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CARGO STRIPPING FEATURES FOR DUAL-PURPOSE CRYOGENIC TANKS ON SHIPS OR FLOATING STORAGE UNITS FOR LNG AND LIQUID NITROGEN
CARGO STRIPPING FEATURES FOR DUAL-PURPOSE CRYOGENIC TANKS ON SHIPS OR FLOATING STORAGE UNITS FOR LNG AND LIQUID NITROGEN
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机译:用于LNG和液氮的船舶或浮动储存单元上的二零冷冻罐的货物汽提特征
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摘要
An apparatus and method of storing and transporting, in a dual-use cryogenic storage tank, a cryogenic liquid having a liquefaction temperature. A first pump empties the tank of a first portion of the cryogenic liquid, thereby leaving a second portion of the cryogenic liquid in the cryogenic storage tank. A second portion of the cryogenic liquid is focused at a location on a bottom of the cryogenic storage tank. Using a second pump located at the location, the cryogenic storage tank is emptied of the second portion of the cryogenic liquid, whereby a residual portion of the cryogenic liquid is left therein. Using a focused heating structure, heat may be delivered to the location to raise the temperature of the residual portion above the liquefaction temperature, thereby vaporizing all of the residual portion.
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