EP 1959217 A3 20120801 - Apparatus and method for reliquefying boil-off gas capable of operating with variable refrigeration load
Title (en)
Apparatus and method for reliquefying boil-off gas capable of operating with variable refrigeration load
Title (de)
Vorrichtung und Verfahren zur Rückverflüssigung von Boil-off-Gas geeignet zum Betrieb mit variabler Kühlleistung
Title (fr)
Appareil et procédé pour reliquéfier un vaporisat capable de fonctionner à une charge de réfrigération variable
Publication
Application
Priority
KR 20070014682 A 20070213
Abstract (en)
[origin: EP1959217A2] The invention relates to an apparatus and a method for reliquefying boil-off gas in which the refrigeration load of a refrigeration system (20) can be changed when the reliquefaction load of the apparatus for reliquefying boil-off gas is changed. The boil-off gas reliquefaction apparatus according to the present invention, which supercools and reliquefies the boil-off gas generated in an LNG storage tank (1) by allowing the boil-off gas to pass through a cryogenic heat exchanger (11) via a boil-off gas discharge line (L1), and then to pass through a gas-liquid separator (13) installed at a rear end of the cryogenic heat exchanger (11), so as to return the boil-off gas to the LNG storage tank (1), is characterized in that the cryogenic heat exchanger (11) is connected to a refrigeration system (20) for compressing and expanding a refrigerant, in that the refrigerant system (20) comprises a multi-stage compressor (21a, 21b, 21c, 22a, 22b, 22c), an expander, (23) and a motor (M), and in that the motor is connected to an inverter (60).
IPC 8 full level
CPC (source: EP KR)
F17C 7/00 (2013.01 - KR); F17C 13/00 (2013.01 - KR); F25J 1/0025 (2013.01 - EP); F25J 1/005 (2013.01 - EP); F25J 1/0072 (2013.01 - EP); F25J 1/0204 (2013.01 - EP); F25J 1/025 (2013.01 - EP); F25J 1/0277 (2013.01 - EP); F25J 1/0279 (2013.01 - EP); F25J 1/0284 (2013.01 - EP); F25J 1/0288 (2013.01 - EP); F25J 1/0298 (2013.01 - EP); F17C 2265/03 (2013.01 - EP); F17C 2265/035 (2013.01 - EP); F25J 2220/62 (2013.01 - EP)
Citation (search report)
- [Y] EP 1120615 A2 20010801 - CRYOSTAR FRANCE SA [FR]
- [Y] WO 2006009646 A2 20060126 - EXXONMOBIL UPSTREAM RES CO [US], et al
- [A] WO 2007011155 A1 20070125 - SHINYOUNG HEAVY IND CO LTD [KR], et al
- [A] WO 2006052392 A2 20060518 - EXXONMOBIL UPSTREAM RES CO [US], et al
- [A] WO 2005047789 A2 20050526 - EXXONMOBIL UPSTREAM RES CO [US], et al
- [A] WO 2006078104 A1 20060727 - DAEWOO SHIPBUILDING & MARINE [KR]
- [Y] PETERSEN P D: "BREAKING", HYDROCARBON ENGINEERING, PALLADIAN PUBLICATIONS, FARNHAM, GB, 1 January 2006 (2006-01-01), pages 44 - 46,48, XP000962926, ISSN: 1468-9340
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1959217 A2 20080820; EP 1959217 A3 20120801; KR 100804953 B1 20080220
DOCDB simple family (application)
EP 07121837 A 20071129; KR 20070014682 A 20070213