate plate of the other electrolysis unit.

Abstract: One embodiment relates to a methanation method comprising the conversion into methane (CH4) of CO2, in particular CO2 gas, originating from, in particular diverted or obtained from, power plant flue gas from a power plant fired with carbon-containing fuel, in particular carbon-containing gas, and having a connected water/steam circuit, said method being performed in a methanation plant. Some embodiments provide a solution that makes it possible to couple a power plant and a methanation plant to one another in an energetically favorable manner.

Abstract: The invention relates to an industrial production plant (1), which comprises a first production plant (2), which produces a CO2-poor and H2-rich exhaust gas from a carbon-containing feed material and which has an associated first exhaust-gas cleaning device (3) and an associated second exhaust-gas cleaning device (14). The problem addressed by the invention is that of creating a solution by means of which a carbon capture and utilization method can be effectively and efficiently performed.

Abstract: One embodiment relates to a power plant having a large steam generator, which is equipped with hydrocarbon-fired burners and/or with a gas turbine and which has a water/steam circuit connected thereto, and comprising at least one device for generating a CO2-rich gas flow, wherein the electrical power output of the electricity-generating part, of the power plant to the electrical grid is subject to power regulation controlled, at the power grid side. Some embodiments relate to a flexible operating method for the power plant that is fired with hydrocarbon-containing fuel, which operating method permits in particular a rapid adaptation of the power plant output to the power demands from the grid.

Abstract: The invention relates to an industrial production plant (1), which comprises a first production plant (2), which produces a CO2-poor and H2-rich exhaust gas from a carbon-containing feed material and which has an associated first exhaust-gas cleaning device (3) and an associated second exhaust-gas cleaning device (14). The problem addressed by the invention is that of creating a solution by means of which a carbon capture and utilization method can be effectively and efficiently performed.

Abstract: The invention relates to a method for storing and recovering energy, wherein an air liquefaction product (LAIR) is formed during an energy storage period, and a fluid pressure flow (12) is formed during an energy recovery period using at least one part of the air liquefaction product (LAIR) and is expanded for operation in at least one energy recovery device (14, 17). The air liquefaction product (LAIR) is obtained as a liquid medium during the energy storage period by compressing air in an air conditioning device (3), said compression being operated while supplying energy, in particular while supplying a current (9), optionally stored in a cold state, and fed to an evaporator unit (7). The air liquefaction product (LAIR) is expanded for operation as a fluid pressure flow (12) in the at least one energy recovery device (14, 17) during the energy recovery period after a pressure increase.

Abstract: A method and installation for storing and recovering energy, according to which a condensed air product is formed in an energy storage period, and in an energy recovery period, a pressure flow is formed and is expanded to produce energy using at least part of the condensed air product. For the formation of the condensed air product: the compression of air in an air conditioning unit, at least by means of at least one isothermally operated compressor device and the adsorptive cleaning of the air by means of at least one adsorptive cleaning device at a hyperbaric pressure level.

Abstract: One embodiment relates to a power plant having a large steam generator, which is equipped with hydrocarbon-fired burners and/or with a gas turbine and which has a water/steam circuit connected thereto, and comprising at least one device for generating a CO2-rich gas flow, wherein the electrical power output of the electricity-generating part, of the power plant to the electrical grid is subject to power regulation controlled, at the power grid side. Some embodiments relate to a flexible operating method for the power plant that is fired with hydrocarbon-containing fuel, which operating method permits in particular a rapid adaptation of the power plant output to the power demands from the grid.

Abstract: One embodiment relates to a methanation method comprising the conversion into methane (CH4) of CO2, in particular CO2 gas, originating from, in particular diverted or obtained from, power plant flue gas from a power plant fired with carbon-containing fuel, in particular carbon-containing gas, and having a connected water/steam circuit, said method being performed in a methanation plant. Some embodiments provide a solution that makes it possible to couple a power plant and a methanation plant to one another in an energetically favorable manner.

Abstract: In the case of a solar thermal energy generating plant with a first solar array, using water as a heat transfer medium, a water separator, arranged downstream of the first solar array, and a high-pressure turbine, it is intended to achieve the effect of increasing the efficiency of the solar thermal energy generating plant. This is achieved by a first superheater for overheating the steam leaving the water separator being arranged between the water separator and the high-pressure turbine.

Abstract: In the case of a solar thermal energy generating plant with a first solar array, using water as a heat transfer medium, a water separator, arranged downstream of the first solar array, and a high-pressure turbine, it is intended to achieve the effect of increasing the efficiency of the solar thermal energy generating plant. This is achieved by a first superheater for overheating the steam leaving the water separator being arranged between the water separator and the high-pressure turbine.

Abstract: The invention relates to a method for recovering heat by joining a plurality of heat flows of a fossil-fired, in particular carbon-fired, power plant (1), which downstream of the combustion comprises a CO2 scrubbing station (58) for the flue gas by way of chemical absorption and/or desorption and associated CO2 compression (27), which method aims to enable a CO2 scrubbing station for the flue gas, with associated CO2 compression, to be integrated into the total energy heat flow and/or the total heat energy balance of a fossil-fired, in particular carbon-fired, preferably conventional, power plant in a way that is advantageous in terms of heating technology.

Abstract: For a steam generator comprising a combustion chamber fired with a fossil fuel and/or with particulate fuel containing carbon and at least one burner level comprising several burners (1) and/or at least one level comprising nozzles in the form of upper air nozzles and/or side wall nozzles, each having connected feed means (9, 10, 11, 12) and/or feed lines (2, 4, 5, 9a-9d, 10a-10d, 11a-11d, 12a-12d) through which/by means of which gas flows conveying combustion and/or oxidation oxygen can be fed to burners (1) and/or the nozzles (13) and/or the combustion chamber, a solution should be created by means of which undesired oxygen contents in the flue gas can be avoided during oxyfuel operation of the steam generator in the partial-load range.

Abstract: In a method for operating and controlling/regulating a power station comprising a coal-fired steam generator (11), the steam generator (11) of which is rated for the steam parameters achievable by the heat transfer onto the steam mass flow upon coal firing in the steam generator (11) carried out using combustion air, a solution is to be created, which enables the operation of coal-fired power stations rated for air operation utilizing a firing of the fuel carried out according to the oxy-fuel process in the firing chamber of the steam generator of the coal-fired power station.