Abstract: A power-to-X system for the utilization of off-gases, includes an electrolyzer for generating hydrogen H2 and oxygen O2, a unit, connected to the electrolyzer, for processing the hydrogen H2, for removing any remaining water H2O and oxygen O2 from the generated stream of hydrogen H2, a compressor, connected to the unit for processing the hydrogen H2, for compressing the hydrogen H2, and a chemical reactor, connected to the compressor, for producing a synthesis gas consisting of hydrogen H2 and carbon dioxide CO2 that can be added. An oxy-fuel combustion system to which non-condensable off-gases from the chemical reactor and oxygen O2 from the electrolyzer can be supplied, and carbon dioxide CO2 generated during the combustion of the off-gases in the oxy-fuel combustion system can be returned to the stream of hydrogen H2 downstream of the electrolyzer via a return line.

Abstract: A method for preparing a carbonaceous product includes providing oxygen, in particular from electrolysis, and providing a fuel. The method also includes combusting the fuel with the oxygen by an oxy-fuel combustion process in order to provide energy, purifying a flue gas produced by the oxy-fuel combustion process, and separating carbon dioxide from the flue gas produced by the oxy-fuel combustion process, wherein energy provided by the oxy-fuel combustion process includes, in particular exclusively, heat which is used as process heat for purifying and/or for synthesising or providing the carbonaceous product. A corresponding system is designed to carry out the described method.

Abstract: A method for preparing a carbonaceous product includes providing oxygen, in particular from electrolysis, and providing a fuel. The method also includes combusting the fuel with the oxygen by an oxy-fuel combustion process in order to provide energy, purifying a flue gas produced by the oxy-fuel combustion process, and separating carbon dioxide from the flue gas produced by the oxy-fuel combustion process, wherein energy provided by the oxy-fuel combustion process includes, in particular exclusively, heat which is used as process heat for purifying and/or for synthesising or providing the carbonaceous product. A corresponding system is designed to carry out the described method.

Abstract: A method and device for the desulphurisation of a hydrogen sulphide-containing gas flow, in particular for combustion in a gas turbine, wherein the gas flow is brought into contact with a washing agent containing a catalytically active component for the absorption of the hydrogen sulphide and forming elementary sulphur, wherein the catalytically active component is reduced in the formation of the elementary sulphur, wherein the washing medium containing the reduced catalytically active component is supplied to a regeneration stage, in which the reduced catalytically active component is converted back via oxidation with an oxygen-containing gas supplied to the regeneration stage, and wherein the oxygen-containing gas is supplied to the regeneration stage from a compressor of a gas turbine. Air from the compressor of a gas turbine is used for purifying a washing medium used for the desulphurisation of a gas flow.

Abstract: Various embodiments include a method for isolating water from a moist gas mixture comprising: absorbing water in an absorption medium disposed in an absorption unit; separating the water from the loaded absorption medium in a thermal water isolation plant; and regenerating the absorption medium in the thermal water isolation plant with temperatures of less than 100° C. prevailing in the thermal water isolation plant.

Abstract: Various embodiments include a device for extracting water from a humid gas mixture at a first temperature comprising: a compressor to compress the mixture from a first pressure to a second pressure at which the dew point of the mixture lies above the first temperature; a pressure vessel receiving the mixture at the second pressure and condensing out a first fraction of water; a pressure exchanger operable to transfer the second pressure from the gas mixture after removing the first fraction of water to a fresh feed of the gas mixture; and lines connecting the pressure exchanger and the pressure vessel in such a way that the fresh feed at the second pressure can be guided from the pressure exchanger into the pressure vessel, and the gas mixture with the reduced water content can be guided from the pressure vessel into the pressure exchanger.

Abstract: In order to reduce computation time and cost involved with detecting and diagnosing a fault in a system, simplified representations of components of the system are used to estimate valid intervals for state variables at the components. Generic failure rules are configured to compare the estimated valid intervals to related intervals for the same state variables, from either observations or propagations, for overlap. Failure output vectors are generated based on the comparison, and the failure output vectors are compared to diagnostic matrices to determine a source of the fault.

Abstract: A device for separating carbon dioxide from a gas flow, in particular from a flue gas flow, having an absorption unit for separating carbon dioxide from the gas flow using a scrubbing medium, a desorption unit which is fluidically connected to the absorption unit for releasing the absorbed carbon dioxide from the scrubbing medium, and a compressor unit which is connected fluidically downstream of the desorption unit for compressing the released carbon dioxide, the compressor unit being connected fluidically upstream of a cleaning device for the carbon dioxide. A method separates carbon dioxide from a gas flow, in particular from a flue gas flow.

Abstract: A method and device for the desulphurisation of a hydrogen sulphide-containing gas flow, in particular for combustion in a gas turbine, wherein the gas flow is brought into contact with a washing agent containing a catalytically active component for the absorption of the hydrogen sulphide and forming elementary sulphur, wherein the catalytically active component is reduced in the formation of the elementary sulphur, wherein the washing medium containing the reduced catalytically active component is supplied to a regeneration stage, in which the reduced catalytically active component is converted back via oxidation with an oxygen-containing gas supplied to the regeneration stage, and wherein the oxygen-containing gas is supplied to the regeneration stage from a compressor of a gas turbine. Air from the compressor of a gas turbine is used for purifying a washing medium used for the desulphurisation of a gas flow.

Abstract: An accumulator system is coupled to gas turbines for storing thermal energy in a heat accumulator, having a charge circuit and a discharge circuit. The charge circuit has an electrically operated heat generation device which is configured for generating heat with the utilization of electrical energy. The charge circuit is configured for transferring the heat at least temporarily to the heat accumulator, in order to store the heat therein. The discharge circuit is configured to thermally condition a fluid by the heat from the heat accumulator, and to then guide the fluid to the intake side of a compressor of a gas turbine, wherein the charge circuit has a heat pump as heat generation device.

Abstract: A steam power station is provided having a steam boiler which can be fired by a combustion device in a combustion chamber and has an air preheater which is suitable for removing thermal energy from the flue gas of the combustion chamber in order to transfer the thermal energy to a first air flow, the first air flow being fed back to the combustion chamber at least partly as combustion air. The steam power station also has a high-temperature battery which can likewise be supplied with air from the first air flow.

Abstract: A charging circuit for converting electrical energy into thermal energy is provided, having a compression stage, connected via a shaft to an electric motor, a heat exchanger and an expansion stage, which is connected via a shaft to a generator, wherein the compression stage is connected to the expansion stage via a hot-gas line, and the heat exchanger is connected on the primary side into the hot-gas line, wherein the expansion stage is connected via a return line to the compression stage, so that a closed circuit for a working gas is formed. A recuperator is also provided which, on the primary side, is connected into the hot-gas line between the heat exchanger and the expansion stage and, on the secondary side, is connected into the return line, so that heat from the working gas in the hot-gas line can be transferred to the working gas in the return line.

Abstract: A method for operating a directly heated, solar-thermal steam generator is provided. As per the method, a nominal value {dot over (M)}s for the supply water mass flow {dot over (M)} is conducted to an apparatus for adjusting the supply water mass flow {dot over (M)} wherein, at the adjustment of the nominal value {dot over (M)}s for the supply water mass flow {dot over (M)}, account is taken of a correction value KT, by which the thermal effects of storage or withdrawal of thermal energy in an evaporator are corrected.

Abstract: A method for retrofitting an already existing gas turbine power plant is provided. The method features at least the following steps: fluidically connecting a gas turbine to a flue gas duct which is suitable for conducting flue gas which is produced by the gas turbine; connecting the flue gas duct to a steam generating unit which is fluidically connected to a water-steam cycle, and via which water-steam cycle a power generating facility can be operated; fluidically connecting a CO2 separation apparatus to the flue gas duct for separating the CO2 from the flue gas in the flue gas duct; and electrically connecting the power generating facility to the CO2 separation apparatus, preferably for the essentially energy-autonomous operation of the CO2 separation apparatus.

Abstract: A device for using carbon dioxide originating from the combustion of a byproduct has a preparing unit which is connected to a delivery station for fossil fuels, which has a burner for combusting a byproduct that is released when the fuel is delivered, and an exhaust gas line that is connected to the burner. A depositing device is fluidically connected to the preparing unit via the exhaust gas line, for carbon dioxide. The depositing device is fluidically connected to the delivery station to redeliver fuel via a supply line for carbon dioxide. Such a device allows the production and the subsequent controlled use of carbon dioxide from previously unused byproducts in the production of crude oil. A corresponding method by which carbon dioxide originating from the combustion of a byproduct is used in a controlled manner, in particular as part of a fossil fuel extraction process.

Abstract: An energy storage power plant for harvesting electric energy, and suitable for converting electric energy into thermal energy is provided. The thermal energy can be temporarily stored in at least two thermal stores until demanded and retrieved to increase the energy content of water in a water circuit upon demand. The power plant has the at least two thermal stores, each has at least one converting device that allows electric energy to be directly or indirectly converted into thermal energy, the thermal stores being thermally chargeable by temporarily storing thermal energy, wherein one thermal store is for storing sensible heat and one thermal store is for storing latent heat; and at least one energy generating unit operated using the water in the water circuit, the energy content of the water having been increased by the temporary storage of thermal energy, in order to generate electric energy when operated.

Abstract: An accumulator system is coupled to gas turbines for storing thermal energy in a heat accumulator, having a charge circuit and a discharge circuit. The charge circuit has an electrically operated heat generation device which is configured for generating heat with the utilization of electrical energy. The charge circuit is configured for transferring the heat at least temporarily to the heat accumulator, in order to store the heat therein. The discharge circuit is configured to thermally condition a fluid by the heat from the heat accumulator, and to then guide the fluid to the intake side of a compressor of a gas turbine, wherein the charge circuit has a heat pump as heat generation device.

Abstract: An apparatus for carrying out a carbon monoxide shift reaction, which includes converting carbon monoxide and water into carbon dioxide and hydrogen, the converting proceeding in a liquid phase with removal of a product gas including carbon dioxide and hydrogen, is provided. The apparatus includes dry methanol, as a first solvent in a first region for an absorption of carbon monoxide with simultaneous formation of methyl formate, and water, as a second solvent in a second region for a liberation of the product gas in order to avoid losses of hydrogen in a carbon dioxide region.

Abstract: A gas turbine power plant includes a gas turbine having a compressor, combustion chamber, and expander and is rotationally mechanically coupled to an energisation unit designed for motor operation of the compressor and for electricity-generating generator operation of the gas turbine. The power plant includes a recuperator, thermally connected to an exhaust-gas discharge line of the turbine such that heat is transferred from the exhaust-gas flow in the exhaust-gas discharge line to a fluid flow in a fluid line during operation, which fluid flow is fed to the combustion chamber. A supply line is fluidically connected to the turbine such that water is supplied to the turbine to increase operating mass flow during operation. The exhaust-gas discharge line is thermally coupled to at least one heat accumulator, such that, during operation, heat of the exhaust-gas flow is transferred to a heat accumulator medium for storage in the heat accumulator.

Abstract: A method for capturing carbon dioxide is provided. In a first absorption process, carbon dioxide is absorbed by contacting a supplied carbon dioxide-containing natural gas with a first substream of a solvent. In this process a carbon dioxide-depleted natural gas and carbon dioxide-enriched solvent are formed. Then in a combustion process, the carbon dioxide-depleted natural gas is burnt, with a carbon dioxide-containing exhaust gas being formed. Then, in a second absorption process, carbon dioxide is absorbed by contacting the carbon dioxide-containing exhaust gas with a second substream of the solvent. In this process an exhaust gas freed from carbon dioxide and carbon dioxide-enriched solvent are formed. Then, in a desorption process, the first substream and the second substream of the carbon dioxide-enriched solvent are combined and carbon dioxide is desorbed by supplying heating energy, with carbon dioxide-depleted solvent being formed.