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Étude expérimentale de la liquéfaction du CO2 à basse température et de la séparation de phases pour le captage du carbone.

Experimental investigation of low temperature CO2 liquefaction and phase-separation for carbon capture.

Numéro : pap. 0044

Auteurs : TRAEDAL S., BERSTAD D., STANG J.

Résumé

A low-temperature CO2 liquefaction and phase-separation experimental rig has been built in SINTEF's Thermal Energy laboratory in Trondheim for investigation of carbon capture and CO2 liquefaction applications. This paper describes the experimental setup and results from the first experimental runs. The rig has been operated with two different binary feed compositions; 63 mol% CO2 - 37 mol% N2, and 76 mol% CO2 - 24 mol% N2. These compositions are representative of a flue gas stream from for example a cement factory after an initial membrane based bulk separation of the flue gas. The experimental results have been compared to steady-state equilibrium process simulations. These are found to be in close agreement with each other for process conditions, liquid CO2 product purity and Carbon Capture Ratio. Liquid CO2 product purity can be controlled by controlling the separation pressure in the second separator. Reduced separation pressure leads to increased CO2 product purity. The process is found to be stable and easily controllable.

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Détails

  • Titre original : Experimental investigation of low temperature CO2 liquefaction and phase-separation for carbon capture.
  • Identifiant de la fiche : 30025763
  • Langues : Anglais
  • Source : Cryogenics 2019. Proceedings of the 15th IIR International Conference: Prague, Czech Republic, April 8-11, 2019.
  • Date d'édition : 08/05/2019
  • DOI : http://dx.doi.org/10.18462/iir.cryo.2019.0044

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