In this study, the integration of an absorption scrubber for carbon dioxide capture in a Cheng cycle cogeneration plant with district heating is studied. Different CO2 capture systems have been examined, and the most suitable for this type of application has been selected from both the economic and the efficiency viewpoints. The plant can be upgraded without complicated add-on systems and does not require significant redesign of the existing components. Three types of operation have been studied which are representative of winter, summer and spring–autumn conditions. It is shown that lower CO2 emissions are possible without important reductions of efficiency and power output. The power generation costs are greatly influenced by the capital costs of the CO2 capture system. If absorption scrubber capital costs are not going to be reduced in the future, the use of such capture systems will not be competitive with possible application of “carbon taxes”. From the viewpoint of operating costs, the increase in the cost of produced electricity will be similar to the surcharge due to application of the “carbon tax” studied by the European Union for power generation systems.
CO2 Capture in a Small Size Cogeneration Plants: Technical and Economical Considerations
DESIDERI, UMBERTO;
1998-01-01
Abstract
In this study, the integration of an absorption scrubber for carbon dioxide capture in a Cheng cycle cogeneration plant with district heating is studied. Different CO2 capture systems have been examined, and the most suitable for this type of application has been selected from both the economic and the efficiency viewpoints. The plant can be upgraded without complicated add-on systems and does not require significant redesign of the existing components. Three types of operation have been studied which are representative of winter, summer and spring–autumn conditions. It is shown that lower CO2 emissions are possible without important reductions of efficiency and power output. The power generation costs are greatly influenced by the capital costs of the CO2 capture system. If absorption scrubber capital costs are not going to be reduced in the future, the use of such capture systems will not be competitive with possible application of “carbon taxes”. From the viewpoint of operating costs, the increase in the cost of produced electricity will be similar to the surcharge due to application of the “carbon tax” studied by the European Union for power generation systems.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
