Patent ID: 8557205
Filing Date: 2013-10-15
Classification: B01D,Y02A,Y02C,Y02E

Abstract:
1. A method for the separation of carbon dioxide from an exhaust gas of a fossil-fired power plant, the method comprising: an absorption process wherein the exhaust gas containing carbon dioxide is brought into contact with an absorption medium so that an absorption medium laden with carbon dioxide is formed, a desorption process wherein vapor from a water/steam circuit of the fossil-fired power plant is heated, and in which a laden absorption medium is regenerated so that a regenerated absorption medium is formed, an expansion process following the desorption process, wherein 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, wherein the laden absorption medium is divided at least into a first part stream and a second part stream, and wherein only the second part stream is brought into heat-exchanging contact with the expanded absorption medium, and the first part stream and the second part stream are supplied to the desorption process at different process stages.