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US 10,479,678 B2Granted
Ortho-H2 refueling for extended cryogenic pressure vessel dormancy
AssigneeLawrence Livermore National Security, LLC
InventorsGuillaume Petitpas, Salvador M. Aceves
Life of this patent
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Abstract
A cryogenic hydrogen storage system reduces hydrogen loss by providing an initial supply of hydrogen wherein the initial hydrogen has an initial para/ortho hydrogen ratio. The initial hydrogen having an initial para/ortho hydrogen ratio is adjusted to produce final hydrogen having a final para/ortho hydrogen ratio with a greater amount of ortho hydrogen, The cryogenic hydrogen storage system is refueled with the final hydrogen having a final para/ortho hydrogen ratio with a greater amount of ortho hydrogen.
Claims4
An apparatus for hydrogen fueling, comprising:
- a vehicle;
- a cryogenic hydrogen storage unit in said vehicle;
- a connectivity device in said vehicle adapted to establish a hydrogen connection with said cryogenic hydrogen storage unit in said vehicle;
- a bulk hydrogen source containing initial hydrogen wherein said initial hydrogen has an initial para/ortho hydrogen ratio and wherein said initial hydrogen is ninety nine and eight tenths percent para-hydrogen;
- a hydrogen fuel dispenser that includes a hose with a connector wherein said hose with a connector of said hydrogen fuel dispenser is adapted to be connected to said connectivity device in said vehicle to establish a hydrogen connection with said cryogenic hydrogen storage unit in said vehicle;
- a hydrogen storage pump connected to said bulk hydrogen source for pumping said initial hydrogen that has an initial para/ortho hydrogen ratio and that is ninety nine and eight tenths percent para-hydrogen;
- a catalyst unit connected between said hydrogen storage pump and said hydrogen fuel dispenser that-receives said initial hydrogen having an initial para/ortho hydrogen ratio and that is ninety nine and eight tenths percent para-hydrogen, wherein said initial hydrogen flows to said catalyst unit and said catalyst unit adjusts said initial para/ortho hydrogen ratio to produce final hydrogen having a final para/ortho hydrogen ratio with a five to twenty percent greater amount of ortho hydrogen;
- and
- a copper metal block that comprises said catalyst unit;
- wherein said hydrogen fuels dispenser fuel said cryogenic hydrogen storage unit in said vehicle with said final hydrogen having a final para/ortho hydrogen ratio with a five to twenty percent greater amount of ortho hydrogen.
7 more elements
An apparatus for hydrogen fueling, comprising;
- a vehicle;
- a cryogenic hydrogen storage unit in said vehicle;
- a connectivity device in said vehicle adapted to establish a hydrogen connection with said cryogenic hydrogen storage unit in said vehicle;
- a bulk hydrogen source containing initial hydrogen wherein said initial hydrogen has an initial para/ortho hydrogen ratio and wherein said initial hydrogen is ninety nine and eight tenths percent para-hydrogen;
- a hydrogen fuel dispenser that includes a hose with a connector wherein said hose with a connector of said hydrogen fuel dispenser is adapted to be connected to said connectivity device in said vehicle to establish a hydrogen connection with said cryogenic hydrogen storage unit in said vehicle;
- a hydrogen storage pump connected to said bulk hydrogen source for pumping said initial hydrogen that has an initial para/ortho hydrogen ratio and that is ninety nine and eight tenths percent para-hydrogen;
- a catalyst unit connected between said hydrogen storage pump and said hydrogen fuel dispenser that-receives said initial hydrogen having an initial para/ortho hydrogen ratio and that is ninety nine and eight tenths percent para-hydrogen, wherein said initial hydrogen flows to said catalyst unit and said catalyst unit adjusts said initial para/ortho hydrogen ratio to produce final hydrogen having a final para/ortho hydrogen ratio with a five to twenty percent greater amount of ortho hydrogen;
- and
- an aluminum metal block that comprises said catalyst unit;
- wherein said hydrogen fuel dispenser fuels said cryogenic hydrogen storage unit in said vehicle with said final hydrogen having a final para/ortho hydrogen ratio with a five to twenty percent greater amount of ortho hydrogen.
7 more elements
An apparatus for hydrogen fueling, comprising:
- a vehicle;
- a vehicle connectivity device in said vehicle;
- a cryogenic hydrogen storage unit in said vehicle, wherein said connectivity device in said vehicle is adapted to establish a hydrogen connection with said cryogenic hydrogen storage unit in said vehicle;
- a bulk hydrogen source;
- a hydrogen storage pump connected to said bulk hydrogen source;
- a hydrogen fuel dispenser;
- a hose connected to said hydrogen fuel dispenser;
- a connector connected to said hose, wherein said connecter is adapted to be connected to said vehicle connectivity device;
- and
- a catalyst unit connected between said hydrogen storage pump and said hydrogen fuel dispenser, wherein said catalyst unit comprises a copper metal block.
7 more elements
Dependencies are inferred from the claim text.