Partager

Document IIF

Séparation des gaz de synthèse à basse température pour la capture du CO2 à partir d'une centrale électrique intégrée gazéification / cycle mixte.

Low-temperature syngas separation for CO2 capture from an IGCC power plant.

Numéro : pap. ID: 670

Auteurs : BERSTAD D., NEKSA P., ANANTHARAMAN R.

Résumé

As an alternative to physical and chemical absorption, low-temperature CO2 capture by partial condensation and phase separation can be applied in low-emission integrated gasification and combined cycle (IGCC) power plants. By syngas pre-compression to 110 bar and cooling to 217 K, a CO2 capture ratio of about 85% can be obtained by a single flash separation. In order to obtain high-purity CO2 and recover hydrogen absorbed in the liquid phase, a secondary flash separation takes place at lower pressure. An advantage of capturing CO2 in liquid form is the low power consumption caused by final compression from capture to transport pressure. For 85% CO2 capture ratio a specific CO2 capture and compression penalty of 332 kJ/kg (CO2) is estimated, based on the presented process assumptions and simulation model. With respect to energy consumption, results obtained in this work make low-temperature CO2 capture a competitive alternative to baseline technologies.

Documents disponibles

Format PDF

Pages : 8 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Low-temperature syngas separation for CO2 capture from an IGCC power plant.
  • Identifiant de la fiche : 30002120
  • Langues : Anglais
  • 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

Liens


Voir d'autres communications du même compte rendu (569)
Voir le compte rendu de la conférence

Indexation