Invention Application
- Patent Title: SYSTEM AND METHOD FOR TREATING BOIL-OFF GAS IN SHIP
- Patent Title (中): 用于在船上处理废气的系统和方法
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Application No.: US14895201Application Date: 2014-06-26
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Publication No.: US20160114876A1Publication Date: 2016-04-28
- Inventor: Joon Chae LEE , Dong Kyu CHOI , Young Sik MOON , Seung Kyo JUNG , Je Heon JUNG
- Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
- Priority: KR10-2013-0073731 20130626; KR10-2013-0122494 20131015; KR10-2014-0033792 20140324
- International Application: PCT/KR2014/005672 WO 20140626
- Main IPC: B63H21/38
- IPC: B63H21/38 ; F25J1/00 ; F02C3/22 ; F17C7/04 ; F17C13/00 ; B63B25/16 ; F02M21/06

Abstract:
In a BOG treatment system, boil-off gas (BOG) discharged from a storage tank is compressed, most of the BOG is used as the fuel of vessel engines, and a remaining part of the BOG is liquefied by cold energy of BOG newly discharged from the storage tank and is returned to the storage tank, thereby efficiently utilizing the BOG. The BOG treatment system for a vessel includes a compressor compressing the BOG discharged from the storage tank; a medium pressure gas engine receiving at least a part of the BOG compressed by the compressor, as fuel; a heat exchanger exchanging heat between the remaining part of the BOG, which is not supplied to the medium pressure gas engine as fuel, and the BOG, which is discharged from the storage tank and is not compressed; and an expander decompressing the remaining part of the BOG cooled by the heat exchanger.
Public/Granted literature
- US10518859B2 System and method for treating boil-off gas in ship Public/Granted day:2019-12-31
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