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Dynamiques des installations de liquéfaction de gaz naturel liquéfié : stratégies de modélisation et de contrôle de pointe.

Dynamics of baseload liquefied natural gas plants: advanced modelling and control strategies.

Auteurs : OKASINSKI M. J., SCHENK M. A.

Résumé

In order to provide technical advice to the various operating LNG plants employing our LNG process technology and equipment, Air Products has invested in developing a framework for analyzing different operational strategies. While doing so, we have also been able to expand the use of our dynamic model framework to the engineering phase of the project to help to optimize plant design, for example, providing guidelines for sizing relief valves, through studies of various operation upset scenarios. The dynamic model was built with actual plant parameters so that the interaction of the physical process and the control system for all operating scenarios can be investigated efficiently. This model includes the capability of simulating multiphase flows during plant shutdowns, including flow reversals, to capture the short and long time-scale dynamics, thus providing a platform to improve transient operations. Some of the scenarios that were simulated with the framework are presented in this paper: varying productions; loss of equipment services; compressor blocked discharge scenarios; loss of feed flow.

Détails

  • Titre original : Dynamics of baseload liquefied natural gas plants: advanced modelling and control strategies.
  • Identifiant de la fiche : 2008-1109
  • Langues : Anglais
  • Source : LNG 15. Proceedings of the 15th International Conference and Exhibition of Liquefied Natural Gas.
  • Date d'édition : 24/04/2007

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