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Optimisation du fonctionnement des systèmes faisant appel aux frigorigènes mélangés : utilisation d'une simulation rigoureuse pour améliorer l'efficacité du procédé.

Operational optimization for mixed-refrigerant systems: use rigorous simulation to improve process efficiency.

Auteurs : ZHANG J., XU Q., LI K.

Type d'article : Article

Résumé

Since a refrigeration system can cool down a process stream far below the ambient temperature, it is indispensable to cryogenic cooling and separation operations in many chemical industries, such as the large-scale production of ethylene, oxygen, nitrogen and liquefied natural gas (LNG). From a thermodynamic viewpoint, a mixed-refrigerant system provides refrigeration over a range of temperatures, with smaller temperature differences at the lower temperatures. This leads to a smaller increase in entropy, or a smaller loss of energy.

Détails

  • Titre original : Operational optimization for mixed-refrigerant systems: use rigorous simulation to improve process efficiency.
  • Identifiant de la fiche : 30004861
  • Langues : Anglais
  • Source : Hydrocarbon Processing - vol. 91 - n. 4
  • Date d'édition : 04/2012

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