公开(公告)号：US11808411B2

公开(公告)日：2023-11-07

申请号：US16917038

申请日：2020-06-30

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Donghwan Lee ,  Sathish Balasubramanian

IPC: F17C7/00 ,  F17C7/04 ,  F04B15/08 ,  F17C6/00 ,  B63B25/16 ,  B63B25/08

CPC classification number: F17C7/04 ,  F04B15/08 ,  F17C6/00 ,  B63B25/16 ,  B63B2025/087 ,  F17C2223/0161

Abstract: 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.