Systems and processes for recovering a vapor from a vessel

A system for recovering a gas from a vessel, comprising:

• a floating buoy comprising:
• a rotatable turntable, wherein:
• the rotatable turntable comprises a fluid swivel assembly coupled to the floating buoy, and
• the fluid swivel assembly comprises a first swivel section rotatably coupled to a second swivel section;
• a first floating conduit in fluid communication with a first gas transfer conduit, wherein the first gas transfer conduit is in fluid communication with a first flow path defined by the first swivel section;
• a second gas transfer conduit in fluid communication with a first flow path defined by the second swivel section;
• a gas submarine conduit in fluid communication with the second gas transfer conduit and a gas pipeline end manifold located subsea;
• a liquid submarine conduit in fluid communication with a liquid pipeline end manifold and a first liquid transfer conduit, wherein the first liquid transfer conduit is in fluid communication with a second flow path defined by the second swivel section;
• a second liquid transfer conduit in fluid communication with a second flow path defined by the first swivel section;
• and
• a second floating conduit in fluid communication with the second liquid transfer conduit;
• wherein:
• the first swivel section and the second swivel section are configured to maintain fluid communication between the first gas transfer conduit and the second gas transfer conduit,
• the first swivel section and the second swivel section are configured to maintain fluid communication between the first liquid transfer conduit and the second liquid transfer conduit,
• the liquid submarine conduit, the first liquid transfer conduit, the second liquid transfer conduit, and the second floating conduit are configured to convey a liquid from the liquid pipeline end manifold into a storage tank on the vessel,
• the first floating conduit, the first gas transfer conduit, the second gas transfer conduit, and the gas submarine conduit are configured to convey a gas discharged from the storage tank into the gas pipeline end manifold when the liquid is conveyed into the storage tank,
• the liquid submarine conduit is configured to operate in a Chinese lantern configuration, a steep-S configuration, or a lazy-S configuration below the floating buoy, and
• the gas submarine conduit is configured to operate in a Chinese lantern configuration below the floating buoy.