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1. (WO2017098099) METHOD FOR LIQUEFYING NATURAL GAS AND NITROGEN
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/098099 International Application No.: PCT/FR2016/052888
Publication Date: 15.06.2017 International Filing Date: 08.11.2016
IPC:
F25J 1/00 (2006.01) ,F25J 1/02 (2006.01) ,F25J 3/04 (2006.01)
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
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
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
3
Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification
02
by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
04
for air
Applicants:
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE [FR/FR]; Direction de la Propriété Intellectuelle 75, Quai d'Orsay 75007 Paris, FR
Inventors:
CHAMBRON, Nicolas; FR
DUBETTIER-GRENIER, Richard; FR
JOLY, Loïc; FR
MEUNIER, Vianney; FR
SZAMLEWSKI, Christophe; FR
Agent:
DE BEAUFORT, François-Xavier; FR
Priority Data:
156192307.12.2015FR
Title (EN) METHOD FOR LIQUEFYING NATURAL GAS AND NITROGEN
(FR) PROCÉDÉ DE LIQUÉFACTION DE GAZ NATUREL ET D'AZOTE
Abstract:
(EN) Method for producing liquefied natural gas and a stream of liquid nitrogen comprising at least the following steps: step a): production of gaseous nitrogen by an air separation unit (ASU); step b): liquefaction of a stream of natural gas in a natural gas liquefaction unit comprising a main heat exchanger and a frigorie production system; step c): liquefaction of the stream of nitrogen originating from step a) in the said main exchanger of the natural gas liquefaction unit in parallel with the natural gas liquefied in step b); characterized in that all the cold required for liquefying the stream of nitrogen and for liquefying the natural gas is supplied by the said frigorie production system of the natural gas liquefaction unit.
(FR) Procédé de production de gaz naturel liquéfié et d'un courant d'azote liquide comprenant au moins les étapes suivantes: Étape a): production d'azote gazeux par une unité de séparation d'air(ASU); Étape b): liquéfaction d'un courant de gaz naturel dans une unité de liquéfaction de gaz naturel comprenant un échangeur de chaleur principal et un système de production de frigories; Étape c): liquéfaction du courant d'azote issu de l'étape a) dans ledit échangeur principal de l'unité de liquéfaction de gaz naturel en parallèle du gaz naturel liquéfié à l'étape b); caractérisé en ce que tout le froid nécessaire à la liquéfaction du courant d'azote et à la liquéfaction du gaz naturel est fourni par ledit système de production de frigories de l'unité de liquéfaction de gaz naturel.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, 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, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
FR3044747CA3007571CN108474613EP3387352EA201891282US20180372404