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).

  • Patent number: 11479729
    Abstract: 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: Grant
    Filed: March 24, 2021
    Date of Patent: October 25, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Ki-Hyouk Choi, Emad N. Shafei, Mohammed Zuhair Albahar, Abdulaziz A. Ghabbani
  • Patent number: 11149213
    Abstract: 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: Grant
    Filed: December 27, 2019
    Date of Patent: October 19, 2021
    Inventors: Ki-Hyouk Choi, Ali S. Alnasir, Emad N. Shafei
  • Publication number: 20210214620
    Abstract: 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: Application
    Filed: March 24, 2021
    Publication date: July 15, 2021
    Applicant: Saudi Arabian Oil Company
    Inventors: Ki-Hyouk Choi, Emad N. Shafei, Mohammed Zuhair Albahar, Abdulaziz A. Ghabbani
  • Publication number: 20210198585
    Abstract: 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: Application
    Filed: December 27, 2019
    Publication date: July 1, 2021
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventors: Ki-Hyouk CHOI, Ali S. ALNASIR, Emad N. SHAFEI
  • Patent number: 11021659
    Abstract: 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: Grant
    Filed: February 26, 2018
    Date of Patent: June 1, 2021
    Inventors: Ki-Hyouk Choi, Emad N. Shafei, Mohammed Zuhair Albahar, Abdulaziz A. Ghabbani
  • Publication number: 20190264110
    Abstract: 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: Application
    Filed: February 26, 2018
    Publication date: August 29, 2019
    Applicant: Saudi Arabian Oil Company
    Inventors: Ki-Hyouk CHOI, Emad N. SHAFEI, Mohammed Zuhair ALBAHAR, Abdulaziz A. GHABBANI
  • Patent number: 10202552
    Abstract: 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: Grant
    Filed: February 13, 2018
    Date of Patent: February 12, 2019
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Ki-Hyouk Choi, Emad N. Shafei, Ashok K. Punetha, Joo-Hyeong Lee, Mohammad A. Alabdullah
  • Publication number: 20180171240
    Abstract: 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: Application
    Filed: February 13, 2018
    Publication date: June 21, 2018
    Applicant: Saudi Arabian Oil Company
    Inventors: Ki-Hyouk CHOI, Emad N. SHAFEI, Ashok K. PUNETHA, Joo-Hyeong LEE, Mohammad A. ALABDULLAH
  • Patent number: 9926497
    Abstract: 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: Grant
    Filed: October 16, 2015
    Date of Patent: March 27, 2018
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Ki-Hyouk Choi, Emad N. Shafei, Ashok K. Punetha, Joo-Hyeong Lee, Mohammad A. Alabdullah
  • Publication number: 20170107433
    Abstract: 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: Application
    Filed: October 16, 2015
    Publication date: April 20, 2017
    Inventors: Ki-Hyouk CHOI, Emad N. SHAFEI, Ashok K. PUNETHA, Joo-Hyeong LEE, Mohammad A. ALABDULLAH
  • Patent number: 9505678
    Abstract: 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: Grant
    Filed: May 12, 2014
    Date of Patent: November 29, 2016
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Ki-Hyouk Choi, Joo-Hyeong Lee, Emad N. Shafei, Faisal M. Al-Faqeer
  • Publication number: 20150321975
    Abstract: 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: Application
    Filed: May 12, 2014
    Publication date: November 12, 2015
    Applicant: Saudi Arabian Oil Company
    Inventors: Ki-Hyouk Choi, Joo-Hyeong Lee, Emad N. Shafei, Faisal M. Al-Faqeer