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1. (WO2007011155) LNG BOG RELIQUEFACTION APPARATUS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/011155 International Application No.: PCT/KR2006/002818
Publication Date: 25.01.2007 International Filing Date: 19.07.2006
IPC:
C10G 5/00 (2006.01) ,F25J 1/02 (2006.01) ,H01L 21/8242 (2006.01) ,B63H 21/16 (2006.01)
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
G
CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
5
Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
J
LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
1
Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
02
requiring the use of refrigeration, e.g. of helium or hydrogen
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21
Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
70
Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in or on a common substrate or of specific parts thereof; Manufacture of integrated circuit devices or of specific parts thereof
77
Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
78
with subsequent division of the substrate into plural individual devices
82
to produce devices, e.g. integrated circuits, each consisting of a plurality of components
822
the substrate being a semiconductor, using silicon technology
8232
Field-effect technology
8234
MIS technology
8239
Memory structures
8242
Dynamic random access memory structures (DRAM)
B PERFORMING OPERATIONS; TRANSPORTING
63
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
H
MARINE PROPULSION OR STEERING
21
Use of propulsion power plant or units on vessels
12
the vessels being motor-driven
16
relating to gas turbines
Applicants:
SHINYOUNG HEAVY INDUSTRIES CO., LTD. [KR/KR]; 332-6, Nabul-ri, Samho-eup Yeongam-gun Jeollanam-do 526-891, KR (AllExceptUS)
HONG, Eui Seok [KR/KR]; KR (UsOnly)
LEE, Yoon Pyo [KR/KR]; KR (UsOnly)
Inventors:
HONG, Eui Seok; KR
LEE, Yoon Pyo; KR
Agent:
LEE, Soo Wan ; 1901-ho, Keungil Tower 19F, 677-25 Yeoksam-dong Gangnam-gu Seoul 135-914, KR
Priority Data:
10-2005-006550119.07.2005KR
10-2005-007858826.08.2005KR
10-2005-010993117.11.2005KR
10-2006-000127105.01.2006KR
Title (EN) LNG BOG RELIQUEFACTION APPARATUS
(FR) APPAREIL DE RELIQUÉFACTION DE GAZ D’ÉVAPORATS DE GAZ NATUREL LIQUÉFIÉ
Abstract:
(EN) The present invention relates to an apparatus for reliquefying boil-off gas (BOG) generated in a storage tank of a ship for transporting cryogenic liquefied natural gas (LNG). According to the present invention, in an apparatus for reliquefying BOG of LNG, including a compressor for compressing BOG generated in a storage tank for LNG, a condenser for at least partially condensing BOG compressed by the compressor, and a nitrogen cycle device for supplying cold heat to the compressor, so as to return BOG reliquefied by the condenser to the storage tank, BOG compressed by the compressor is subjected to pre-cooling upstream of the condenser, and thus, there is an advantage in that the temperature of BOG can be constantly maintained in a preset range even though the quantity or temperature of BOG generated is changed. Further, according to the present invention, it is possible to reduce the size of the apparatus for reliquefying LNG BOG and stably manage a cryogenic range of nitrogen gas without a loss of cold heat by incorporating unit elements constituting a low temperature section into a cold box device in the apparatus for reliquefying LNG BOG.
(FR) L’invention concerne un appareil de reliquéfaction de gaz d’évaporats (BOG) générés dans un réservoir de stockage d’un vaisseau destiné au transport de gaz naturel liquéfié (LNG) cryogénique. Selon la présente invention, dans un appareil de reliquéfaction de BOG de LNG, comprenant un compresseur destiné à la compression du BOG généré dans un réservoir de stockage destiné au LNG, un condensateur destiné à la condensation au moins partielle du BOG compressé par le compresseur, et un dispositif de cycle d’azote destiné à fournir de la chaleur froide au compresseur, de manière à retourner dans le réservoir de stockage le BOG reliquéfié par le condensateur, le BOG compressé par le compresseur est soumis à un pré-refroidissement en amont du condensateur, et ainsi, l’on procure un avantage en ce qu’il est possible de constamment maintenir la température du BOG dans une plage prédéfinie même en cas de modification de la quantité ou de la température du BOG généré. En outre, selon la présente invention, il est possible de réduire la taille de l’appareil de reliquéfaction de BOG de LNG et de gérer de manière stable une plage cryogénique de gaz azote sans perte de chaleur froide in incorporant des éléments unitaires constituant une section à basse température dans un dispositif de boîte froide au sein de l’appareil de reliquéfaction de BOG de LNG.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Korean (KO)
Also published as:
EP1913117JP2009501896CN101223260