Patent ID: 8206854
Filing Date: 2012-06-26
Classification: C01B,C07D,H01M,Y02E

Abstract:
1. A composition comprising: hydrogen gas; and an oxygenate odorant; wherein the oxygenate odorant has a vapor pressure of about 0.002 psi or greater at 25° C. and 1 atm; wherein the oxygenate odorant has a smell detectable at less than 1 ppm by a human nose; wherein the oxygenate odorant includes one or more carbonyl groups; wherein the oxygenate odorant consists only of carbon, hydrogen and oxygen; wherein the oxygenate odorant is a cyclic compound; and wherein the oxygenate odorant is stable under the high pressure and temperature storage and use conditions required for fuel cells.