Patent SG-11201810304U-A (SG)
Title: Fired heater with heat pipe preheater
Inventor: LEE HYUNGSIK
IPC: F28D7/08
Filed: 2017-05-26
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 11111110111101110101011111010111110 1111111111111111111111111111101111011111 Organization International Bureau (10) International Publication Number (43) International Publication Date ...... WO 2017/222744 Al 28 December 2017 (28.12.2017) WIP0 I PCT (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every ClOG 9/00 (2006.01) ClOG 9/20 (2006.01) kind of national protection available): AE, AG, AL, AM, F23L 15/00 (2006.01) F28D 7/08 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (21) International Application Number: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, PCT/US2017/034616 DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, (22) International Filing Date: KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, 26 May 2017 (26.05.2017) 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, (25) Filing Language: English SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, (26) Publication Language: English TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 62/352,099 20 June 2016 (20.06.2016) US kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (71) Applicant: EXXONMOBIL RESEARCH AND EN- UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, GINEERING COMPANY [US/US]; 1545 Route 22 East, P.O. Box 900, Annandale, NJ 08801-0900 (US). 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, (72) Inventors: LEE, Hyungsik; 2610 Sherwin Street, Hous- MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, ton, TX 77007 (US). SADDLER, Larry, M.; 3902 Cinna- TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, mon Fern Court, Houston, TX 77059 (US). KM, ML, MR, NE, SN, TD, TG). (74) Agent: BARRETT, Glenn, T. et al.; Exxonmobil Research = And Engineering Company, 1545 Route 22 East, P.O. Box = 900, Annandale, NJ 08801-0900 (US). = = (54) Title: FIRED HEATER WITH HEAT PIPE PREHEATER = (57) : An improved fired heater with air preheating provided by = one or more heat pipes. The fired heater may include at least one bumer for = = = = = = _ 26 I 30 combusting a fuel stream and an air stream and producing heated exhaust gases; a hot gas flow path and at least one conduit containing a process fluid to be heated by heat transfer from the heated exhaust gases; and an air preheater comprising at least one heat pipe having a first section exposed 28 4..... „---10 to the heated exhaust gases and a second section exposed to the air stream, wherein the heat pipe is positioned and arranged to transfer heat from the = = = — = j AP I .......• ill 12 heated exhaust gases to the air stream, wherein the at least one heat pipe contains a working fluid sealed within the heat pipe, wherein said working 22 fluid transfers heat from the heated exhaust gas to the air stream to be preheated. . = 1-1 20 N 71' illb MEM n M ill l 18 14 N iv ei 16 Ir----- FIG. 1 1-1 0 ei C [Continued on next page] WO 2017/222744 Al IMEDIMOMMIONOIDEMEEHOHMEIMME#011# Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(11)) — as to the applicant's entitlement to claim the earlier application (Rule 4.17(iii)) priority of the Published: — with international search report (Art. 21(3))