Patents by Inventor Noor A. Sulais
Noor A. Sulais 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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Patent number: 11732202Abstract: A method for producing aromatic compounds from pyrolysis oil comprises: upgrading the pyrolysis oil to pyrolysis gasoline in a multi-stage reactor comprising a slurry-phase reactor and a fixed-bed reactor, wherein the slurry-phase reactor comprises a mixed metal oxide catalyst, and the fixed-bed reactor comprises a mesoporous zeolite-supported metal catalyst; aromatizing the pyrolysis gasoline in an aromatization unit; hydrodealkylating and transalkylating a product from the aromatization unit in a hydrodealkylation-transalkylation unit, thereby producing an aromatic stream; and processing the aromatic stream in an aromatics recovery complex to produce the aromatic compounds comprising benzene, toluene, and xylenes (BTX).Type: GrantFiled: March 24, 2022Date of Patent: August 22, 2023Assignee: Saudi Arabia Oil CompanyInventors: Miao Sun, Zhonglin Zhang, Noor Al-Mana, Hattan T. Janbi, Sohel K. Shaikh, Eman Z. Albaher, Noor A. Sulais
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Patent number: 11242299Abstract: Embodiments of methods of synthesizing a metathesis catalyst system, which include impregnating tungsten oxide on silica support in the presence of a precursor to produce a base catalyst; calcining the base catalyst; impregnating a metal oxide co-catalyst comprising a metal oxide onto the surface of the base catalyst to produce a doped catalyst; and calcining the doped catalyst to produce a metathesis catalyst system. Further embodiments of processes for the production of propylene, which include contacting a hydrocarbon feedstock comprising a mixture of 1-butene and 2-butene with embodiments of the metathesis catalyst system to produce, via metathesis conversion, a product stream comprising propylene.Type: GrantFiled: October 10, 2018Date of Patent: February 8, 2022Assignees: Saudi Arabian Oil Company, Aramco Services CompanyInventors: Munir D. Khokhar, Mohammed R. Alalouni, Noor A. Sulais, Brian Hanna, Sohel K. Shaikh
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Patent number: 11242300Abstract: Embodiments of methods of synthesizing a metathesis catalyst system, which include impregnating tungsten oxide on silica support in the presence of a precursor to produce a base catalyst; calcining the base catalyst; dispersing a solid metal-based co-catalyst onto the surface of the base catalyst to produce a doped catalyst; and calcining the doped catalyst to produce a metathesis catalyst system. Further embodiments of processes for the production of propylene, which include contacting a hydrocarbon feedstock comprising a mixture of 1-butene and 2-butene with embodiments of the metathesis catalyst system to produce, via metathesis conversion, a product stream comprising propylene.Type: GrantFiled: July 25, 2019Date of Patent: February 8, 2022Assignee: Saudi Arabian Oil CompanyInventors: Munir D. Khokhar, Mohammed R. Alalouni, Noor A. Sulais, Brian Hanna, Sohel K. Shaikh
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Patent number: 11242297Abstract: Embodiments of processes and multiple-stage catalyst systems for producing propylene comprising introducing a hydrocarbon stream comprising 2-butene to an isomerization catalyst zone to isomerize the 2-butene to 1-butene, passing the 2-butene and 1-butene to a metathesis catalyst zone to cross-metathesize the 2-butene and 1-butene into a metathesis product stream comprising propylene and C4-C6 olefins, and cracking the metathesis product stream in a catalyst cracking zone to produce propylene. The isomerization catalyst zone comprises a silica-alumina catalyst with a ratio by weight of alumina to silica from 1:99 to 20:80. The metathesis catalyst comprises a mesoporous silica catalyst support impregnated with metal oxide. The catalyst cracking zone comprises a mordenite framework inverted (MFI) structured silica catalyst.Type: GrantFiled: December 12, 2019Date of Patent: February 8, 2022Assignee: Saudi Arabian Oil CompanyInventors: Faisal H. Alshafei, Munir D. Khokhar, Noor A. Sulais, Mohammed R. Alalouni, Sohel K. Shaikh
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Patent number: 10961171Abstract: Embodiments of methods of synthesizing a metathesis catalyst system, which include impregnating tungsten oxide on silica support in the presence of a precursor to produce a base catalyst; calcining the base catalyst; dispersing a solid metal-based co-catalyst onto the surface of the base catalyst to produce a doped catalyst; and calcining the doped catalyst to produce a metathesis catalyst system. Further embodiments of processes for the production of propylene, which include contacting a hydrocarbon feedstock comprising a mixture of 1-butene and 2-butene with embodiments of the metathesis catalyst system to produce, via metathesis conversion, a product stream comprising propylene.Type: GrantFiled: October 10, 2018Date of Patent: March 30, 2021Assignee: Saudi Arabian Oil CompanyInventors: Munir D. Khokhar, Mohammed R. Alalouni, Noor A. Sulais, Brian Hanna, Sohel K. Shaikh
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Patent number: 10919822Abstract: Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.Type: GrantFiled: April 22, 2019Date of Patent: February 16, 2021Assignee: Saudi Arabian Oil CompanyInventors: Munir D. Khokhar, Faisal H. Alshafei, Noor A. Sulais, Sohel K. Shaikh, Raed H. Abudawoud
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Publication number: 20200131099Abstract: Embodiments of processes and multiple-stage catalyst systems for producing propylene comprising introducing a hydrocarbon stream comprising 2-butene to an isomerization catalyst zone to isomerize the 2-butene to 1-butene, passing the 2-butene and 1-butene to a metathesis catalyst zone to cross-metathesize the 2-butene and 1-butene into a metathesis product stream comprising propylene and C4-C6 olefins, and cracking the metathesis product stream in a catalyst cracking zone to produce propylene. The isomerization catalyst zone comprises a silica-alumina catalyst with a ratio by weight of alumina to silica from 1:99 to 20:80. The metathesis catalyst comprises a mesoporous silica catalyst support impregnated with metal oxide. The catalyst cracking zone comprises a mordenite framework inverted (MFI) structured silica catalyst.Type: ApplicationFiled: December 12, 2019Publication date: April 30, 2020Applicant: Saudi Arabian Oil CompanyInventors: Faisal H. Alshafei, Munir D. Khokhar, Noor A. Sulais, Mohammed R. Alalouni, Sohel K. Shaikh
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Publication number: 20200115298Abstract: Embodiments of methods of synthesizing a metathesis catalyst system, which include impregnating tungsten oxide on silica support in the presence of a precursor to produce a base catalyst; calcining the base catalyst; dispersing a solid metal-based co-catalyst onto the surface of the base catalyst to produce a doped catalyst; and calcining the doped catalyst to produce a metathesis catalyst system. Further embodiments of processes for the production of propylene, which include contacting a hydrocarbon feedstock comprising a mixture of 1-butene and 2-butene with embodiments of the metathesis catalyst system to produce, via metathesis conversion, a product stream comprising propylene.Type: ApplicationFiled: October 10, 2018Publication date: April 16, 2020Applicant: Saudi Arabian Oil CompanyInventors: Munir D. Khokhar, Mohammed R. Alalouni, Noor A. Sulais, Brian Hanna, Sohel K. Shaikh
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Publication number: 20200115299Abstract: Embodiments of methods of synthesizing a metathesis catalyst system, which include impregnating tungsten oxide on silica support in the presence of a precursor to produce a base catalyst; calcining the base catalyst; impregnating a metal oxide co-catalyst comprising a metal oxide onto the surface of the base catalyst to produce a doped catalyst; and calcining the doped catalyst to produce a metathesis catalyst system. Further embodiments of processes for the production of propylene, which include contacting a hydrocarbon feedstock comprising a mixture of 1-butene and 2-butene with embodiments of the metathesis catalyst system to produce, via metathesis conversion, a product stream comprising propylene.Type: ApplicationFiled: October 10, 2018Publication date: April 16, 2020Applicants: Saudi Arabian Oil Company, Aramco Services CompanyInventors: Munir D. Khokhar, Mohammed R. Alalouni, Noor A. Sulais, Brian Hanna, Sohel K. Shaikh
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Publication number: 20200115300Abstract: Embodiments of methods of synthesizing a metathesis catalyst system, which include impregnating tungsten oxide on silica support in the presence of a precursor to produce a base catalyst; calcining the base catalyst; dispersing a solid metal-based co-catalyst onto the surface of the base catalyst to produce a doped catalyst; and calcining the doped catalyst to produce a metathesis catalyst system. Further embodiments of processes for the production of propylene, which include contacting a hydrocarbon feedstock comprising a mixture of 1-butene and 2-butene with embodiments of the metathesis catalyst system to produce, via metathesis conversion, a product stream comprising propylene.Type: ApplicationFiled: July 25, 2019Publication date: April 16, 2020Applicants: Saudi Arabian Oil Company, Aramco Services CompanyInventors: Munir D. Khokhar, Mohammed R. Alalouni, Noor A. Sulais, Brian Hanna, Sohel K. Shaikh
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Patent number: 10550048Abstract: Embodiments of processes and multiple-stage catalyst systems for producing propylene comprising introducing a hydrocarbon stream comprising 2-butene to an isomerization catalyst zone to isomerize the 2-butene to 1-butene, passing the 2-butene and 1-butene to a metathesis catalyst zone to cross-metathesize the 2-butene and 1-butene into a metathesis product stream comprising propylene and C4-C6 olefins, and cracking the metathesis product stream in a catalyst cracking zone to produce propylene. The isomerization catalyst zone comprises a silica-alumina catalyst with a ratio by weight of alumina to silica from 1:99 to 20:80. The metathesis catalyst comprises a mesoporous silica catalyst support impregnated with metal oxide. The catalyst cracking zone comprises a mordenite framework inverted (MFI) structured silica catalyst.Type: GrantFiled: January 17, 2018Date of Patent: February 4, 2020Assignee: Saudi Arabian Oil CompanyInventors: Faisal H. Alshafei, Munir D. Khokhar, Noor A. Sulais, Mohammed R. Alalouni, Sohel K. Shaikh
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Publication number: 20190241488Abstract: Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.Type: ApplicationFiled: April 22, 2019Publication date: August 8, 2019Applicant: Saudi Arabian Oil CompanyInventors: Munir D. Khokhar, Faisal H. Alshafei, Noor A. Sulais, Sohel K. Shaikh, Raed H. Abudawoud
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Patent number: 10329225Abstract: Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.Type: GrantFiled: January 10, 2018Date of Patent: June 25, 2019Assignee: Saudi Arabian Oil CompanyInventors: Munir D. Khokhar, Faisal H. Alshafei, Noor A. Sulais, Sohel K. Shaikh, Raed H. Abudawoud
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Publication number: 20180208527Abstract: Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.Type: ApplicationFiled: January 10, 2018Publication date: July 26, 2018Applicant: Saudi Arabian Oil CompanyInventors: Munir D. Khokhar, Faisal H. Alshafei, Noor A. Sulais, Sohel K. Shaikh, Raed H. Abudawoud
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Publication number: 20180208524Abstract: Embodiments of processes and multiple-stage catalyst systems for producing propylene comprising introducing a hydrocarbon stream comprising 2-butene to an isomerization catalyst zone to isomerize the 2-butene to 1-butene, passing the 2-butene and 1-butene to a metathesis catalyst zone to cross-metathesize the 2-butene and 1-butene into a metathesis product stream comprising propylene and C4-C6 olefins, and cracking the metathesis product stream in a catalyst cracking zone to produce propylene. The isomerization catalyst zone comprises a silica-alumina catalyst with a ratio by weight of alumina to silica from 1:99 to 20:80. The metathesis catalyst comprises a mesoporous silica catalyst support impregnated with metal oxide. The catalyst cracking zone comprises a mordenite framework inverted (MFI) structured silica catalyst.Type: ApplicationFiled: January 17, 2018Publication date: July 26, 2018Applicant: Saudi Arabian Oil CompanyInventors: Faisal H. Alshafei, Munir D. Khokhar, Noor A. Sulais, Mohammed R. Alalouni, Sohel K. Shaikh