Patents by Inventor Zhonglin Zhang
Zhonglin Zhang 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: 11820950Abstract: An integrated process and associated system for conversion of crude oil to value added petrochemicals. The process includes separating crude oil into light and heavy crude fractions and processing the heavy fraction in a solvent deasphalting unit and a delayed coker unit, and then providing the light fraction and selected effluents of the solvent deasphalting unit and the delayed coker unit to a hydrotreater. The process further includes separating the effluent of the hydrotreater to generate a C1 fraction passed to a methane cracker, a C2-C4 fraction passed to a steam cracker, a hydrotreated light fraction passed to an aromatization unit, and a hydrotreated heavy fraction passed to a steam enhanced catalytic cracking unit. The process further includes separating effluents of the methane cracker, the steam cracker, the aromatization unit, and the steam enhanced catalytic cracking unit into product streams including a BTX stream and a light olefin stream.Type: GrantFiled: June 16, 2022Date of Patent: November 21, 2023Assignee: Saudi Arabian Oil CompanyInventors: Aaron Chi Akah, Essa Alnaimi, Qi Xu, Musaed Salem Al-Ghrami, Zhonglin Zhang
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Publication number: 20230365876Abstract: Processes and systems for forming olefins and aromatics from naphtha. The process includes introducing a naphtha feed stream to an adsorption unit, the adsorption unit comprising an adsorbent. N-paraffins are adsorbed from the naphtha feed stream to the adsorbent, and an iso-paraffin stream is removed from the adsorption unit. A desorbent stream is introduced into the adsorption unit, the desorbent stream comprising a desorbent, and the n-paraffins are removed from the adsorbent with the desorbent, thereby forming desorbed bottoms. The n-paraffins are collected from the desorbed bottoms, thereby forming an n-paraffin stream. The the n-paraffin stream is introduced to a steam cracking unit, and olefins and aromatics are formed from the n-paraffin stream in the steam cracking unit.Type: ApplicationFiled: May 16, 2022Publication date: November 16, 2023Applicant: Saudi Arabian Oil CompanyInventors: Lianhui Ding, Sameer A. Al- Ghamdi, Zhonglin Zhang
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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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Publication number: 20230242824Abstract: An integrated hydrotreating and hydrocracking process includes contacting a hydrocarbon oil stream with a hydrogen stream and a hydrotreating catalyst in a moving-bed hydrotreating reactor, thereby producing a hydrocarbon product stream and a spent hydrotreating catalyst; contacting the hydrocarbon product stream with a second hydrogen stream and a hydrocracking catalyst in a hydrocracking reactor, thereby producing a hydrocracked hydrocarbon product stream; processing the spent hydrotreating catalyst to produce regenerated hydrotreating catalyst; and recycling the regenerated hydrotreating catalyst to the moving-bed hydrotreating reactor.Type: ApplicationFiled: February 2, 2022Publication date: August 3, 2023Applicant: Saudi Arabian Oil CompanyInventors: Lianhui Ding, Zhonglin Zhang, Saad A. Al-Bogami, Sameer A. Al-Ghamdi
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Publication number: 20230212465Abstract: In accordance with one or more embodiments of the present disclosure, a method for producing aromatic compounds from pyrolysis gasoline comprising C5-C6 non-aromatic hydrocarbons includes aromatizing the pyrolysis gasoline in an aromatization unit, thereby converting the C5-C6 non-aromatic hydrocarbons to a first stream comprising benzene-toluene-xylenes (BTX); hydrotreating the first stream comprising BTX in a selective hydrotreatment unit, thereby producing a de-olefinated stream comprising BTX hydrodealkylating and transalkylating the de-olefinated stream comprising BTX in a hydrodealkylation-transalkylation unit, thereby producing a second stream comprising BTX, the second stream comprising BTX having a greater amount of benzene and xylenes than the first stream comprising BTX; and processing the second stream comprising BTX in an aromatics recovery complex, thereby producing the aromatic compounds from the pyrolysis gasoline, the aromatic compounds comprising benzene, toluene, and xylenes.Type: ApplicationFiled: February 28, 2023Publication date: July 6, 2023Applicant: Saudi Arabian Oil CompanyInventors: Noor Nasser Al-Mana, Zhonglin Zhang, Omer Refa Koseoglu, Sohel Shaikh
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Publication number: 20230212467Abstract: In accordance with one or more embodiments of the present disclosure, a method for producing aromatic compounds from pyrolysis gasoline includes splitting the pyrolysis gasoline into a stream comprising non-aromatic hydrocarbons and a stream comprising paraffinic hydrocarbons and aromatic hydrocarbons; aromatizing the stream comprising paraffinic hydrocarbons and aromatic hydrocarbons, thereby converting the stream comprising paraffinic hydrocarbons and aromatic hydrocarbons to a first stream comprising benzene-toluene-xylenes (BTX); hydrotreating the first stream comprising BTX in a selective hydrotreatment unit, thereby producing a de-olefinated stream comprising BTX; hydrodealkylating and transalkylating the de-olefinated stream comprising BTX in a hydrodealkylation-transalkylation unit, thereby producing a second stream comprising BTX, the second stream comprising BTX having a greater amount of benzene and xylenes than the first stream comprising BTX; and processing the second stream comprising BTX in anType: ApplicationFiled: January 3, 2022Publication date: July 6, 2023Applicant: Saudi Arabian Oil CompanyInventors: Noor Nasser Al-Mana, Zhonglin Zhang, Sameer Al-Ghamdi, Omer Refa Koseoglu, Sohel Shaikh
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Patent number: 11685870Abstract: A catalytic upgrading process includes introducing a feed comprising crude oil to a steam cracking unit, thereby producing pyrolysis fuel oil (PFO). The PFO is introduced to a first catalytic depolyaromatization reactor to remove polyaromatics from the feed, thereby producing polyaromatics adsorbed to the catalyst and depolyaromatized PFO. The depolyaromatized PFO is introduced to a hydrocracking unit. The resulting benzene-toluene-xylenes (BTX) and liquid petroleum gas (LPG) are separated, and the BTX is introduced to a BTX complex to produce refined BTX. The LPG can then be introduced to the steam cracking unit. After depolyaromatization, a wash solvent is introduced into the first catalytic depolyaromatization reactor to remove the polyaromatics, regenerate the catalyst, and produce a mixture comprising the wash solvent and the polyaromatics. The wash solvent is separated from the polyaromatics.Type: GrantFiled: March 1, 2022Date of Patent: June 27, 2023Assignee: Saudi Arabian Oil CompanyInventors: Miao Sun, Zhonglin Zhang, Sohel K. Shaikh, Omer Koseoglu
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Patent number: 11661356Abstract: A method and device for removing chloride ions in desulfurized wastewater by electrochemical coupling in which the device comprises: an electrolyte tank having a top and a bottom wherein the tank is used as a separator in a separation process and as an electrode regenerator in an electrode regeneration process; two electrodes comprising a hydrogen evolution electrocatalysis function electrode and an electrochemically switched ion exchange (ESIX) function electrode respectively, wherein the electrodes are connected with each other by a wire; two DC circuits having opposite electric field directions and used alternately in the separation process and the electrode regeneration process respectively; the bottom of the electrolyte tank is provided with a purified high-concentration chloride ion wastewater inlet and a flocculation product outlet; the top of the tank is provided with a dechlorination treatment water outlet and a hydrogen collecting port; and, in the electrode regeneration process, the electrolyte tanType: GrantFiled: April 13, 2020Date of Patent: May 30, 2023Inventors: Xiaogang Hao, Xiaoqiong Hao, Xiao Du, Zhonglin Zhang
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SYSTEMS AND PROCESSES INTEGRATING STEAM CRACKING WITH DUAL CATALYST METATHESIS FOR PRODUCING OLEFINS
Publication number: 20230151284Abstract: Processes for producing olefins include integration of steam cracking with a dual catalyst metathesis process. The processes include steam cracking a hydrocarbon feed to form a cracking reaction effluent containing butenes, separating the cracking reaction effluent to produce a cracking C4 effluent including normal butenes, isobutene, and 1,3-butadiene, subjecting the cracking C4 effluent to selective hydrogenation to convert 1,3-butadiene in the cracking C4 effluent to normal butenes, removing isobutene from a hydrogenation effluent to produce a metathesis feed containing normal butenes, and contacting the metathesis feed with a metathesis catalyst and a cracking catalyst directly downstream of the metathesis catalyst to produce a metathesis reaction effluent.Type: ApplicationFiled: January 3, 2023Publication date: May 18, 2023Applicant: Saudi Arabian Oil CompanyInventors: Sohel K. Shaikh, Raed H. Abudawoud, Zhonglin Zhang, Munir D. Khokhar, Furqan Aljumah -
Patent number: 11649409Abstract: In accordance with one or more embodiments of the present disclosure, a method for producing aromatic compounds from pyrolysis gasoline includes hydrotreating a stream comprising the pyrolysis gasoline, thereby producing a hydrotreated pyrolysis gasoline stream comprising paraffins; aromatizing the hydrotreated pyrolysis gasoline stream comprising paraffins, thereby producing a stream comprising benzene-toluene-xylenes (BTX); and processing the stream comprising BTX in an aromatics recovery complex, thereby producing the aromatic compounds from the pyrolysis gasoline.Type: GrantFiled: January 3, 2022Date of Patent: May 16, 2023Assignee: Saudi Arabian Oil CompanyInventors: Noor Nasser Al-Mana, Zhonglin Zhang, Omer Refa Koseoglu, Sohel Shaikh
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Patent number: 11629300Abstract: In accordance with one or more embodiments of the present disclosure, a method for producing aromatic compounds from pyrolysis gasoline comprising C5-C6 non-aromatic hydrocarbons includes aromatizing the pyrolysis gasoline in an aromatization unit, thereby converting the C5-C6 non-aromatic hydrocarbons to a first stream comprising benzene-toluene-xylenes (BTX); hydrotreating the first stream comprising BTX in a selective hydrotreatment unit, thereby producing a de-olefinated stream comprising BTX; hydrodealkylating and transalkylating the de-olefinated stream comprising BTX in a hydrodealkylation-transalkylation unit, thereby producing a second stream comprising BTX, the second stream comprising BTX having a greater amount of benzene and xylenes than the first stream comprising BTX; and processing the second stream comprising BTX in an aromatics recovery complex, thereby producing the aromatic compounds from the pyrolysis gasoline, the aromatic compounds comprising benzene, toluene, and xylenes.Type: GrantFiled: January 3, 2022Date of Patent: April 18, 2023Assignee: Saudi Arabian Oil CompanyInventors: Noor Nasser Al-Mana, Zhonglin Zhang, Omer Refa Koseoglu, Sohel Shaikh
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Publication number: 20230113878Abstract: Disclosed is a cell, including a housing, an electrode core pack, and a sampling assembly. The housing includes a cover plate arranged at an end of the cell. The electrode core pack is arranged in the housing. The sampling assembly includes a ceramic sealing member, a connection sheet, and a sampling member. The ceramic sealing member is fixed on the cover plate by the connection sheet. The sampling member is fixed on the ceramic sealing member. A first end of the sampling member is connected to the electrode core pack. A second end of the sampling member is provided to be electrically connected to a battery controller.Type: ApplicationFiled: February 2, 2021Publication date: April 13, 2023Inventors: Ping HE, Yongming GUO, Zhonglin ZHANG, Yanfei ZHOU, Yanchu LIU
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Patent number: 11618723Abstract: A method of producing p-xylene comprising the steps of separating the reformate feed in the reformate splitter to produce a benzene stream, a combined heavy stream, a xylene stream, and a toluene stream, converting the C9+ aromatic hydrocarbons in the presence of a dealkylation catalyst in the dealkylation reactor to produce a dealkylation effluent, separating the dealkylation effluent in the dealkylation splitter to produce a C9 stream and a C10+ stream, reacting the C9 stream, the toluene stream, the benzene stream, and the hydrogen stream in the presence of a transalkylation catalyst in the transalkylation reactor to produce a transalkylation effluent, separating the p-xylenes from the xylene stream in the p-xylene separation unit to produce a p-xylene product and a p-xylene depleted stream, converting the m-xylene and o-xylene in the p-xylene depleted stream in the isomerization unit to produce an isomerization effluent.Type: GrantFiled: January 6, 2021Date of Patent: April 4, 2023Assignee: Saudi Arabian Oil CompanyInventors: Qi Xu, Zhonglin Zhang, Raed Abudawoud
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Publication number: 20230102725Abstract: A battery pack includes a box body including a mounting space. A cell array is disposed in the mounting space and includes multiple battery cores arranged in a first direction, and the first direction is parallel to a thickness direction of the battery cores. An adjustment shim set includes at least one adjustment shim and is disposed in the mounting space on a first side of the cell array in the first direction, and a first wedge-shaped member is disposed in the mounting space on a second side of the cell array in the first direction or a first side of the at least one adjustment shim away from the cell array, to press the cell array and the adjustment shim set. The number of adjustment shims of the adjustment shim set is configured to generate a pressure on the cell array in the mounting space to reach a pre-tightening force.Type: ApplicationFiled: December 8, 2022Publication date: March 30, 2023Inventors: Yue ZHANG, Yanfei ZHOU, Zhonglin ZHANG, Xiaofeng GU
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Patent number: 11613717Abstract: A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a methyl tertiary butyl ether unit producing a first process stream; passing the first process stream through a selective hydrogenation unit producing a second process stream; passing the second process stream through an isomerization unit producing a third process stream; and passing the third process stream through a hydration unit producing the fuel additive and a recycle stream.Type: GrantFiled: July 27, 2018Date of Patent: March 28, 2023Assignees: SABIC GLOBAL TECHNOLOGIES B.V., SAUDI ARABIAN OIL COMPANYInventors: Guillermo Leal, Kareemuddin Mahaboob Shaik, Mohammed Bismillah Ansari, Hiren Shethna, Zhonglin Zhang
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Publication number: 20230093607Abstract: Processes for producing olefins include passing a hydrocarbon feed to a hydrocarbon cracking unit that cracks the hydrocarbon feed to produce a cracker effluent, passing the cracker effluent to a cracker effluent separation system that separates the cracker effluent to produce at least a cracking C4 effluent including 1-butene, 1,3-butadiene, and isobutene, passing the cracking C4 effluent to an SHIU that contacts the cracking C4 effluent with hydrogen in the presence of a selective hydrogenation catalyst to produce a hydrogenation effluent having a 2-butenes concentration greater than or equal to the sum of the concentrations of 1-butene and isobutene. The processes include passing the hydrogenation effluent to a metathesis unit that contacts the hydrogenation effluent with a metathesis catalyst and a cracking catalyst downstream of the metathesis catalyst to produce a metathesis reaction effluent comprising at least propene.Type: ApplicationFiled: August 17, 2021Publication date: March 23, 2023Applicant: Saudi Arabian Oil CompanyInventors: Furqan Aljumah, Sohel Shaikh, Zhonglin Zhang
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Publication number: 20230093135Abstract: A method for upgrading pyrolysis oil includes contacting a pyrolysis oil feed with hydrogen in the presence of a mixed metal oxide catalyst in a first slurry reactor, where: the pyrolysis oil feed comprises multi-ring aromatic compounds comprising greater than or equal to sixteen carbon atoms, and contacting the pyrolysis oil feed with hydrogen in the presence of the mixed metal oxide catalyst in the first slurry reactor to convert at least a portion of the multi-ring aromatic compounds in the pyrolysis oil feed to light aromatic compounds comprising di-aromatic compounds, tri-aromatic compounds, or both, passing an intermediate stream comprising the light aromatic compounds to a second slurry reactor downstream of the first slurry reactor; and contacting the intermediate stream with hydrogen in the presence of a mesoporous zeolite supported metal catalyst in a second slurry reactor.Type: ApplicationFiled: December 2, 2022Publication date: March 23, 2023Applicant: Saudi Arabian Oil CompanyInventors: Miao Sun, Sohel K Shaikh, Ibrahim A. Abba, Noor Al-Mana, Zhonglin Zhang
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Patent number: 11602735Abstract: In accordance with one or more embodiments of the present disclosure, a multi-stage process for upgrading pyrolysis oil comprising polyaromatic compounds to benzene, toluene, ethylbenzene, and xylenes (BTEX) includes upgrading the pyrolysis oil in a slurry-phase reactor zone to produce intermediate products, wherein the slurry-phase reactor zone comprises a mixed metal oxide catalyst; and hydrocracking the intermediate products in a fixed-bed reactor zone to produce the BTEX, wherein the fixed-bed reactor zone comprises a mesoporous zeolite-supported metal catalyst.Type: GrantFiled: November 5, 2021Date of Patent: March 14, 2023Assignee: Saudi Arabian Oil CompanyInventors: Miao Sun, Sohel K. Shaikh, Ibrahim A. Abba, Noor Al-Mana, Ke Zhang, Zhonglin Zhang
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Publication number: 20230052047Abstract: A battery (1), a battery module, a battery pack, and an electric vehicle are provided. The battery (1) includes a housing (10) and M battery core assemblies (20). The M battery core assemblies (20) are arranged in the housing (10), and M?2. The M battery core assemblies (20) are stacked. The M battery core assemblies (20) are electrically connected. Each battery core (20) assembly includes multiple electrode core assemblies (21). The multiple electrode core assemblies (21) in each battery core assembly (20) are connected in series.Type: ApplicationFiled: January 5, 2021Publication date: February 16, 2023Inventors: Zhonglin ZHANG, Yanfei ZHOU, Yue ZHANG
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Patent number: 11578276Abstract: A method for upgrading pyrolysis oil includes contacting a pyrolysis oil feed with hydrogen in the presence of a mixed metal oxide catalyst in a first slurry reactor, where: the pyrolysis oil feed comprises multi-ring aromatic compounds comprising greater than or equal to sixteen carbon atoms, and contacting the pyrolysis oil feed with hydrogen in the presence of the mixed metal oxide catalyst in the first slurry reactor to convert at least a portion of the multi-ring aromatic compounds in the pyrolysis oil feed to light aromatic compounds comprising di-aromatic compounds, tri-aromatic compounds, or both, passing an intermediate stream comprising the light aromatic compounds to a second slurry reactor downstream of the first slurry reactor; and contacting the intermediate stream with hydrogen in the presence of a mesoporous zeolite supported metal catalyst in a second slurry reactor.Type: GrantFiled: July 1, 2021Date of Patent: February 14, 2023Assignee: Saudi Arabian Oil CompanyInventors: Miao Sun, Sohel K Shaikh, Ibrahim A. Abba, Noor Al-Mana, Zhonglin Zhang