Method and system for processing a liquid natural gas stream at a lng import terminal
AssigneeShell Oil Company
InventorsMarcel Filip DABKOWSKI, Laurens Joseph Arnold Marie VAN CAMPEN, Pablo Antonio VEGA PEREZ
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Abstract
The invention relates to a of processing a liquid natural gas stream at a LNG import terminal. The method comprises operating a vaporization unit obtaining a pressurized vaporized natural gas stream and operating a slushification unit to obtain a slush of liquid and solids and a cooled vapour phase. The method further comprises withdrawing the cooled vapour phase from the slushifier providing a cooled vapour stream and passing the cooled vapour stream to the vaporization unit.
Claims18
Method of processing a liquid natural gas stream, the method comprises
- a) operating a vaporization unit by:
- providing a first liquid natural gas stream from one or more storage tanks,
- pressurizing the first liquid natural gas stream providing a pressurized liquid natural gas stream,
- vaporizing the pressurized liquid natural gas stream obtaining a pressurized vaporized natural gas stream,
- b) operating a slushification unit by:
- providing a second liquid natural gas stream from the one or more storage tanks,
- passing the second liquid natural gas stream to a slushifier in which the second liquid natural gas stream is cooled down and depressurized to triple point conditions of the liquid natural gas stream to obtain a slush of liquid and solids and a cooled vapour phase,
- withdrawing the cooled vapour phase from the slushifier providing a cooled vapour stream and
- passing the cooled vapour stream to the vaporization unit.
System for processing a liquid natural gas stream, the system comprises a vaporization unit, wherein the vaporization unit comprises
- a pressurizer unit arranged to receive a first liquid natural gas stream from one or more storage tanks and generate a pressurized liquid natural gas stream,
- a vaporizer arranged to receive the pressurized liquid natural gas stream and generate a pressurized vaporized natural gas stream,
- wherein the system further comprises a slushification unit, wherein the slushification unit comprises
- a slushifier arranged to receive a second liquid natural gas stream from one or more storage tanks and generate a slush of liquid and solids and a cooled vapour stream,
- wherein the vaporization unit is in fluid communication with the slushification unit to receive at least part of the cooled vapour stream.
Dependencies are inferred from the claim text.