Invention Grant
- Patent Title: Systems and methods for zeolite catalyst pore blocking modifications for hydrocarbon conversion reactions
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Application No.: US16675735Application Date: 2019-11-06
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Publication No.: US11090643B2Publication Date: 2021-08-17
- Inventor: Emad Naji Al-Shafei , Oki Muraza , Ki-Hyouk Choi , Ali Al-Nasir , Zain Hassan Yamani , Idris Akolade Bakare , Mohammad Al-Abdullah
- Applicant: Saudi Arabian Oil Company , King Fahd University of Petroleum and Minerals
- Applicant Address: SA Dhahran; SA Dhahran
- Assignee: Saudi Arabian Oil Company,King Fahd University of Petroleum and Minerals
- Current Assignee: Saudi Arabian Oil Company,King Fahd University of Petroleum and Minerals
- Current Assignee Address: SA Dhahran; SA Dhahran
- Agency: Bracewell LLP
- Agent Constance G. Rhebergen; Kevin R. Tamm
- Main IPC: C01B39/02
- IPC: C01B39/02 ; B01J37/02 ; C10G47/16 ; B01J37/00 ; B01J29/40 ; B01J29/90 ; B01J37/04 ; B01J37/08 ; B01J38/12 ; C01B39/38 ; C10G11/05
Abstract:
Systems and methods for production of externally-pore-blocked, internally-pore-opened modified zeolite crystals, the method including mixing zeolite crystals with an organic pore blocking agent; heating the zeolite crystals mixed with the organic pore blocking agent to block internal pores of the zeolite crystals and produce internally-pore-blocked zeolite crystals; mixing the internally-pore-blocked zeolite crystals with an external pore blocking agent; and calcining the internally-pore-blocked zeolite crystals mixed with the external pore blocking agent, to re-open internal pores via decomposition of the organic pore blocking agent and to block external pores via formation of a silica layer over external pores of the zeolite crystals, forming the externally-pore-blocked, internally-pore-opened modified zeolite crystals.
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