Patent SG-11201809722R-A (SG)
Title: Novel process designs for increased selectivity and capacity for hydrogen sulfide capture from acid gases
Inventor: PEREIRA CARLA
IPC: B01D53/18
Filed: 2017-04-19
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property MD HIM 0 11101 HOE 010 1111 1 0 01 010 110111111 MO IMI 110 11110 ill OEN Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\"\"1 WO 2017/209849 Al 07 December 2017 (07.12.2017) WIP0 I PCT (51) (21) (22) (25) Filing Language: (26) (30) (71) (72) International Patent Classification: Scotch Plains Avenue, Westfield, NJ 07090 (US). GUP- BOW 53/14 (2006.01) BOlD 53/18 (2006.01) TA, Himanshu; 146 Conover Terrace, Lebanon, NJ 08833 International Application Number: (US). PCT/US2017/028227 (74) Agent: WARD, Andrew T. et al.; Exxonmobil Research International Filing Date: And Engineering Company, 1545, Route 22 East, P.O.box 19 April 2017 (19.04.2017) 900, Annandale, NJ 08801-0900 (US). English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, Publication Language: English AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, Priority Data: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 15/169,835 01 June 2016 (01.06.2016) US 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, Applicant: EXXONMOBIL RESEARCH AND EN- KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, GINEERING COMPANY [US/US]; 1545 Route 22 East, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, P.O. box 900, Annandale, NJ 08801-0900 (US). 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, Inventors: PEREIRA, Carla, S.; 125 West Main Street, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. Somerville, NJ 08876 (US). SISKIN, Michael; 209 South (54) Title: NOVEL PROCESS DESIGNS FOR INCREASED SELECTIVITY FROM ACID GASES 21 4— AND CAPACITY CondeseF FOR HYDROGEN SULFIDE CAP- 26 = TURE = = — imei 200 F - i 22 / _ = Lean AnaneO Conies 22 \ Rene 210 the by lower comprises acid 2 / 8 CO2 is disclosed. A water recycle feed and having a greater having a greater H 5 selectivity at 2 utilizing two different absorbents, acid gas loadings, and a second gas loadings. = = = = 29 Margebt7KT1 20 I = = — = : A system and process stream is fed to the absorber in order to create a higher selectivity at lower acid gas loadings, acid gas loadings. Also disclosed is a system and process for selectively separating H absorbent for the upper section of for the lower section of the absorber, tailored to have a greater H25 selectivity at higher absorbent 24 _ = = m — Rich-L ger Heat Exchan 28 for selectively separating and a more dilute absorbent below the recycle feed and the absorber, tailored to have a greater H25 selectivity at iRebuel = — FIG. 3 H25 from a gas mixture which also concentration absorbent above 2 5 = 1-1 t:t 7r GC (57) 01 recycle 0 el H 2 S .---- higher IN 1-1 one ei C [Continued on next page] WO 2017/209849 Al MIDEDIMOMOIDEIRMEM0010101101HEIBIONVOIMIE (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: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) — 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)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))