Hydrogen filling method and station
First Claim
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1. A hydrogen filling station comprising:
- a source tank intended to contain liquefied hydrogen (LH2);
a withdrawing pipe for withdrawing the liquefied hydrogen from the source tank to at least one user station;
a cryogenic pump positioned in the withdrawing pipe;
an electric power source connected to the cryogenic pump, the electric power source operable to supply the cryogenic pump with electricity, the electric power source comprising at least one fuel cell, wherein the fuel cell comprises a fuel supply inlet; and
a degassing tank in fluid communication with the cryogenic pump via a degassing line such that the degassing tank is operable to recover a portion of the hydrogen that evaporates within the cryogenic pump, wherein the degassing tank comprises a gas withdrawal outlet, wherein the degassing tank is in fluid communication with the fuel cell via a supply pipe connecting the fuel supply inlet with the gas withdrawal outlet.
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Abstract
Hydrogen filling station, in particular, for refilling vehicle tanks with hydrogen gas, comprising a source reservoir designed to hold liquid hydrogen (LH2), a pipe for withdrawing liquid hydrogen from the source reservoir to at least one user station, an electric cryogenic pump arranged within the withdrawing pipe and an electric power supply connected to the cryogenic pump to supply the same with electricity, characterized in that the electric energy supply comprises at least one fuel cell.
25 Citations
21 Claims
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1. A hydrogen filling station comprising:
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a source tank intended to contain liquefied hydrogen (LH2); a withdrawing pipe for withdrawing the liquefied hydrogen from the source tank to at least one user station; a cryogenic pump positioned in the withdrawing pipe; an electric power source connected to the cryogenic pump, the electric power source operable to supply the cryogenic pump with electricity, the electric power source comprising at least one fuel cell, wherein the fuel cell comprises a fuel supply inlet; and a degassing tank in fluid communication with the cryogenic pump via a degassing line such that the degassing tank is operable to recover a portion of the hydrogen that evaporates within the cryogenic pump, wherein the degassing tank comprises a gas withdrawal outlet, wherein the degassing tank is in fluid communication with the fuel cell via a supply pipe connecting the fuel supply inlet with the gas withdrawal outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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- 10. A hydrogen refueling method, using a filling station comprising a source tank intended to contain liquefied hydrogen (LH2), a withdrawing pipe for withdrawing liquefied hydrogen from the source tank to at least one user station, an electric cryogenic pump positioned in the withdrawing pipe, wherein the method comprises a step in which the cryogenic pump is electrically powered via a fuel cell and a step in which hydrogen gas vaporized by the cryogenic pump is recirculated to supply the fuel cell with fuel.
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17. A gas filling station comprising:
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a source tank operable to contain liquefied hydrogen (LH2); a withdrawing pipe operable to transfer the LH2 from the source tank to a user station; a cryogenic pump in fluid communication with the withdrawing pipe, wherein the cryogenic pump is operable to pump LH2 from the source tank to the user station; and a power source operable to provide power to the cryogenic pump, the power source comprising a fuel cell, the fuel cell operable to receive hydrogen vaporized from the cryogenic pump. - View Dependent Claims (18, 19, 20, 21)
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Specification