摘要:
A method for separating carbon dioxide from a flue gas of a fossil fuel-operated power plant is provided. In the method, a fossil fuel is initially burned in a combustion process, wherein a hot waste gas containing carbon dioxide is produced. In a next process step, waste gas containing carbon dioxide is brought into contact with an absorption medium in an absorption process, wherein carbon dioxide is absorbed by the absorption medium, thus forming a charged absorption medium. Next, gaseous carbon dioxide is thermally expelled from the charged absorption medium in a desorption process. For this purpose, a vapor is supplied to the desorption process, the vapor is injected into the charged absorption medium, wherein the condensation heat released by the condensation of the vapor is transferred to the charged absorption medium, and the partial pressure of the carbon dioxide is simultaneously reduced in the desorption unit.
摘要:
A method for separating carbon dioxide from a flue gas of a fossil fuel-operated power plant is provided. In the method, a fossil fuel is initially burned in a combustion process, wherein a hot waste gas containing carbon dioxide is produced. In a next process step, waste gas containing carbon dioxide is brought into contact with an absorption medium in an absorption process, wherein carbon dioxide is absorbed by the absorption medium, thus forming a charged absorption medium. Next, gaseous carbon dioxide is thermally expelled from the charged absorption medium in a desorption process. For this purpose, a vapor is supplied to the desorption process, the vapor is injected into the charged absorption medium, wherein the condensation heat released by the condensation of the vapor is transferred to the charged absorption medium, and the partial pressure of the carbon dioxide is simultaneously reduced in the desorption unit.
摘要:
A method and corresponding apparatus for separation of carbon dioxide from an exhaust gas of a fossil-fired power are provided. In an absorption process, the exhaust gas containing carbon dioxide is brought into contact with an absorption medium so that the absorption medium is laden with carbon dioxide. In a desorption process, vapor from a water/steam circuit of the fossil-fired power plant is heated, wherein a laden absorption medium is regenerated. In a subsequent expansion process, the regenerated absorption medium is expanded so that a vapor and an expanded absorption medium are formed, wherein the vapor is recirculated into the desorption process. The laden absorption medium is divided into a first part stream and a second part stream. Only the second part stream is brought into heat-exchanging contact with the expanded absorption medium. The first and second part streams are supplied to the desorption process at different process stages.
摘要:
A method and corresponding apparatus for separation of carbon dioxide from an exhaust gas of a fossil-fired power are provided. In an absorption process, the exhaust gas containing carbon dioxide is brought into contact with an absorption medium so that the absorption medium is laden with carbon dioxide. In a desorption process, vapor from a water/steam circuit of the fossil-fired power plant is heated, wherein a laden absorption medium is regenerated. In a subsequent expansion process, the regenerated absorption medium is expanded so that a vapor and an expanded absorption medium are formed, wherein the vapor is recirculated into the desorption process. The laden absorption medium is divided into a first part stream and a second part stream. Only the second part stream is brought into heat-exchanging contact with the expanded absorption medium. The first and second part streams are supplied to the desorption process at different process stages.
摘要:
The invention relates to a process for the chromatographic separation of components (19, 20, 25, 26, 28, 29) of a multiple-component fluid mixture (2a) by means of the Simulated Moving Bed process, in which the multiple-component fluid mixture (2a) and at least one solvent (3a) are passed into a plurality of at least one chamber (10a-10c; 11a-11c; 12a-12c; 13a-13c) or chamber sections containing a solid, at a first and second input (9b, 9d; 9f, 9h), and an extract flow (6a), which contains at least one first component (19, 26, 29) separated from the multiple-component fluid mixture (2a), as well as a raffinate flow (7a), which contains at least one second component (20, 25, 28) separated from the multiple-component fluid mixture (2a) are drawn off from the chambers (10a-10c; 11a-11 c; 12a-12c; 13a-13c) or chamber sections at a first and second outlet (9a, 9c; 9e, 9g), whereby the chambers (10a-10c; 11a-11c; 12a-12c; 13a-13c) or chamber sections forming a closed circuit (8a, 8b; 18) are connected together in series, whereby the concentration of the input multiple-component fluid mixture (2a) and/or a composition of the solvent (3a) is/are changed within the cycle unit.
摘要:
A fossil-fuel-fired power plant, having a combustion device, a CO2 separation device, which is arranged downstream of the fossil-fuel-fired power plant, for removing CO2, and a CO2 compressor station, which is arranged downstream of the CO2 separation device and which has a number of compressor stages and coolers for intermediate cooling is provided. The coolers are connected to the CO2 separation device or the fossil-fuel-fired power plant by means of a condensate line in order to recover condensate. A method for carrying out the condensate recovery is also provided.
摘要:
The invention relates to a process for the chromatographic separation of components (19, 20, 25, 26, 28, 29) of a multiple-component fluid mixture (2a) by means of the Simulated Moving Bed process, in which the multiple-component fluid mixture (2a) and at least one solvent (3a) are passed into a plurality of at least one chamber (10a-10c; 11a-11c; 12a-12c; 13a-13c) or chamber sections containing a solid, at a first and second input (9b, 9d; 9f, 9h), and an extract flow (6a), which contains at least one first component (19, 26, 29) separated from the multiple-component fluid mixture (2a), as well as a raffinate flow (7a), which contains at least one second component (20, 25, 28) separated from the multiple-component fluid mixture (2a) are drawn off from the chambers (10a-10c; 11a-11c; 12a-12c; 13a-13c) or chamber sections at a first and second outlet (9a, 9c; 9e, 9g), whereby the chambers (10a-10c; 11a-11c; 12a-12c; 13a-13c) or chamber sections forming a closed circuit (8a, 8b; 18) are connected together in series, whereby the concentration of the input multiple-component fluid mixture (2a) and/or a composition of the solvent (3a) is/are changed within the cycle unit.
摘要:
A separation apparatus for carbon dioxide is provided which includes an absorption unit for absorbing flue gas from a fossil-fueled power station, a desorption unit and a heat exchanger which on the primary feed side is connected via an inlet-side feedback line to the desorption unit, and on the discharge side is connected via an outlet-side feedback line to the absorption unit. On the secondary feed side, the heat exchanger is connected via an inlet-side feed line to the absorption unit, and on the discharge side is connected via an outlet-side feed line to the desorption unit. A first bypass line connects the inlet-side feedback line to the outlet-side feed line so that a mostly closed first circuit with the desorption unit is formed, and a second bypass line connects the inlet-side feed line to the outlet-side feedback line so a mostly closed second circuit with the absorption unit is formed.
摘要:
A separation apparatus for carbon dioxide is provided which includes an absorption unit for absorbing flue gas from a fossil-fueled power station, a desorption unit and a heat exchanger which on the primary feed side is connected via an inlet-side feedback line to the desorption unit, and on the discharge side is connected via an outlet-side feedback line to the absorption unit. On the secondary feed side, the heat exchanger is connected via an inlet-side feed line to the absorption unit, and on the discharge side is connected via an outlet-side feed line to the desorption unit. A first bypass line connects the inlet-side feedback line to the outlet-side feed line so that a mostly closed first circuit with the desorption unit is formed, and a second bypass line connects the inlet-side feed line to the outlet-side feedback line so a mostly closed second circuit with the absorption unit is formed.