System for offshore production of fuel

A system for offshore production of fuel comprising:

• an offshore marine platform;
• a water purification unit on the marine platform;
• at least one hydrogen production unit on the marine platform in fluid communication with the water purification unit;
• a hydrogen floating storage unit moored adjacent the marine platform and in fluid communication with the hydrogen production unit;
• and
• one or more combustion turbines disposed to combust hydrogen-based fuel produced on the marine platform.

A system for offshore production of fuel comprising:

• an offshore marine platform;
• a water purification unit on the marine platform;
• at least one hydrogen production unit on the marine platform in fluid communication with the water purification unit;
• a hydrogen liquefaction system on the marine platform in fluid communication with the hydrogen production unit;
• a liquified hydrogen floating storage unit moored adjacent the marine platform and in fluid communication with the hydrogen liquefaction system;
• and
• a conveyance system extending away from the marine platform,
• wherein the conveyance system comprises an electrical cable electrically coupled to one or more electric generators.

A system for offshore production of fuel comprising:

• an offshore marine platform;
• a water purification unit on the marine platform;
• at least one hydrogen production unit on the marine platform in fluid communication with the water purification unit;
• a hydrogen liquefaction system on the marine platform in fluid communication with the hydrogen production unit;
• a liquified hydrogen floating storage unit moored adjacent the marine platform and in fluid communication with the hydrogen liquefaction system;
• and
• a conveyance system extending away from the marine platform,
• wherein the conveyance system comprises both a gas pipeline and an electrical cable.

A system for offshore production of fuel comprising:

• an offshore marine platform;
• a water purification unit on the marine platform;
• at least one hydrogen production unit on the marine platform in fluid communication with the water purification unit;
• a hydrogen liquefaction system on the marine platform in fluid communication with the hydrogen production unit;
• and
• a liquified hydrogen floating storage unit moored adjacent the marine platform and in fluid communication with the hydrogen liquefaction system,
• wherein the water purification unit comprises a water purification vessel having a first chamber and a second chamber with a semi-permeable membrane disposed between the first and second chambers, a seawater inlet in the first chamber;
• a purified water outlet in the second chamber;
• a pump for pressurizing the seawater in the first chamber, where the pump is in fluid communication with one or more seawater intakes to draw in seawater for purification.

A system for offshore production of fuel comprising:

• an offshore marine platform having a platform deck and three or more platform legs supporting the platform deck, with at least one seawater intake disposed along at least one leg at first distance from an end of the leg and at least one seawater intake disposed along at least one leg at a second distance from an end of the leg, where the second distance is greater than the first distance;
• a plurality of offshore wind turbines in the vicinity of marine platform and disposed to provide electricity to the marine platform;
• a water purification unit on the marine platform;
• at least one hydrogen production unit on the marine platform in fluid communication with the water purification unit;
• a hydrogen liquefaction system on the marine platform in fluid communication with the hydrogen production unit;
• and
• a liquified hydrogen floating storage unit moored adjacent the marine platform and in fluid communication with the hydrogen liquefaction system.

A system for offshore production of fuel comprising:

• an offshore marine platform;
• a plurality of offshore wind turbines in the vicinity of marine platform and disposed to provide electricity to the marine platform;
• a water purification unit on the marine platform;
• at least one hydrogen production unit on the marine platform in fluid communication with the water purification unit;
• a hydrogen liquefaction system on the marine platform in fluid communication with the hydrogen production unit;
• a liquified hydrogen floating storage unit moored adjacent the marine platform and in fluid communication with the hydrogen liquefaction system;
• a liquified natural gas floating storage unit moored adjacent the marine platform;
• a regasification system on the marine platform and in fluid communication with the liquified natural gas floating storage unit;
• and
• a blending unit on the marine platform and in fluid communication with the regasification system and the hydrogen production unit.

A method for offshore production of fuel comprising:

• pumping seawater to a water purification unit mounted on an offshore marine platform affixed to the seabed;
• utilizing the water purification unit to at least partially purifying the pumped seawater to yield purified water;
• utilizing a hydrogen production unit mounted on the offshore marine platform to produce gaseous hydrogen from the purified water;
• liquifying at least a portion of the gaseous hydrogen onboard the marine platform;
• transferring the liquified hydrogen to a liquified hydrogen floating storage unit moored adjacent the marine platform for storage of the liquefied hydrogen on the liquified hydrogen floating storage unit;
• and
• transferring liquified hydrogen stored on the liquified hydrogen floating storage unit to a liquefied hydrogen transport vessel;
• and
• utilizing a portion of the gaseous hydrogen in combustion turbines in order to produce electricity onboard the marine platform.

A method for offshore production of fuel comprising:

• pumping seawater to a water purification unit mounted on an offshore marine platform affixed to the seabed;
• utilizing the water purification unit to at least partially purifying the pumped seawater to yield purified water;
• utilizing a hydrogen production unit mounted on the offshore marine platform to produce gaseous hydrogen from the purified water;
• supplying liquefied natural gas to the marine platform;
• gasifying the liquefied natural gas supplied to the marine platform to produce gaseous natural gas;
• and
• blending the gaseous natural gas with at least a portion of the gaseous hydrogen produced on the marine platform to produce a blended fuel.

A method for offshore production of fuel comprising:

• supplying electricity to an offshore marine platform from a plurality of offshore wind turbines;
• pumping seawater to a water purification unit mounted on an offshore marine platform affixed to the seabed;
• utilizing the water purification unit to at least partially purifying the pumped seawater to yield purified water;
• utilizing a hydrogen production unit mounted on the offshore marine platform to produce gaseous hydrogen from the purified water;
• and
• transferring at least a portion of the hydrogen to a hydrogen floating storage unit moored adjacent the marine platform;
• supplying liquefied natural gas to the marine platform;
• gasifying the liquefied natural gas supplied to the marine platform to produce gaseous natural gas;
• and
• blending the gaseous natural gas with at least a portion of the hydrogen produced on the marine platform to produce a blended fuel,
• wherein the electricity from the offshore wind turbines is utilized at least by the hydrogen production unit to produce gaseous hydrogen.

A method for offshore production of fuel comprising supplying gaseous hydrogen at an offshore marine platform;

• supplying liquefied natural gas to the marine platform;
• gasifying the liquefied natural gas supplied to the marine platform to produce gaseous natural gas;
• and
• blending the gaseous natural gas with at least a portion of the supplied gaseous hydrogen to produce a blended fuel at the offshore marine platform.