Patent SG-11201900720U-A (SG)
Title: Apparatus for endothermic process with improved tubes arrangement
Inventor: TUDORACHE DIANA
IPC: F23C13/00
Filed: 2017-07-12
Abstract: Occ O C () INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number WO 2018/024455 Al O II (43) International Publication Date 08 February 2018 (08.02.2018) W I P I PCT T2W 8a (51) International Patent Classification: F23C 5/08 (2006.01) F23C 13/00 (2006.01) (21) International Application Number: PCT/EP2017/067625 (22) International Filing Date: 12 July 2017 (12.07.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 16306000.7 02 August 2016 (02.08.2016) EP (71) Applicant: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PRO- CEDES GEORGES CLAUDE [FR/FR]; Direction de la Propriete Intellectuelle, 75, Quai d'Orsay, 75007 PARIS (FR). (72) Inventor: TUDORACHE, Diana; 1, rue du Fond Garant, 91440 Bures-sur-Yvette (FR). (74) Agent: CONAN, Philippe; L'Air Liquide S.A., 75, Quai d'Orsay, 75321 PARIS CEDEX 07 (FR). (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, JO, JP, KE, KG, KH, 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, (54) Title: APPARATUS FOR ENDOTHERMIC PROCESS WITH IMPROVED TUBES ARRANGEMENT 12 Figure 6 T2T 11-1110 41-11. 0 0 * • 8b SI I (57) : A furnace for performing an endothermic process, comprising tubes containing a catalyst for converting a gaseous feed, wherein tubes are positioned in rows inside the furnace, wherein burners are mounted between the tubes and between the tubes and the furnace walls parallel to the tubes rows, and wherein the burners rows and the tubes rows are ended by end walls and are divided into sections with, on each row of tubes, the distance from a wall end tube to the end wall being T2W, the distance between two adjacent inner tubes in a section being T2T, and the distance between two symmetry end tubes of two adjacent sections being T2S, wherein the tubes in the rows are arranged in such a way that the ratios T2T/T2W and T2T/T2S are greater than 0.5 and smaller than 2 thus limiting the differences in the heat transfer to the outer tubes (wall end tubes and symmetry end tubes) with respect to the inner tubes and reducing the temperature difference between outer tubes and inner tubes. [Continued on next page] WO 2018/024455 Al MIDEDIM01101 OIDIIMERI0N101 OlOMO11111101111111111111111111111111 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. (84) 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: of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3))