SYSTEMS AND METHODS FOR IMPROVING NATURAL GAS USAGE IN STEAM METHANE REFORMERS

摘要

A HA M (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 02 August 2018 (02.08.2018) WIP0 I PCT onion °nolo olomoliolu 1101 IIII iflo oimIE (10) International Publication Number WO 2018/140686 Al (51) International Patent Classification: CO1B 3/38 (2006.01) CO1B 3/56 (2006.01) CO1B 3/48 (2006.01) (21) International Application Number: PCT/US2018/015382 (22) International Filing Date: 26 January 2018 (26.01.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/417,803 27 January 2017 (27.01.2017) US (71) Applicant: L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PRO- CEDES GEORGES CLAUDE [FR/FR]; 75 quai d'Orsay, F-75007 Paris (FR). (72) Inventors; and (71) Applicants (for US only): KANG, Taekyu [KR/US]; 17 Hummingbird Lane, Newark, Delaware 19711 (US). SHRI- VASTAVA, Swatantra Kumar [IN/DE]; Gartenstrabe 18, 35423 Lich (DE). LEHMANN, Maik [DE/DE]; Saalbur- gallee 3, 60385 Frankfurt am Main (DE). (74) Agent: MURRAY, Justin K. et al.; 9811 Katy Freeway, Suite 100, Houston, Texas 77024 (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, 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, 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, (54) Title: SYSTEMS AND METHODS FOR IMPROVING NATURAL GAS USAGE IN STEAM METHANE REFORMERS ESA OFF GAS FUEL NG 210 J .- 208 V V V BURNERS 206 PEA REFORMER 04 202 1-1 GC 1-1 1-1 00 O N 14 PROCESS NO FLUE OAS COMBO LION AIR j „,- 216 PA A - , (.. - E+GAS PREH ATER (57) : An improved hydrogen generation system and method for using the same are provided. The system includes an HDS unit configured to desulfurize hydrocarbons, a pre-reformer configured to convert heavy hydrocarbons within the process gas stream to methane, a reformer configured to produce a syngas stream and a flue gas, a PSA unit configured to produce a product hydrogen stream and a PSA off-gas stream, and means for cooling the flue gas against a combustion air and the PSA off-gas stream to a temperature below the dew point of sulfuric acid. [Continued on next page] 4- PRE- EFORME 216 r i 41 c GB 214 212 FIG. 2 WO 2018/140686 Al MIDEDIM01101 OIONER13010M01111111111110111111111111111111111111 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). Published: — with international search report (Art. 21(3))