Saudi Arabian Oil Company

Faisal Alotaibi

Lianhui Ding

Sameer Ali Al-Ghamdi

Khalid Otaibi

A method of making a mesoporous zeolite may include combining an initial zeolite with cetyltrimethylammonium bromide to form an initial zeolite mixture. The method may also include adding ammonium hexafluorosilicate and ammonium hydroxide to the initial zeolite mixture to form a treated zeolite mixture. The method may also include heating the treated zeolite mixture to form the mesoporous zeolite.

Mesoporous zeolites and methods of making the same

This disclosure generally relates to methods for producing catalyst compositions, which may include forming a precursor solution comprising a silicon-containing material, an aluminum-containing material, and a quaternary amine, hydrothermally treating the precursor solution at a first temperature to form an intermediate mixture, hydrothermally treating the intermediate mixture at a second temperature to form beta zeolite, wherein the first temperature is less than the second temperature by at least 200° C., forming an extrudable mixture comprising the beta zeolite, alumina, a metal precursor, and a binder, extruding the extrudable mixture to form extrudates, and calcining the extrudates to form the catalyst composition.

Methods of producing catalyst compositions, and methods of cracking hydrocarbon feed streams using such catalyst compositions

Methods for synthesizing a mesoporous nano-sized ultra-stable Y zeolite include combining a microporous Y zeolite having a SiO/Al2Omolar ratio of less than 5.2 with water to form a microporous Y zeolite slurry and heating the microporous Y zeolite slurry to 30° C. to 100° C. to form a heated microporous Y zeolite slurry. Further the method includes adding a 0.1M to 2.0M ammonium hexafluorosilicate solution and a 0.1M to 2.0M ammonium hydroxide solution in a drop-wise manner, either sequentially or simultaneously, to the heated microporous Y zeolite slurry to form a treated zeolite solution and holding the treated zeolite solution at 50° C. to 100° C. Finally the method includes filtering and washing the dealuminated solution with water to form an ultra-stable Y zeolite precursor, drying the ultra-stable Y zeolite precursor, and calcining the dried zeolite precursor to form the nano-sized ultra-stable Y zeolite.

Method for synthesizing mesoporous nano-sized ultra-stable Y zeolite

Methods for synthesizing a mesoporous nano-sized zeolite beta are described. The method may include mixing an aqueous base solution with hexadecyltrimethylammonium bromide (CTAB) to form a first solution; adding nano-sized zeolite particles having a particle size of less than or equal to 100 nm to the first solution to form a second solution. The nano-sized zeolite particles include a microporous framework with a plurality of micropores having diameters of less than or equal to 2 nm and a BEA framework type. The method may further include transferring the second solution to an autoclave operated at 25° C. to 200° C. for 3 to 24 hours to form a colloid; drying the colloid at 100° C. to 200° C. for 8 to 36 hours without washing the colloid to form a zeolite precursor; and calcining the zeolite precursor at 250° C. to 600° C. for 1 to 8 hours to form the mesoporous nano-sized zeolite beta.

Method for synthesizing mesoporous nano-sized zeolite beta

Methods for synthesizing a mesoporous nano-sized ultra-stable Y zeolite include adding sodium aluminate and colloidal silica to an aqueous NaOH solution and mixing to form a hydrogel having a molar ratio composition of 8 to 12 NaO:AlO:14 SiO:200 to 400 HO. The method further includes heating the hydrogel to an autoclave to form a zeolite precursor which is filtered and washed to form a nano-sized Y zeolite. Further the method includes combining the nano-sized Y zeolite with water to form a nano-sized Y zeolite slurry mixture and then adding a 0.1 to 2.0 M aqueous solution of ammonium hexafluorosilicate to form a dealuminated solution. Finally the method includes filtering and washing the dealuminated solution with water to form an ultra-stable Y zeolite precursor, drying the ultra-stable Y zeolite precursor, and calcining the dried zeolite precursor to form the nano-sized ultra-stable Y zeolite.

A system for upgrading heavy hydrocarbon feeds, such as crude oil, include a hydrotreating unit, a hydrotreated effluent separation system, a solvent-assisted adsorption system, and a hydrocracking unit. Processes for upgrading heavy hydrocarbon feeds include hydrotreating the hydrocarbon feed to produce a hydrotreated effluent that includes asphaltenes, separating the hydrotreated effluent into a lesser boiling hydrotreated effluent and a greater boiling hydrotreated effluent comprising the asphaltenes, combining the greater boiling hydrotreated effluent with a light paraffin solvent to produce a combined stream, adsorbing the asphaltenes from the combined stream to produce an adsorption effluent, and hydrocracking the lesser boiling hydrotreated effluent and at least a portion of the adsorption effluent to produce a hydrocracked effluent with hydrocarbons boiling less than 180° C. The systems and processes increase the hydrocarbon conversion and yield of hydrocarbons boiling less than 180° C.

Systems and processes for upgrading crude oil through hydrocracking and solvent assisted on-line solid adsorption of asphaltenes

A system for upgrading heavy hydrocarbon feeds, such as crude oil, include a hydrotreating unit, a hydrotreated effluent separation system, a solvent-assisted adsorption system, and a hydrocracking unit. Processes for upgrading heavy hydrocarbon feeds include hydrotreating the hydrocarbon feed to produce a hydrotreated effluent that includes asphaltenes, separating the hydrotreated effluent into a lesser boiling hydrotreated effluent and a greater boiling hydrotreated effluent comprising the asphaltenes, combining the greater boiling hydrotreated effluent with a light paraffin solvent to produce a combined stream, adsorbing the asphaltenes from the combined stream to produce an adsorption effluent, and hydrocracking the lesser boiling hydrotreated effluent and at least a portion of the adsorption effluent to produce a hydrocracked effluent with hydrocarbons boiling less than 180&#xb0; C. The systems and processes increase the hydrocarbon conversion and yield of hydrocarbons boiling less than 180&#xb0; C.

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Dhahran, Saudi Arabia

Faisal Alotaibi