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Capture du CO2 grâce à un dispositif anti-sublimation utilisant un système en cascade intégré.

CO2 capture by anti-sublimation using integrated cascade system.

Numéro : pap. ID: 916

Auteurs : CLODIC D., YOUNES M., RIACHI Y., et al.

Résumé

The Centre for Energy and Processes has been working since 10 years on CO2 capture from flue gases by frosting CO2 on low-temperature heat exchangers. The seven authors of this paper have been working for 3 to 10 years on this new process designed in order to recover the sublimation and the melting energy by the refrigerant blend itself. An integrated cascade, working with a blend of several hydrocarbons whose composition is adapted to the CO2 concentration of flue gases, generates the cooling capacity. The integrated cascade concept makes possible defrosting the low-temperature heat exchangers by the refrigerant blend itself allowing the recovery of a significant part of energy. The paper presents also the energy consumption for CO2 capture efficiency of 90% on a coal-fired power plant of 800 MWe. Furthermore, a description of the flue gas cooling and coldness recovery from 120°C down to -100°C is presented along with the gas cleaning options that can be implemented in those cooling units.

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Pages : 7 p.

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Détails

  • Titre original : CO2 capture by anti-sublimation using integrated cascade system.
  • Identifiant de la fiche : 30001647
  • Langues : Anglais
  • Sujet : Environnement
  • Source : Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Date d'édition : 21/08/2011

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