Abstract: Systems and methods are provided for delivering excess electric power to an electric power grid from a marine transportation vessel while said marine transportation vessel is at port.

Abstract: A method is disclosed for unloading a plurality of containers containing pressurized liquefied gas in which the liquefied gas has a temperature above −112° C. A pressurized displacement liquid is fed to a first of the plurality of containers to discharge the pressurized liquefied gas therefrom. The displacement liquid is then pumped from the first container to a second container of the plurality of containers to discharge liquefied gas therefrom. As the displacement liquid is removed from the first container, the space caused by the removal of the displacement liquid is filled with a vapor at a lower pressure than the pressure of displacement liquid. Fluid communication between the first second containers is then severed and the above steps are repeated for all containers in succession, except that for the last container in the series the displacement liquid is pumped therefrom to an auxiliary container for storage rather than to another container.

Abstract: A container is provided for storing pressurized liquefied natural gas at a pressure of about 1035 kPa (150 psia) to about 7590 kPa (1100 psia) and at a temperature of about -123.degree. C. (-190.degree. F.) to about -62.degree. C. (-80.degree. F.). The container is constructed from an ultra-high strength, low alloy steel containing less than 9 wt % nickel and having a tensile strength greater than 830 MPa (120 ksi) and a DBTT lower than about -73.degree. C. (-100.degree. F.).

Abstract: Carbonyl sulfide is removed from propane and other similar liquefied petroleum gas products by mixing liquid methanol with the untreated liquefied gas and then contacting the liquid mixture with solid potassium hydroxide.