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Réactivité de déshydratation et d’hydratation du Mg(OH)2 modifié au LiOH pour le stockage chimique de chaleur.

Dehydration and Hydration Reactivity of LiOH-modified Mg(OH)2 for Chemical Heat Storage.

Numéro : C-HM-1029

Auteurs : KUROSAWA R., RYU J.

Résumé

In this study, the dehydration and hydration reactivity of lithium hydroxide-modified magnesium hydroxides (LiOH/Mg(OH)2) was studied. The effect of lithium hydroxide addition on the dehydration or hydration behavior was studied experimentally. LiOH/Mg(OH)2 dehydrated efficiently at 270°C, and shows the reversibility on the hydration reaction. The heat output density of samples (Mg(OH)2:LiOH = 100:20, 100:25, 100:33, 100:50 (mole ratio)) were almost same at a hydration temperature of 110°C and a partial water vapor pressure of 57.8kPa. So the best mole ratio of samples is Mg(OH)2:LiOH=100:20. LiOH/Mg(OH)2 (especially Mg(OH)2:LiOH = 100:20) shows the potential performance as a chemical heat storage material.

Détails

  • Titre original : Dehydration and Hydration Reactivity of LiOH-modified Mg(OH)2 for Chemical Heat Storage.
  • Identifiant de la fiche : 30023176
  • Langues : Anglais
  • Source : International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.
  • Date d'édition : 07/08/2017

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