Patent ID: 11970404
Assignee: STENA POWER & LNG SOLUTIONS AS
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 26:
27. A method for offshore production of fuel comprising:
pumping seawater to a water purification system mounted on an offshore marine platform affixed to the seabed;
utilizing the water purification system to at least partially purifying the pumped seawater to yield purified water;
pumping air to a nitrogen production system mounted on an offshore marine platform;
utilizing the nitrogen production system to produce gaseous nitrogen from the pumped air;
utilizing a hydrogen production system mounted on the offshore marine platform to generate gaseous hydrogen from the purified water;
utilizing an ammonia production system mounted on the offshore marine platform to produce gaseous ammonia from the gaseous nitrogen and gaseous hydrogen;
utilizing a liquefaction system on the marine platform to convert the gaseous ammonia to cryogenic ammonia;
pumping the cryogenic ammonia from the marine platform to a liquified ammonia floating storage unit moored adjacent the marine platform;
gathering a sufficient quantity of cryogenic ammonia on the liquified ammonia floating storage unit and thereafter, pumping the cryogenic ammonia from the liquified ammonia floating storage unit to a liquified ammonia transport vessel, wherein the sufficient quantity of cryogenic ammonia gathered on the floating storage unit is greater than the total storage capacity of the liquified ammonia transport vessel.