King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

Sabic Global Technologies B.v.

King Abdulaziz City for Science and Technology

Oki Muraza

Zain Hassan Yamani

Ki-Hyouk Choi

Emad Naji Al-Shafei

Ali S Al-Nasir

Mohamed A Ahmed

Idris Akolade Bakare

Anas Karrar Jamil

Muhammad Ali Ehsan

Abbas Saeed Hakeem

Ashok Kumar Punetha

Zuhair Omar Malaibari

Mohammad Al-Abdullah

Ismail Abdulazeez

Anwar Ul-Hamid

Abdul-Rahman Al-Betar

Abdel-Naser M Kawde

Adnan Al Amer

Galal A Nasser

Talal K Al Shammari

Vyas M Mayank

According to one or more embodiments, non-agglomerated, nano-sized ZSM-22 zeolites may be synthesized by methods comprising operating a mechanical rotation drum unit at a first temperature of from 40&#xb0; C. to 60&#xb0; C. and a first speed of from 200 rpm to 1000 rpm for a first time period of from 1.3 hours to 2.7 hours; operating the mechanical rotation drum unit at a second speed of from 30 rpm to 90 rpm for a second time period of from 0.05 hours to 0.4 hours; heating the mechanical rotation drum unit at a ramping temperature of from 8&#xb0; C./minute to 12&#xb0; C./minute to a second temperature of from 115&#xb0; C. to 185&#xb0; C. at the second speed; operating the mechanical rotation drum unit at the second temperature and the second speed for a third time period of from 30 hours to 90 hours; and cooling the mechanical rotation drum unit at a fourth speed of 0 rpm.

Systems and methods for the synthesizing ZSM-22 zeolites

A method of making a &#x3b2;-SiAlON is described in involves mixing nanoparticles of AlN, AlO, and SiOwith particles of SiNand spark plasma sintering the mixture. The sintering may be at a temperature of 1450-1600&#xb0; C. or about 1500&#xb0; C. The particles of SiNmay be nanoparticles comprising amorphous SiN, or 25-55 &#x3bc;m diameter microparticles comprising &#x3b2;-SiN.

Method of forming a &#x3b2;SiAlON by spark plasma sintering

Methods and systems for production of consistently-sized BEA zeolite nano-crystals, the method including mixing an emulsion, the emulsion comprising a surfactant and an organic solvent; heating the emulsion; mixing a zeolite solution, the zeolite solution comprising a silicon-containing compound and an aluminum-containing compound; heating the zeolite solution; adding the emulsion to the zeolite solution drop-wise over time to create an zeolite emulsion solution mixture; heating the zeolite emulsion solution mixture; and precipitating the consistently-sized BEA zeolite nano-crystals.

Systems and methods for preparing nano-sized crystals of BEA zeolite

Methods and systems for production of consistently-sized BEA zeolite nano-crystals incorporating at least one metal oxide, the method including removing an organic template from a BEA zeolite comprising an organic template via calcination; desilicating the BEA zeolite following the step of removing the organic template; incorporating at least one metal oxide into the structure of the BEA zeolite after the step of desilicating; protonating the BEA zeolite after the step of incorporating the at least one metal oxide; and calcining the BEA zeolite after the step of protonating to form a modified BEA zeolite product.

Systems and methods for preparing nano-sized crystals of BEA zeolite with metal oxide for hydrocarbon conversions

A method of making a chabazite zeolite is disclosed. The method can include obtaining an aqueous gel comprising silicon dioxide, aluminum oxide, potassium oxide, and a nucleating agent, and hydrothermally treating the aqueous gel to obtain the chabazite zeolite.

SDA-free synthesis of chabazite (CHA) zeolite and uses thereof

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

Systems and methods for production of consistently-sized ZSM-22 zeolite catalyst crystals, a method including preparing an aluminate solution; preparing a silica solution; mixing the aluminate solution and the silica solution to form a zeolite-forming solution; heating the zeolite solution with microwave irradiation in a first, a second, a third, and a fourth distinct isothermal stage to produce the consistently-sized ZSM-22 zeolite catalyst crystals within a pre-selected crystal size range using a non-ionic surfactant.

Systems and methods for synthesis of ZSM-22 zeolite

Electrodes comprising conducting graphite, paraffin oil pasting liquid, and a rare earth metal impregnated zeolite, such as lanthanum or cerium impregnated mordenite electrodes. Methods and voltammetric applications, such as square wave anodic stripping voltammetry, of these rare earth metal impregnated zeolite modified electrodes for the detection and quantification of heavy metal ions such as Pb(II) and Cd(II) in aqueous solutions.

Rare earth metal incorporated zeolite modified electrodes for detection and quantification of heavy metal ions in aqueous solution

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.

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Dhahran, Saudi Arabia

Oki Muraza