Hydrogen dispensing process and system
AssigneeShell Oil Company
InventorNikunj Gupta
Life of this patent
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Abstract
The present invention provides a process for dispensing gaseous hydrogen, comprising the steps of: a) providing a first vessel comprising a first quantity of gaseous hydrogen at a pressure in the range of from 350 to 1000 bar absolute and a temperature in the range of from −20° C. to 50° C.; b) passing in the range of from 40 to 100 wt %, based on the weight of the first quantity, of the first quantity gaseous hydrogen from the first vessel through an isenthalpic valve to obtain a cold second quantity of gaseous hydrogen having a temperature in the range of from −100 to −20° C.; and c) dispensing the cold second quantity of gaseous hydrogen to a second vessel. In a further aspect the invention provides a system for dispensing gaseous hydrogen.
Claims13
A process for dispensing gaseous hydrogen, comprising the steps of:
- a) providing a first vessel comprising a first quantity of gaseous hydrogen at a pressure in the range of from 350 to 1000 bar absolute and a temperature in the range of from −20° C. to 50° C.;
- b) passing in the range of from 40 to 100 wt %, based on the weight of the first quantity, of the first quantity of gaseous hydrogen from the first vessel through an isenthalpic valve to obtain a cold second quantity of gaseous hydrogen having a temperature in the range of from −100 to −20° C.;
- and
- c) dispensing the cold second quantity of gaseous hydrogen to a second vessel.
A system for dispensing gaseous hydrogen, comprising:
- a first vessel, suitable to contain at least pressurised gaseous hydrogen at a pressure above 250 bar absolute having an inlet and an outlet for gaseous hydrogen;
- a gaseous hydrogen dispenser having an inlet and an outlet for gaseous hydrogen;
- means for providing gaseous hydrogen from the outlet of the first vessel to the inlet of the gaseous hydrogen dispenser;
- and
- an isenthalpic valve suitable for controlling a flow of gaseous hydrogen,
- wherein the isenthalpic valve is or is a part of outlet for gaseous hydrogen of the first vessel or is located in the means for providing gaseous hydrogen from the first vessel to the gaseous hydrogen dispenser.
Dependencies are inferred from the claim text.