US 12,000,291 B2
Hydrogen cooling turboexpander
Jeffrey Earl, Hermosa Beach, CA (US)
Assigned to Sapphire Technologies, Inc., Cerritos, CA (US)
Filed by Sapphire Technologies, Inc., Cerritos, CA (US)
Filed on Sep. 27, 2022, as Appl. No. 17/935,740.
Prior Publication US 2024/0102401 A1, Mar. 28, 2024
Int. Cl. F01D 15/10 (2006.01); F01D 25/12 (2006.01)
CPC F01D 15/10 (2013.01) [F01D 25/12 (2013.01); F05D 2220/7642 (2013.01); F05D 2260/20 (2013.01); F05D 2270/3011 (2013.01); F05D 2270/3013 (2013.01); F05D 2270/303 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, at an inlet of a turboexpander generator, a flow of hydrogen gas from a hydrogen storage tank, wherein an electric chiller is fluidly connected to the turboexpander generator between the hydrogen storage tank and the turboexpander generator, the electric chiller configured to cool the flow of hydrogen gas;
reducing a pressure and a temperature of the hydrogen gas with the turboexpander generator; and
outputting the hydrogen gas from the turboexpander generator toward a hydrogen dispenser.