Patents by Inventor Emad N. Shafei
Emad N. Shafei 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: 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: 11149213Abstract: Embodiments of the disclosure provide a system and method for producing light olefins from a crude oil. A crude oil feed is introduced to a crude distillation unit to produce a distillate fraction and a residue fraction. The distillate fraction is introduced to a non-catalytic steam cracker to produce a light olefin fraction and a pyrolysis oil fraction. The residue fraction is introduced to a supercritical water reactor to produce an effluent stream. The effluent stream is introduced to a flash separator to produce a gas phase fraction and a liquid phase fraction. The gas phase fraction is introduced to a catalytic steam cracker to produce a light olefin fraction and a pyrolysis oil fraction. Optionally, the residue fraction is introduced to a vacuum distillation unit to produce a light vacuum gasoil fraction, a heavy vacuum gasoil fraction, and a vacuum residue fraction. The vacuum residue fraction is introduced to a solvent deasphalting unit to produce a deasphalted oil and a pitch fraction.Type: GrantFiled: December 27, 2019Date of Patent: October 19, 2021Inventors: Ki-Hyouk Choi, Ali S. Alnasir, Emad N. Shafei
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Publication number: 20210214620Abstract: 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: ApplicationFiled: March 24, 2021Publication date: July 15, 2021Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Emad N. Shafei, Mohammed Zuhair Albahar, Abdulaziz A. Ghabbani
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Publication number: 20210198585Abstract: Embodiments of the disclosure provide a system and method for producing light olefins from a crude oil. A crude oil feed is introduced to a crude distillation unit to produce a distillate fraction and a residue fraction. The distillate fraction is introduced to a non-catalytic steam cracker to produce a light olefin fraction and a pyrolysis oil fraction. The residue fraction is introduced to a supercritical water reactor to produce an effluent stream. The effluent stream is introduced to a flash separator to produce a gas phase fraction and a liquid phase fraction. The gas phase fraction is introduced to a catalytic steam cracker to produce a light olefin fraction and a pyrolysis oil fraction. Optionally, the residue fraction is introduced to a vacuum distillation unit to produce a light vacuum gasoil fraction, a heavy vacuum gasoil fraction, and a vacuum residue fraction. The vacuum residue fraction is introduced to a solvent deasphalting unit to produce a deasphalted oil and a pitch fraction.Type: ApplicationFiled: December 27, 2019Publication date: July 1, 2021Applicant: SAUDI ARABIAN OIL COMPANYInventors: Ki-Hyouk CHOI, Ali S. ALNASIR, Emad N. SHAFEI
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Patent number: 11021659Abstract: 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: February 26, 2018Date of Patent: June 1, 2021Inventors: Ki-Hyouk Choi, Emad N. Shafei, Mohammed Zuhair Albahar, Abdulaziz A. Ghabbani
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Publication number: 20190264110Abstract: 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: ApplicationFiled: February 26, 2018Publication date: August 29, 2019Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk CHOI, Emad N. SHAFEI, Mohammed Zuhair ALBAHAR, Abdulaziz A. GHABBANI
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Patent number: 10202552Abstract: A method to remove a metals impurity from a petroleum feedstock for use in a power generating process is provided. The method comprising the steps of mixing a heated feedstock with a heated water stream in a mixing device to produce a mixed stream; introducing the mixed stream to a supercritical water reactor in the absence of externally provided hydrogen and externally provided oxidizing agent to produce a reactor effluent comprising a refined petroleum portion; cooling the reactor effluent to produce a cooled stream; feeding the cooled stream to a rejecter configured to separate a sludge fraction to produce a de-sludged stream; reducing the pressure of the de-sludged stream to produce a depressurized product; separating the depressurized product to produce a gas phase product and a liquid product; separating the liquid product to produce a petroleum product, having a reduced asphaltene content, reduced concentration of metals impurity, and reduced sulfur.Type: GrantFiled: February 13, 2018Date of Patent: February 12, 2019Assignee: SAUDI ARABIAN OIL COMPANYInventors: Ki-Hyouk Choi, Emad N. Shafei, Ashok K. Punetha, Joo-Hyeong Lee, Mohammad A. Alabdullah
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Publication number: 20180171240Abstract: A method to remove a metals impurity from a petroleum feedstock for use in a power generating process is provided. The method comprising the steps of mixing a heated feedstock with a heated water stream in a mixing device to produce a mixed stream; introducing the mixed stream to a supercritical water reactor in the absence of externally provided hydrogen and externally provided oxidizing agent to produce a reactor effluent comprising a refined petroleum portion; cooling the reactor effluent to produce a cooled stream; feeding the cooled stream to a rejecter configured to separate a sludge fraction to produce a de-sludged stream; reducing the pressure of the de-sludged stream to produce a depressurized product; separating the depressurized product to produce a gas phase product and a liquid product; separating the liquid product to produce a petroleum product, having a reduced asphaltene content, reduced concentration of metals impurity, and reduced sulfur.Type: ApplicationFiled: February 13, 2018Publication date: June 21, 2018Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk CHOI, Emad N. SHAFEI, Ashok K. PUNETHA, Joo-Hyeong LEE, Mohammad A. ALABDULLAH
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Patent number: 9926497Abstract: A method to remove a metals impurity from a petroleum feedstock for use in a power generating process is provided. The method comprising the steps of mixing a heated feedstock with a heated water stream in a mixing device to produce a mixed stream; introducing the mixed stream to a supercritical water reactor in the absence of externally provided hydrogen and externally provided oxidizing agent to produce a reactor effluent comprising a refined petroleum portion; cooling the reactor effluent to produce a cooled stream; feeding the cooled stream to a rejecter configured to separate a sludge fraction to produce a de-sludged stream; reducing the pressure of the de-sludged stream to produce a depressurized product; separating the depressurized product to produce a gas phase product and a liquid product; separating the liquid product to produce a petroleum product, having a reduced asphaltene content, reduced concentration of metals impurity, and reduced sulfur.Type: GrantFiled: October 16, 2015Date of Patent: March 27, 2018Assignee: SAUDI ARABIAN OIL COMPANYInventors: Ki-Hyouk Choi, Emad N. Shafei, Ashok K. Punetha, Joo-Hyeong Lee, Mohammad A. Alabdullah
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Publication number: 20170107433Abstract: A method to remove a metals impurity from a petroleum feedstock for use in a power generating process is provided. The method comprising the steps of mixing a heated feedstock with a heated water stream in a mixing device to produce a mixed stream; introducing the mixed stream to a supercritical water reactor in the absence of externally provided hydrogen and externally provided oxidizing agent to produce a reactor effluent comprising a refined petroleum portion; cooling the reactor effluent to produce a cooled stream; feeding the cooled stream to a rejecter configured to separate a sludge fraction to produce a de-sludged stream; reducing the pressure of the de-sludged stream to produce a depressurized product; separating the depressurized product to produce a gas phase product and a liquid product; separating the liquid product to produce a petroleum product, having a reduced asphaltene content, reduced concentration of metals impurity, and reduced sulfur.Type: ApplicationFiled: October 16, 2015Publication date: April 20, 2017Inventors: Ki-Hyouk CHOI, Emad N. SHAFEI, Ashok K. PUNETHA, Joo-Hyeong LEE, Mohammad A. ALABDULLAH
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Patent number: 9505678Abstract: A process for producing aromatics from a hydrocarbon source in the presence of supercritical water comprising the steps of mixing a pressurized, pre-heated water stream with a pressurized, pre-heated petroleum feedstock, the pressurized, pre-heated water stream at a pressure above the critical pressure of water and a temperature above the critical temperature of water, feeding the combined stream to a supercritical water reactor to create a modified stream, cooling and depressurizing the modified stream, separating the depressurized stream in a vapor-liquid separator, condensing the vapor stream, separating the condensed stream into a water recovery stream and a light product recovery stream, extracting the aromatics from the light product recovery stream, depressurizing the liquid stream, separating the depressurized liquid stream in a heavy separator into an upgraded product stream, and recycling part of the upgraded product stream to the pressurized, pre-heated petroleum feedstock as a product recycle.Type: GrantFiled: May 12, 2014Date of Patent: November 29, 2016Assignee: SAUDI ARABIAN OIL COMPANYInventors: Ki-Hyouk Choi, Joo-Hyeong Lee, Emad N. Shafei, Faisal M. Al-Faqeer
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Publication number: 20150321975Abstract: A process for producing aromatics from a hydrocarbon source in the presence of supercritical water comprising the steps of mixing a pressurized, pre-heated water stream with a pressurized, pre-heated petroleum feedstock, the pressurized, pre-heated water stream at a pressure above the critical pressure of water and a temperature above the critical temperature of water, feeding the combined stream to a supercritical water reactor to create a modified stream, cooling and depressurizing the modified stream, separating the depressurized stream in a vapor-liquid separator, condensing the vapor stream, separating the condensed stream into a water recovery stream and a light product recovery stream, extracting the aromatics from the light product recovery stream, depressurizing the liquid stream, separating the depressurized liquid stream in a heavy separator into an upgraded product stream, and recycling part of the upgraded product stream to the pressurized, pre-heated petroleum feedstock as a product recycle.Type: ApplicationFiled: May 12, 2014Publication date: November 12, 2015Applicant: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Joo-Hyeong Lee, Emad N. Shafei, Faisal M. Al-Faqeer