King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

King Abdulaziz City for Science and Technology

Idris Akolade Bakare

Zain Hassan Yamani

Oki Muraza

Ki-Hyouk Choi

Emad Naji Al-Shafei

Mohammad Mozahar Hossain

Ali S Al-Nasir

Mohammad Al-Abdullah

Sagir Adamu

Adnan Al Amer

Oxidative dehydrogenation (ODH) of alkanes to alkenes, e.g., propane to propylene, may use solid phase oxygen in VObased mixed oxide catalysts. Beyond catalysis, the metal oxide species provide lattice oxygen. The catalysts can be prepared by depositing vanadium oxide(s) on &#x3b8;-AlOmixed with various alkaline earth metal oxide support, e.g., CaO, MgO, BaO, etc. Surface area, acidity, and reduction properties of the catalyst systems can be modified by the support. The catalysts may allow multistage reduction of VO, indicating different VOspecies. Vanadium on &#x3b8;-AlO/CaO can suppress COx species, while vanadium on &#x3b8;-AlO/BaO can yield at least ca. 49% olefins.

Vanadium oxide catalysts on mixed alumina useful for alkane to alkene conversion

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.

Systems and methods for zeolite catalyst pore blocking modifications for hydrocarbon conversion reactions

This invention relates a process for preparing MTT zeolites which process includes the preparation of a sol-gel from an aluminate solution, mixing a structure directing agent with the sol-gel to form a structure directing mixture, mixing a silica with the structure directing mixture to form a reaction mixture, heating the reaction mixture in a microwave reactor to form an initial zeolite, and removing the structure directing agent to form the MTT zeolite. The invention also relates to MTT zeolites produced by the process, including ZSM-23 zeolites, as well as zeolite membranes, coating and catalysts.

Controlled growth of MTT zeolite by microwave-assisted hydrothermal synthesis

Growing community of inventors

Dhahran, Saudi Arabia

Idris Akolade Bakare