Hydrogen tank filling device.

Abstract

A pressurized hydrogen tank filling device, the filling device comprising a transfer line (1) configured to convey a hydrogen flow from a hydrogen source (2) to a tank to be filled, the transfer line (1) comprising: - a system for purifying the hydrogen flow supplied by the source, configured to remove at least part of an impurity contained in the supplied hydrogen flow and thus produce purified hydrogen, the filling device comprising: - a bypass path of the purification system, configured to bypass at least part of the purification system for the hydrogen flow, - a fluid switching device configured to circulate the hydrogen flow through the purification system and / or through the bypass path, - a data acquisition device (19), - a control unit (20) configured to control the fluid switching device.based on data from the data acquisition device (19). Figure from the abstract: 1,

Claims

13. Method for filling pressurized hydrogen tank(s), comprising the steps of: - supplying a hydrogen flow from a hydrogen source (2), the hydrogen flow being able to comprise at least one impurity such as sulfur and / or halogenated compounds, oxygen, aqueous compounds, carbon dioxide and / or carbon monoxide - supplying a device for filling hydrogen tank(s) with the supplied hydrogen flow, the filling device comprising a system for purifying the supplied hydrogen flow and a fluidic switching device, - acquiring data for determining an absence of need for purification of the supplied hydrogen flow or data relating to a malfunction or maintenance of the purification system,- controlling the fluidic switching device so as to bypass at least part of the purification system with at least part of the flow of hydrogen supplied.,

14. Method according to the preceding claim, comprising the following steps: - acquisition of data for determining a need for purification of the flow of hydrogen supplied, - control of the fluidic switching device so as to circulate the flow of hydrogen supplied through the purification system, - purification of the flow of hydrogen circulating through the purification system and production of purified hydrogen.

15. Method according to one of claims 13 or 14, comprising the following steps: - measuring an impurity concentration in the supplied hydrogen flow or in the supplied hydrogen flow, - calculating a difference between the measured concentration and a set value of impurity concentration, - determining an absence of need for purification of the supplied hydrogen flow if the calculated difference is less than a predetermined threshold value, - determining a need for purification of the supplied hydrogen flow if the calculated difference is greater than the predetermined threshold value.

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