Patent SG-11201910144R-A (SG)
Title: Methods of producing hierarchical beta zeolites with tunable mesoporosity through pore directing agent assisted base leaching
Inventor: ZHANG KE
IPC: C01B39/48
Filed: 2018-04-16
Abstract: WO 18/ 20 4057 Al nm FIG. 10 14411111111161111iff 500 nm (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 November 2018 (08.11.2018) WIPO I PCT mu °mons ono o Holonmosioommom oimIE (10) International Publication Number WO 2018/204057 Al (51) International Patent Classification: C01B 39/02 (2006.01) C01B 3 9 / 4 8 (2006.01) (21) International Application Number: PCT/US2018/027731 (22) International Filing Date: 16 April 2018 (16.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/583,380 01 May 2017 (01.05.2017) US (71) Applicant: SAUDI ARABIAN OIL COMPANY [SA/SA]; Post Office Box 5000, 31311 Dhahran (SA). (71) Applicant (for AG only): ARAMCO SERVICES COM- PANY [US/US]; 9009 West Loop South, Houston, Texas 77096 (US). (72) Inventors: ZHANG, Ke; c/o Aramco Company Services, 9009 West Loop South, Houston, Texas 77096 (US). FER- NANDEZ, Sergio; c/o Aramco Company Services, 9009 West Loop South, Houston, Texas 77096 (US). (74) Agent: HADDACH, Aubrey A. et al.; Dinsmore & Shohl LLP, One South Main Street, Suite 1300, Fifth Third Center, Dayton, Ohio 45402 (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, 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)) with amended claims (Art. 19(1)) (54) Title: METHODS OF PRODUCING HIERARCHICAL BETA ZEOLITES WITH TUNABLE MESOPOROSITY THROUGH PORE DIRECTING AGENT ASSISTED BASE LEACHING (57) : Methods for producing mesoporous beta zeolites from parent beta zeolites having a Si/Al molar ratio of at least 10 comprise selecting a target average mesoporous size between 2 nm and 8 nm for the parent beta zeolites, selecting a pore directing agent (PDA) based on the target average mesopore size, where a non-ionic surfac- tant, a small cationic surfactant has a molecular weight of greater than 100 grams/mole, or both may be selected as the PDA when the target average mesopore size is at least 5 nm, and a large cationic surfactant having a molecular weight of less than 100 grams/mole may be se- lected as the PDA when the target average mesopore size is less than 5 nm. The method further comprises adding the selected PDA to an alkaline solution to form a PDA-base mixture, and adding the parent beta zeolites to the PDA-base mixture to produce the mesoporous be- ta zeolites.