CPC F17C 1/002 (2013.01) [F17C 13/002 (2013.01); F25J 1/0025 (2013.01); F17C 2201/052 (2013.01); F17C 2221/033 (2013.01); F17C 2223/0123 (2013.01); F17C 2223/0161 (2013.01); F17C 2223/033 (2013.01); F17C 2223/043 (2013.01); F17C 2223/046 (2013.01); F17C 2225/0161 (2013.01); F17C 2225/033 (2013.01); F17C 2225/035 (2013.01); F17C 2225/044 (2013.01); F17C 2225/046 (2013.01); F17C 2227/0135 (2013.01); F17C 2227/0157 (2013.01); F17C 2227/039 (2013.01); F17C 2227/0339 (2013.01); F17C 2250/01 (2013.01); F17C 2265/034 (2013.01); F17C 2265/066 (2013.01); F17C 2270/0105 (2013.01)] | 9 Claims |
1. A method for the transport of liquefied gas, comprising:
transporting liquefied gas in a vessel, the vessel comprising:
a hull,
at least one cargo storage tank arranged in the hull for storing liquefied gas,
at least one engine to propel the vessel;
receiving boil-off gas at a compressor inlet of at least one compressor, the compressor inlet connected to a vapour space of the at least one cargo storage tank, at a first pressure (P1);
using the compressor to supply pressurized boil-off gas to the at least one engine at a second pressure (P2) exceeding the first pressure;
diverting at least part of the pressurized boil-off gas to a boil-off gas recovery system for recovery of boil-off gas;
recondensing the at least part of the pressurized boil-off gas in a cooling section of the BOG recovery system to provide recondensed pressurized boil-off gas;
storing the recondensed pressurized boil-off gas in at least one recovery tank, wherein the recovery tank having a total volume for storing the recondensed pressurized boil-off gas being in the order of about 0.5% to 5% of the total volume of the at least one cargo tank.
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