Patents by Inventor Mohammad F. Aljishi
Mohammad F. Aljishi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250145479Abstract: A method of making zeolite-Y particles may include dissolving a silica source material into a first solvent to form a first solution and dissolving an alumina source material into a second solvent to form a second solution. The method may also include combining the first solution with the second solution to form a combined mixture. The combined mixture may include a templating agent. The method may include aging the combined mixture for a time period of from 10 hours to 30 hours to form a zeolite precursor solution and heating the zeolite precursor solution at a temperature of from 50° C. to 70° C. to form an intermediate mixture. The method may include heating the intermediate mixture at a temperature of from 80° C. to 120° C. to form the zeolite-Y particles.Type: ApplicationFiled: November 2, 2023Publication date: May 8, 2025Applicant: Saudi Arabian Oil CompanyInventors: Faisal Alotaibi, Lianhui Ding, Mohammad F. Aljishi
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Publication number: 20250115485Abstract: A method for making zeolite-Y particles may include forming an initial zeolite precursor solution including an alumina source material and a silica source material in a solvent, and subjecting the initial zeolite precursor solution to a first heating process to form zeolite-Y particles in a residual liquid solution, and separating the zeolite-Y particles from the residual liquid solution. The residual liquid solution may include some remaining non-crystalized silica source material, and the residual liquid solution may have a different alumina to silica molar ratio than the initial zeolite precursor. The method may further include forming a recycled zeolite precursor solution that may include at least a portion of the residual liquid solution and one or both of additional alumina source material or additional silica source material, such that the recycled zeolite precursor solution has an alumina to silica molar ratio within 10% of the alumina to silica ratio of the initial zeolite precursor solution.Type: ApplicationFiled: October 4, 2023Publication date: April 10, 2025Applicant: Saudi Arabian Oil CompanyInventors: Lianhui Ding, Faisal Alotaibi, Mohammad F. Aljishi
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Patent number: 12264130Abstract: A method for upgrading a naphtha feed includes passing the naphtha feed to an adsorption unit to produce at least a paraffin stream and an isoparaffin stream, wherein the isoparaffin stream comprises isoparaffins and aromatics. Passing the isoparaffin stream to an isoparaffin aromatization catalytic unit that contacts the isoparaffin stream with at least one aromatization catalyst produces aromatics from the isoparaffins thereby yielding an aromatization effluent. The at least one aromatization catalyst may comprise ZSM-5 zeolite. Benzene, toluene, and/or xylene (BTX) may be separated from the aromatization effluent by separating the aromatics effluent into a gas stream and a liquid stream in a gas/liquid separator, wherein the liquid stream contains BTX. Passing the liquid stream to a BTX-separation unit may produce a BTX stream and a recycle stream, wherein the BTX stream contains benzene, toluene, and/or xylene.Type: GrantFiled: May 26, 2023Date of Patent: April 1, 2025Assignee: Saudi Arabian Oil CompanyInventors: Emad Naji Al-Shafei, Lianhui Ding, Guanghui Zhu, Mohammed Z. Albahar, Mohammad F. Aljishi, Mohammed A. Alkhunaizi
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Publication number: 20240391853Abstract: A method for upgrading a naphtha feed includes passing the naphtha feed to an adsorption unit to produce at least a paraffin stream and an isoparaffin stream, wherein the isoparaffin stream comprises isoparaffins and aromatics. Passing the isoparaffin stream to an isoparaffin aromatization catalytic unit that contacts the isoparaffin stream with at least one aromatization catalyst produces aromatics from the isoparaffins thereby yielding an aromatization effluent. The at least one aromatization catalyst may comprise ZSM-5 zeolite. Benzene, toluene, and/or xylene (BTX) may be separated from the aromatization effluent by separating the aromatics effluent into a gas stream and a liquid stream in a gas/liquid separator, wherein the liquid stream contains BTX. Passing the liquid stream to a BTX-separation unit may produce a BTX stream and a recycle stream, wherein the BTX stream contains benzene, toluene, and/or xylene.Type: ApplicationFiled: May 26, 2023Publication date: November 28, 2024Applicant: Saudi Arabian Oil CompanyInventors: Emad Naji Al-Shafei, Lianhui Ding, Guanghui Zhu, Mohammed Z. Albahar, Mohammad F. Aljishi, Mohammed A. Alkhunaizi
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Publication number: 20240368480Abstract: A method for processing hydrocarbons and carbon dioxide may include combining a hydrocarbon mixture with carbon dioxide to produce a reactant mixture, which may include at least 95 mol. % of the combination of the hydrocarbon mixture and the carbon dioxide. The molar ratio of carbon dioxide to the hydrocarbon mixture in the reactant mixture may be from 0.01 to 100. The hydrocarbon mixture may include from 30 mol. % to 90 mol. % of propane, 5 mol. % to 50 mol. % of n-butane, and 5 mol. % to 50 mol. % of iso-butane. The method may also include contacting the reactant mixture with a catalyst in a reactor to produce a product mixture and passing the product mixture out of the reactor. The product mixture may include from 5 mol. % to 50 mol. % of one or more olefins, 1 mol. % to 25 mol. % of hydrogen gas, and 1 mol. % to 25 mol. % of carbon monoxide.Type: ApplicationFiled: May 3, 2023Publication date: November 7, 2024Applicant: Saudi Arabian Oil CompanyInventors: Emad Naji Al-Shafei, Ammar H. Alahmed, Mohammed Z. Al-Bahar, Mohammad F. Aljishi, Ahmed K. Asseel
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Patent number: 11248174Abstract: Embodiments of the disclosure produce a method and system for deasphalting a hydrocarbon feed. The hydrocarbon feed and a first solvent is combined using a Taylor-Couette mixer to form a mixed stream. The mixed stream and a second solvent are introduced to an extractor to produce a first deasphalted oil stream and a pitch stream. The first deasphalted oil stream is introduced to a solvent recovery unit to recover the first solvent and the second solvent via a recovered solvent stream and to produce a second deasphalted oil stream.Type: GrantFiled: December 27, 2019Date of Patent: February 15, 2022Assignee: SAUDI ARABIAN OIL COMPANYInventors: Mohammad F. Aljishi, Ki-Hyouk Choi
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Publication number: 20210198582Abstract: Embodiments of the disclosure produce a method and system for deasphalting a hydrocarbon feed. The hydrocarbon feed and a first solvent is combined using a Taylor-Couette mixer to form a mixed stream. The mixed stream and a second solvent are introduced to an extractor to produce a first deasphalted oil stream and a pitch stream. The first deasphalted oil stream is introduced to a solvent recovery unit to recover the first solvent and the second solvent via a recovered solvent stream and to produce a second deasphalted oil stream.Type: ApplicationFiled: December 27, 2019Publication date: July 1, 2021Applicant: SAUDI ARABIAN OIL COMPANYInventors: Mohammad F. ALJISHI, Ki-Hyouk CHOI
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Patent number: 9951283Abstract: A petroleum feedstock upgrading method is provided. The method includes supplying a mixed stream that includes hydrocarbon feedstock and water to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in the absence of catalyst for a residence time sufficient to convert the mixed stream into a modified stream having an increased concentration of lighter hydrocarbons and/or concentration of sulfur containing compounds. The modified stream is then supplied to an adsorptive reaction stage charged with a solid adsorbent operable to remove at least a portion of the sulfur present to produce a trimmed stream. The trimmed stream is then separated into a gas and a liquid streams, and the liquid stream is separated into a water stream and an upgraded hydrocarbon product stream.Type: GrantFiled: July 26, 2013Date of Patent: April 24, 2018Assignee: SAUDI ARABIAN OIL COMPANYInventors: Ki-Hyouk Choi, Mohammad F. Aljishi
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Patent number: 9145523Abstract: A hydrocarbon feedstock upgrading method is provided. The method includes supplying the hydrocarbon feedstock, water and a pre-heated hydrogen donating composition to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in the absence of catalyst for a residence time sufficient to convert the mixed stream into a modified stream. The hydrogen donating composition is pre-heated and maintained at a temperature of greater than about 50° C. for a period of at least about 10 minutes. The modified stream includes upgraded hydrocarbons relative to the hydrocarbon feedstock. The modified stream is then separated into a gas stream and a liquid stream and the liquid stream is separated into a water stream and an upgraded hydrocarbon product stream.Type: GrantFiled: April 16, 2015Date of Patent: September 29, 2015Assignee: SAUDI ARABIAN OIL COMPANYInventors: Ki-Hyouk Choi, Ashok K. Punetha, Mohammed R. Al-Dossary, Mohammad F. Aljishi
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Publication number: 20150218465Abstract: A hydrocarbon feedstock upgrading method is provided. The method includes supplying the hydrocarbon feedstock, water and a pre-heated hydrogen donating composition to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in the absence of catalyst for a residence time sufficient to convert the mixed stream into a modified stream. The hydrogen donating composition is pre-heated and maintained at a temperature of greater than about 50° C. for a period of at least about 10 minutes. The modified stream includes upgraded hydrocarbons relative to the hydrocarbon feedstock. The modified stream is then separated into a gas stream and a liquid stream and the liquid stream is separated into a water stream and an upgraded hydrocarbon product stream.Type: ApplicationFiled: April 16, 2015Publication date: August 6, 2015Inventors: Ki-Hyouk Choi, Ashok K. Punetha, Mohammed R. AI-Dossary, Mohammad F. Aljishi
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Patent number: 9039889Abstract: A hydrocarbon feedstock upgrading method is provided. The method includes supplying the hydrocarbon feedstock, water and a pre-heated hydrogen donating composition to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in the absence of catalyst for a residence time sufficient to convert the mixed stream into a modified stream. The hydrogen donating composition is pre-heated and maintained at a temperature of greater than about 50° C. for a period of at least about 10 minutes. The modified stream includes upgraded hydrocarbons relative to the hydrocarbon feedstock. The modified stream is then separated into a gas stream and a liquid stream and the liquid stream is separated into a water stream and an upgraded hydrocarbon product stream.Type: GrantFiled: September 14, 2010Date of Patent: May 26, 2015Assignee: SAUDI ARABIAN OIL COMPANYInventors: Ki-Hyouk Choi, Ashok K. Punetha, Mohammed R. Al-Dossary, Mohammad F. Aljishi
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Publication number: 20130313162Abstract: A petroleum feedstock upgrading method is provided. The method includes supplying a mixed stream that includes hydrocarbon feedstock and water to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in the absence of catalyst for a residence time sufficient to convert the mixed stream into a modified stream having an increased concentration of lighter hydrocarbons and/or concentration of sulfur containing compounds. The modified stream is then supplied to an adsorptive reaction stage charged with a solid adsorbent operable to remove at least a portion of the sulfur present to produce a trimmed stream. The trimmed stream is then separated into a gas and a liquid streams, and the liquid stream is separated into a water stream and an upgraded hydrocarbon product stream.Type: ApplicationFiled: July 26, 2013Publication date: November 28, 2013Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Mohammad F. Aljishi
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Patent number: 8535518Abstract: A petroleum feedstock upgrading method is provided. The method includes supplying a mixed stream that includes hydrocarbon feedstock and water to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in the absence of catalyst for a residence time sufficient to convert the mixed stream into a modified stream having an increased concentration of lighter hydrocarbons and/or concentration of sulfur containing compounds. The modified stream is then supplied to an adsorptive reaction stage charged with a solid adsorbent operable to remove at least a portion of the sulfur present to produce a trimmed stream. The trimmed stream is then separated into a gas and a liquid streams, and the liquid stream is separated into a water stream and an upgraded hydrocarbon product stream.Type: GrantFiled: January 19, 2011Date of Patent: September 17, 2013Assignee: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Mohammad F. Aljishi
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Publication number: 20120181217Abstract: A petroleum feedstock upgrading method is provided. The method includes supplying a mixed stream that includes hydrocarbon feedstock and water to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in the absence of catalyst for a residence time sufficient to convert the mixed stream into a modified stream having an increased concentration of lighter hydrocarbons and/or concentration of sulfur containing compounds. The modified stream is then supplied to an adsorptive reaction stage charged with a solid adsorbent operable to remove at least a portion of the sulfur present to produce a trimmed. The trimmed stream is then separated into a gas and a liquid streams, and the liquid stream is separated into a water stream and an upgraded hydrocarbon product stream.Type: ApplicationFiled: January 19, 2011Publication date: July 19, 2012Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Mohammad F. Aljishi
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Publication number: 20120061291Abstract: A hydrocarbon feedstock upgrading method is provided. The method includes supplying the hydrocarbon feedstock, water and a pre-heated hydrogen donating composition to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in the absence of catalyst for a residence time sufficient to convert the mixed stream into a modified stream. The hydrogen donating composition is pre-heated and maintained at a temperature of greater than about 50° C. for a period of at least about 10 minutes. The modified stream includes upgraded hydrocarbons relative to the hydrocarbon feedstock. The modified stream is then separated into a gas stream and a liquid stream and the liquid stream is separated into a water stream and an upgraded hydrocarbon product stream.Type: ApplicationFiled: September 14, 2010Publication date: March 15, 2012Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Ashok K. Punetha, Mohammed R. Al-Dossary, Mohammad F. Aljishi