L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Olga Wojdas

Fouad Ammouri

Olivier Beuneken

Marie Delclaud

Arthur Thomas

Sitra Colom

A method for filling a tank () with liquefied gas, in particular a tank with cryogenic liquid, from a liquefied gas container (), in particular a cryogenic liquid container (), which container () is in fluid communication with the tank () via a filling pipe (), wherein the method uses a pressure differential generation member () for transferring liquid from the container () to the tank () at a predetermined pressure, characterized in that, at or following the switching on time (M) of the pressure differential generation member (), the method comprises a step of determining the pressure (PT) in the tank () via a measurement of a first pressure in the filling pipe (), and, following the determination of the pressure (PT) in the tank, a step of limiting the first instantaneous pressure (PT) to a level below a maximum pressure threshold (PTsup), said maximum pressure threshold being defined on the basis of the determined value of the pressure (PT) in the tank () and exceeding said determined value of the pressure (PT) in the tank by two to twenty bars and preferably by two to nine bars.

Method for filling a tank with liquefied gas

A method for filling a tank () with liquefied gas, in particular a tank with cryogenic liquid, from a liquefied gas container (), in particular a cryogenic liquid container (), wherein, following a predetermined time after filling has started, the method comprises the step of comparing the first instantaneous pressure (PT) in the filling pipe () or an average of said first instantaneous pressure (PT) with a predetermined maximum threshold (Pmax), and, when said first instantaneous pressure (PT) in the filling pipe () or the average of said first instantaneous pressure (PT), respectively, exceeds the maximum threshold (Pmax), the step of interrupting (AR) the filling (R).

Method and device for filling a tank with liquefied gas

A method for filling a tank () with liquefied gas, in particular a tank with cryogenic liquid, from a liquefied gas container (), in particular a cryogenic liquid container (), which container () is in fluid communication with the tank () via a filling pipe (), wherein the method uses a pressure differential generation member () for transferring liquid from the container () to the tank () at a predetermined pressure, characterized in that, at or following the switching on time (M) of the pressure differential generation member (), the method comprises a step of determining the pressure (PT4) in the tank () via a measurement of a first pressure in the filling pipe (), and, following the determination of the pressure (PT4) in the tank, a step of limiting the first instantaneous pressure (PT3) to a level below a maximum pressure threshold (PT3sup), said maximum pressure threshold being defined on the basis of the determined value of the pressure (PT4) in the tank () and exceeding said determined value of the pressure (PT4) in the tank by two to twenty bars and preferably by two to nine bars.

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Juvisy-sur-Orge, France

Olga Wojdas