abstract |
A container for the storage of pressurized natural gas at a pressure of 1035 kPa (150 psia) up to 7590 kPa (1100 psia) and at a temperature of -123 ° C (-190 ° F) to -62 ° C (-80 ° F ), where said container is constructed of materials made of an ultra high strength low alloy steel, which contains less than 9% nickel weight and has a tensile strength greater than 830 MPa (120 ksi) and a lower DBTT -73 ° C (-100 ° F) .1 A method of transporting pressurized liquefied natural gas to an import terminal, where said pressurized liquefied natural gas has a pressure of 1035 KPa (150 psia) to 7590 KPa (1100 psia) and a temperature of -123 ° C (-190 ° F) to -62 ° C (-80 ° F), said method comprises the steps of: (a) discharging said pressurized liquefied natural gas to a marine tank, where said marine tank It has at least one storage container that is constructed of material made of ultra high strength low alloy steel , which contains less than 9% by weight nickel and has a tensile strength greater than 830 MPa (120 Ksi) and a DBTT of less than -73 ° C (-100 ° F), and (b) Boosting said marine tank by means of a body of water to said import terminal. |