Cryo Pur

Joseph Toubassy

Denis Clodic

Method of liquefaction of methane and filling a tank () with liquefied methane, said method comprising: 

Method and device for liquefaction of methane

A method of recovering energy produced by the change of phase of dry ice using a device having an enclosure () containing dry ice at an infra-atmospheric pressure and at a solidification temperature corresponding to the infra-atmospheric pressure; and a primary energy recovery circuit (), in which a heat transfer fluid circulates, passing through the enclosure. The method involves passage of the heat transfer fluid into the primary circuit (), this step causing the heating of the dry ice and its change of phase into CO2 and the cooling of the heat transfer fluid; extraction of the CO2 contained in the enclosure (); and substantially continuous lowering of the pressure of the enclosure () to an infra-atmospheric pressure.

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Palaiseau, France

Joseph Toubassy