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US 7,811,688 B2Granted
Hydrogen odorants and odorant selection method
AssigneeEnersol, Inc. N.A., L.P.
InventorsPatrick J. Flynn, Michael J. Sprague
Life of this patent
Estimating the term…
Abstract
The present invention provides a method for evaluating the properties of hydrogen to improve the safety of hydrogen fuel, and provides a method for selecting proper odorants for hydrogen. Odorized hydrogen containing suitable odorants in appropriate concentrations with hydrogen are also provided.
Claims17
A fuel cell containing a hydrogen composition comprising:
- hydrogen;
- and an odorant, said odorant having a vapor pressure greater than 0.5 psi and having a smell detectable at less than 1 ppm by a human nose, wherein said odorant is a selenium compound.
A fuel cell containing a hydrogen composition comprising:
- hydrogen;
- and an odorant, said odorant having a vapor pressure greater than 0.5 psi and having a smell detectable at less than 1 ppm by a human nose, wherein said odorant is a selenium compound and wherein said fuel cell is a vehicle fuel cell.
Dependencies are inferred from the claim text.