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System and method for processing boil-off gas

A boil-off gas and processing system technology, applied in the field of boil-off gas processing, can solve the problems of LNG storage tank explosion, loss of LNG transportation efficiency, reduction and other problems

Active Publication Date: 2016-10-12
DAEWOO SHIPBUILDING & MARINE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The generation of BOG leads to the loss of LNG and reduces the transportation efficiency
In addition, when boil-off gas accumulates in the tank, there is a risk of explosion due to excessive pressure increase in the LNG tank

Method used

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  • System and method for processing boil-off gas
  • System and method for processing boil-off gas

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Embodiment Construction

[0028] The above and other aspects, features and advantages of the present invention will become apparent from the detailed description of the following embodiments in conjunction with the accompanying drawings.

[0029] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that throughout the specification and drawings, like reference numerals will refer to like components.

[0030] The boil-off gas processing system according to the present invention can be used in a ship or ship structure equipped with an LNG storage tank in which boil-off gas is generated, such as LNG- RV (Regasification Vessel) and LNG-FSRU (Floating Storage Regasification Unit).

[0031] For example, it is well known that 150000m 3 Vessels have an evaporative gas rate of 3 ton / h to 4 t / h when fully loaded, and 0.3 t / h to 0.4 t / h under ballast conditions, but the evaporative gas rate depends on the capacity of the...

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Abstract

Disclosed are a system and a method for processing boil-off gas. A system for processing boil-off gas, which is generated in an LNG storage tank in a ship or a marine structure, according to the present invention comprises: a regasification line for supplying natural gas by regasifying LNG stored in the LNG storage tank; and a high-pressure compression line for compressing the boil-off gas generated in the LNG storage tank to a high pressure and supplying to a point down-stream from the regasification line.

Description

technical field [0001] The present invention relates to a system and method for treating boil-off gas, and more particularly, to a system and method for treating boil-off gas which can compress boil-off gas generated in an LNG storage tank to high pressure and The compressed boil-off gas is supplied downstream of the regasification line so that the boil-off gas is supplied together with the regasified natural gas when the natural gas is supplied to land through the regasification line for regasification of LNG stored in the LNG storage tank supplied to land. Background technique [0002] Liquefied Natural Gas (hereinafter referred to as "LNG") is a colorless and transparent liquid obtained by cooling natural gas mainly composed of methane (Methane) to about -162° C., and has a volume of about 1 / 600 volume. Therefore, natural gas can be efficiently transported by liquefying the natural gas into LNG. [0003] Since natural gas liquefies at an extremely low temperature of -...

Claims

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Application Information

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IPC IPC(8): B63B25/16F17C9/00B63H21/38F02M21/02
CPCB63B25/16F02D19/022F02M21/0215F02M21/0221F02M21/0245F02M21/029F17C7/04F17C2201/052F17C2221/033F17C2223/0161F17C2223/033F17C2225/0123F17C2225/036F17C2227/0135F17C2227/0157F17C2227/0302F17C2265/034F17C2265/037F17C2265/05F17C2265/066F17C2270/0105F17C2270/0113Y02T10/30B63H21/38B67D9/00F02M21/02F17C9/00
Inventor 李昌雨文荣植兪炳瑢金洛贤
Owner DAEWOO SHIPBUILDING & MARINE ENG CO LTD