Patent SG-11201803521S-A (SG)
Title: Method of natural gas liquefaction on lng carriers storing liquid nitrogen
Inventor: PIERRE FRITZ
IPC: F25J1/02
Filed: 2016-11-10
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 22 June 2017 (22.06.2017) WIPOIPCT (10) International Publication Number WO 2017/105681 A1 (51) International Patent Classification: F25J1/02 (2006.01) F25J1/00 (2006.01) (21) International Application Number: PCT/US2016/061249 (22) International Filing Date: (25) Filing Language: (26) Publication Language 10 November 2016 (10.11.2016) English (30) Priority Data: 62/266,983 14 December 2015 (14.12.2015) US (71) Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY [US/US]; CORP-URC-E2.4A.296, 22777 Springwoods Village Parkway, Spring, TX 77389 (US). (72) Inventors; and (71) Applicants (for US only): PIERRE, Fritz, Jr. [US/US]; 18011 Bayou Mead Trail, Humble, TX 77346 (US). VIC­ TORY, Donald, J. [US/US]; 70 Grassy Knolls, Sugar Land, TX 77479 (US). (74) Agents: JENSEN, Nathan, O. et al.; Exxonmobil Up­ stream Research Company, CORP-URC-E2.4A.296, 22777 Springwoods Village Parkway, Spring, TX 77389 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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. English (§4) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) — as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3)) (54) Title: METHOD OF NATURAL GAS LIQUEFACTION ON LNG CARRIERS STORING LIQUID NITROGEN 00 in n O FIG. 2 (57) : A method for producing liquefied natural gas (LNG). A natural gas stream is transported to a liquefaction vessel. The natural gas stream is liquefied on the liquefaction vessel using at least one heat exchanger that exchanges heat between the natural gas stream and a liquid nitrogen stream to at least partially vaporize the liquefied nitrogen stream, thereby forming a warmed nitro - gen gas stream and an at least partially condensed natural gas stream comprising LNG. The liquefaction vessel includes at least one tank that only stores liquid nitrogen and at least one tank that only stores LNG.