Patents by Inventor Ki-Hyouk Choi
Ki-Hyouk Choi 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: 11578273Abstract: A method of upgrading an overflash stream from a vacuum distillation unit comprising the steps of separating the overflash stream from an atmospheric residue stream, the overflash stream comprises an overflash fraction having a T10% between 475 and 530° C. and a T90% between 600 and 700° C.; introducing the reactor feed to a supercritical reactor at a temperature between 380° C. and 500° C. and a pressure between 25 MPa and 30 MPa; maintaining upgrading reactions in the supercritical reactor to upgrade the overflash fraction such that a reactor effluent comprises upgraded hydrocarbons relative to the overflash fraction; reducing a temperature of a reactor effluent in a cooling device to produce a cooled stream; reducing a pressure of the cooled stream in a depressurizing device to produce a discharged stream; and separating the discharged stream in a gas-liquid separator to produce a liquid phase product.Type: GrantFiled: February 15, 2022Date of Patent: February 14, 2023Assignee: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Young-Kyoung Ahn
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Patent number: 11542445Abstract: Embodiments of the disclosure provide an aqueous reforming system and a method for upgrading heavy hydrocarbons. A hydrocarbon feed and a surfactant stream are combined to produce a first precursor stream. The first precursor stream and an alkali feed are combined to produce a second precursor stream. The second precursor stream and a transition metal feed are combined to produce a catalytic emulsion stream. The catalytic emulsion stream is heated to produce a catalytic suspension and a decomposition gas, where the decomposition gas is separated by a first separator. The catalytic suspension is combined with a preheated water stream to produce an aqueous reformer feed. The aqueous reformer feed is introduced to an aqueous reformer such that the heavy hydrocarbons undergo conversion reactions to produce an effluent stream. The effluent stream is introduced to a second separator to produce a heavy stream and a light stream.Type: GrantFiled: August 9, 2021Date of Patent: January 3, 2023Assignee: Saudi Arabian Oil CompanyInventors: Mazin M. Fathi, Ki-Hyouk Choi, Mohammed R. Aldossary
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Patent number: 11542438Abstract: Methods for utilizing a supercritical water unit to convert waste plastics to product through hydrothermal treatment in a supercritical unit are provided. Waste plastic is treated in a pretreatment unit, melting the plastic into a liquid and prepares the plastic for the supercritical water unit. The pretreatment unit can dehalogenate the waste plastic. The molten plastic is introduced into a supercritical water unit with water, which generates a product. A flushing stream of product and steam or water from the supercritical water unit is recycled from the supercritical water unit into the pretreatment unit, preheating and pretreating the waste plastic, and acting as a catalyst in the dechlorination reaction. A purge stream removes the products of the dehalogentation reaction occurring in the melting section.Type: GrantFiled: January 14, 2022Date of Patent: January 3, 2023Inventor: Ki-Hyouk Choi
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Publication number: 20220372378Abstract: A process for treating a feed oil in the presence of in situ produced catalyst particles comprising the steps of mixing the supercritical water feed with the pressurized precursor solution in a catalyst mixer to produce a supercritical water stream; withdrawing the supercritical water stream to a process line, where the catalyst precursor is converted to catalyst particles in the process line; mixing the supercritical water stream and the hot oil stream in the mixer to produce a mixed stream; introducing the mixed stream to a reactor; processing the heavy oil in the reactor in the presence of the catalyst particles to produce a reactor effluent; reducing a temperature of the reactor effluent to produce a cooled effluent; reducing a pressure of the cooled effluent to produce a depressurized effluent; and separating the depressurized effluent to produce a product gas, a product oil, and a product water.Type: ApplicationFiled: May 24, 2021Publication date: November 24, 2022Applicant: Saudi Arabian Oil CompanyInventor: Ki-Hyouk Choi
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Publication number: 20220372381Abstract: An integrated catalytic process for upgrading a feed oil comprises the steps of introducing a catalyst precursor solution to a supercritical water (SCW) process unit, where the catalyst precursor solution comprises a catalyst precursor dissolved in liquid water; introducing a feed water to the SCW process unit; introducing the feed oil to the SCW process unit; treating the catalyst precursor solution, the feed water, and the feed oil in the SCW process unit to produce a SCW effluent, where the catalyst precursor is converted to catalyst particles; separating the SCW effluent in a separator unit to produce a SCW distillate product, a SCW residue product; introducing the SCW residue product to a slurry hydroprocessing unit, where the SCW residue product comprises the catalyst particles; treating the SCW residue product and the hydrogen gas in the slurry hydroprocessing unit to produce a product gas stream and an upgraded oil product.Type: ApplicationFiled: May 24, 2021Publication date: November 24, 2022Applicant: Saudi Arabian Oil CompanyInventor: Ki-Hyouk Choi
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Patent number: 11479729Abstract: A method of upgrading a petroleum feedstock, the method comprising the steps of introducing a disulfide oil, a water feed, and a petroleum feedstock to a supercritical water upgrading unit, and operating the supercritical water upgrading unit to produce a product gas stream, a product oil stream, and a used water stream.Type: GrantFiled: March 24, 2021Date of Patent: October 25, 2022Assignee: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Emad N. Shafei, Mohammed Zuhair Albahar, Abdulaziz A. Ghabbani
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Patent number: 11466221Abstract: A process for upgrading a hydrocarbon-based composition that includes combining a supercritical water stream, a hydrogen stream, and a pressurized, heated hydrocarbon-based composition in a mixing device to create a combined feed stream. The process further includes introducing the combined feed stream into a supercritical water hydrogenation reactor operating at a temperature greater than a critical temperature of water and a pressure greater than a critical pressure of water, and at least partially converting the combined feed stream to an upgraded product.Type: GrantFiled: January 4, 2021Date of Patent: October 11, 2022Assignee: Saudi Arabian Oil CompanyInventors: Mazin M. Fathi, Ki-Hyouk Choi
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Publication number: 20220297098Abstract: 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° C. to 60° 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° C./minute to 12° C./minute to a second temperature of from 115° C. to 185° 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.Type: ApplicationFiled: March 19, 2021Publication date: September 22, 2022Applicants: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Emad Al-Shafei, Oki Muraza, Anas Karrar Jamil, Ki-Hyouk Choi, Ashok K. Punetha, Zain Hassan Yamani
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Publication number: 20220266236Abstract: According to embodiments, methods for the production of boron-silicalite-1 are disclosed. In embodiments, the method may include combining a mineralizer agent, a templating agent, water, and boric acid in a first microwave unit; heating the first microwave unit to form a boron-zeolite; calcining the boron-zeolite to form an alkali-zeolite; combining the alkali-zeolite with ammonium nitrate to produce an ion-exchanged zeolite; heating the ion-exchanged zeolite to form a protonated zeolite; and calcining the protonated zeolite to form the boron-silicalite-1. In embodiments, the method may include combining a templating agent, water, and boric acid in a first hydrothermal unit; heating the first microwave unit to form a boron-zeolite; calcining the boron-zeolite to form an alkali-zeolite; combining the alkali-zeolite with ammonium nitrate to produce an ion-exchanged zeolite; heating the ion-exchanged zeolite to form a protonated zeolite; and calcining the protonated zeolite to form the boron-silicalite-1.Type: ApplicationFiled: February 25, 2021Publication date: August 25, 2022Applicants: Saudi Arabian Oil Company, King Fahd University of Petroleum and MineralsInventors: Emad Al-Shafei, Oki Muraza, Mohammed Ahmed Sanhoob, Mohammed Z. Al-Bahar, Ki-Hyouk Choi, Zain Hassan Yamani, Ali S. Al-Nasir
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Publication number: 20220243136Abstract: A process for upgrading a heavy oil includes passing heavy oil and disulfide oil to a thermal cracking system that includes a thermal cracking unit and a cracker effluent separation system downstream of the thermal cracking unit and thermally cracking at least a portion of the heavy oil in the presence of the disulfide oil in the thermal cracking unit to produce solid coke and a cracking effluent comprising reaction products. The reaction products include one or more liquid reaction products, one or more gaseous reaction products, or both. The presence of the disulfide oil in the thermal cracking unit promotes conversion of hydrocarbons from the heavy oil to the liquid reaction products, the gaseous reaction products, or both relative to the production of the solid coke.Type: ApplicationFiled: March 18, 2022Publication date: August 4, 2022Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Mazin M. Fathi, Maddala Venkata Bhanumurthy, Abdullah M. Salma, Faisal M. Almulla, Ali M. Alsomali, Young-Kyoung Ahn
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Patent number: 11401470Abstract: A process to produce pitch, the process comprising the steps of introducing a depressurized effluent to a flash column; separating the depressurized effluent in the flash column to produce a liquid product; introducing the liquid product to a dweller; operating the dweller at a temperature between 350° C. and 500° C., a pressure between 0.1 psig and 10 psig, and a residence time between 30 minutes and 4 hours to produce a pitch stream and a reaction gas stream, wherein the dweller is a continuous stirred tank reactor (CSTR), wherein dehydrogenative polymerization reactions occur in the dweller to produce pitch, wherein the inert gas stream is operable to remove volatile components from the liquid product; removing a pitch stream from the dweller, wherein the pitch stream comprises the pitch; and removing a reaction gas stream, wherein the reaction gas stream comprises the volatile components and nitrogen.Type: GrantFiled: May 19, 2020Date of Patent: August 2, 2022Assignee: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Ali Alnasir
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Publication number: 20220235283Abstract: Embodiments of the present disclosure are directed to a process for producing upgraded product from residue comprising atmospheric residue or vacuum residue upgrading comprising separating the residue through a Solvent Deasphalting (SDA) unit, wherein the SDA unit includes an asphaltene separator that separates the residue into asphaltene pitch and a stream comprising deasphalted oil (DAO) and resin, and a resin separator that subsequently separates the stream comprising DAO and resin into separate DAO and resin streams, treating the resin stream with supercritical water (SCW) to produce an upgraded resin stream, and hydroprocessing a portion of the upgraded resin stream and the DAO stream to produce the upgraded product.Type: ApplicationFiled: January 28, 2021Publication date: July 28, 2022Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Mohammed S. Aldossary, Abdullah T. Alabdulhadi
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Patent number: 11390816Abstract: A process for forming a petroleum product includes introducing a feed stream of a petroleum feedstock to a supercritical water reactor. The feed stream is reacted with supercritical water in the supercritical water reactor, thereby forming a supercritical water reactor effluent. The supercritical water reactor effluent is introduced to a separator to separate the supercritical water reactor effluent into a light stream and a heavy stream. At least a portion of the light stream is introduced to a reformer to concentrate aromatics in the at least a portion of the light stream, thereby forming a reformer effluent. The reformer effluent is mixed with the heavy stream.Type: GrantFiled: June 16, 2020Date of Patent: July 19, 2022Assignee: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Mazin M. Fathi
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Publication number: 20220220046Abstract: A process for producing olefins from the hydrocarbon feed includes introducing the hydrocarbon feed into a Solvent Deasphalting Unit (SDA) to remove asphaltene from the hydrocarbon feed producing a deasphalted oil stream, wherein the SDA comprises a solvent that reacts with the hydrocarbon feed, and the deasphalted oil stream comprises from 0.01 weight percent (wt. %) to 18 wt. % asphaltenes; introducing the deasphalted oil stream into a steam catalytic cracking system; steam catalytically cracking the deasphalted oil stream in the steam catalytic cracking system in the presence of steam and a nano zeolite cracking catalyst to produce a steam catalytic cracking effluent; and separating the olefins from the steam catalytic cracking effluent.Type: ApplicationFiled: January 12, 2021Publication date: July 14, 2022Applicant: Saudi Arabian Oil CompanyInventors: Emad Naji Al-Shafei, Mohammed Z. Al-Bahar, Ali Nader Al-Jishi, Ki-Hyouk Choi, Mohammad F. Al-Jishi, Ali S. Al-Nasir
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Publication number: 20220220047Abstract: A process for producing olefins from the hydrocarbon feed includes introducing the hydrocarbon feed into a Solvent Deasphalting Unit (SDA) to remove asphaltene from the hydrocarbon feed producing a deasphalted oil stream, wherein the SDA comprises a solvent that reacts with the hydrocarbon feed, and the deasphalted oil stream comprises from 0.01 weight percent (wt. %) to 18 wt. % asphaltenes; introducing the deasphalted oil stream into a steam catalytic cracking system; steam catalytically cracking the deasphalted oil stream in the steam catalytic cracking system in the presence of steam and a nano zeolite cracking catalyst to produce a steam catalytic cracking effluent; and separating the olefins from the steam catalytic cracking effluent.Type: ApplicationFiled: March 30, 2022Publication date: July 14, 2022Applicant: Saudi Arabian Oil CompanyInventors: Emad Naji Al-Shafei, Mohammed Z. Al-Bahar, Ali Nader Al-Jishi, Ki-Hyouk Choi, Mohammad F. Al-Jishi, Ali S. Al-Nasir
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Publication number: 20220220396Abstract: A process for upgrading a hydrocarbon-based composition that includes combining a supercritical water stream with a pressurized, heated hydrocarbon-based composition in a mixing device to create a combined feed stream. The combined feed stream is introduced into a supercritical upgrading reactor to at least partially convert the combined feed stream to an upgraded product. The process includes separating the upgraded product to produce a light fraction and a heavy fraction, and separating the light fraction in the gas/oil/water separator to produce a gas fraction, a liquid oil fraction, and a first water fraction; combining the heavy fraction with at least a portion of one of the liquid oil fraction or the first water fraction to form a diluted heavy fraction; and passing the diluted heavy fraction from the flash drum to a demulsifier mixer to form a demulsified heavy fraction.Type: ApplicationFiled: January 6, 2021Publication date: July 14, 2022Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Mazin M. Fathi
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Publication number: 20220220392Abstract: The present disclosure is directed to petrochemical processing systems that may include a component including a first surface oriented to contact a process fluid, which may define a plurality of channels. The petrochemical processing systems may further include a plurality of metal spheres disposed at least partially in the plurality of channels. Each one of the plurality of metal spheres may be fixed in place within one of the plurality of channels such that each of the plurality of metal spheres is freely rotatable. Methods for reducing accumulation and formation of solid deposits during petrochemical processing using the petrochemical processing systems are also disclosed.Type: ApplicationFiled: January 12, 2021Publication date: July 14, 2022Applicant: Saudi Arabian Oil CompanyInventors: Mazin M. Fathi, Ki-Hyouk Choi
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Patent number: 11384291Abstract: The present disclosure is directed to petrochemical processing systems that may include a component including a first surface oriented to contact a process fluid, which may define a plurality of channels. The petrochemical processing systems may further include a plurality of metal spheres disposed at least partially in the plurality of channels. Each one of the plurality of metal spheres may be fixed in place within one of the plurality of channels such that each of the plurality of metal spheres is freely rotatable. Methods for reducing accumulation and formation of solid deposits during petrochemical processing using the petrochemical processing systems are also disclosed.Type: GrantFiled: January 12, 2021Date of Patent: July 12, 2022Assignee: Saudi Arabian Oil CompanyInventors: Mazin M. Fathi, Ki-Hyouk Choi
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Patent number: 11384294Abstract: A process for treating a disulfide oil composition that includes combining a supercritical water stream, a hydrogen stream, and a disulfide oil composition in a mixing device to create a combined disulfide feed stream; introducing the combined disulfide feed stream into a supercritical water hydrogenation reactor operating at a temperature greater than a critical temperature of water and a pressure greater than a critical pressure of water; and at least partially converting the combined disulfide feed stream to an upgraded disulfide product.Type: GrantFiled: January 4, 2021Date of Patent: July 12, 2022Assignee: Saudi Arabian Oil CompanyInventors: Mazin M. Fathi, Ki-Hyouk Choi
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Publication number: 20220213393Abstract: A process for upgrading a hydrocarbon-based composition that includes combining a supercritical water stream, a hydrogen stream, and a pressurized, heated hydrocarbon-based composition in a mixing device to create a combined feed stream. The process further includes introducing the combined feed stream into a supercritical water hydrogenation reactor operating at a temperature greater than a critical temperature of water and a pressure greater than a critical pressure of water, and at least partially converting the combined feed stream to an upgraded product.Type: ApplicationFiled: January 4, 2021Publication date: July 7, 2022Applicant: Saudi Arabian Oil CompanyInventors: Mazin M. Fathi, Ki-Hyouk Choi