Patents by Inventor Vinod Ramaseshan

Vinod Ramaseshan 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: 11920093
    Abstract: A process for upgrading a hydrocarbon feed includes contacting the hydrocarbon feed with hydrogen in the presence of a ring opening catalyst in a naphthene conversion unit, the contacting causing naphthenes in the hydrocarbon feed to react to produce a converted effluent comprising isoparaffins and normal paraffins. The process includes separating the converted effluent in a paraffin separation system to produce an isoparaffin-rich stream and an n-paraffin-rich stream. The process includes contacting the isoparaffin-rich stream with hydrogen in the presence of an isomerization catalyst in a reverse isomerization unit, the contacting causing isomerization to produce an isomerate comprising an equilibrium mixture of normal paraffins and isoparaffins. The process include separating the isomerate in the paraffin separation system to produce the isoparaffin-rich stream and the n-paraffin-rich stream, and passing the n-paraffin-rich stream to a steam cracker to produce a cracker effluent comprising olefins.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: March 5, 2024
    Assignee: Saudi Arabian Oil Company
    Inventors: Vishvedeep Bhat, Vinod Ramaseshan, Omer Refa Koseoglu
  • Patent number: 11866654
    Abstract: A method for producing a diesel having improved cold flow properties, the method comprising the steps of introducing a crude oil to a distillation column, separating the crude oil in the distillation unit to produce a light gas oil, and a light vacuum gas oil, where the light gas oil has a T95% cut point in the range between 300 deg C. and 340 deg C., where the light vacuum gas oil has a T95% cut point in the range between 400 deg C. and 430 deg C., processing the light vacuum gas oil in the supercritical water unit to produce an upgraded vacuum gas oil, separating the upgraded vacuum gas oil in the fractionator to produce an upgraded light fraction, an upgraded light gas oil, and upgraded heavy fraction, introducing the upgraded light gas oil into a diesel pool, and blending the light gas oil into the diesel pool.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: January 9, 2024
    Assignee: Saudi Arabian Oil Company
    Inventors: Ki-Hyouk Choi, Vinod Ramaseshan, Mohnnad H. Alabsi
  • Publication number: 20230193145
    Abstract: Provided is a system to upgrade an input stream of a straight run vacuum residue or a cracked feedstock that includes a vacuum column, a hydrocracking unit, a high lift solvent deasphalting unit, a low lift solvent deasphalting unit, and a bitumen blowing unit or a pitch pelletizing unit, and optionally a hydrotreating reactor. The system and components thereof may pass a distillate and naphtha product, a light ends product, an asphaltene-lean heavy deasphalted oil stream, an asphaltene-rich pitch stream, a light deasphalted oil that is a lube base feed stock, a heavy oil stream, a bitumen and asphalt stream or a solid fuel. Further provided is a process, including introducing a straight run vacuum residue or a cracked feed stock into a system, and operating the system including a step of fractionating, a step of solvent stage deasphalting, and a step of hydrocracking.
    Type: Application
    Filed: December 21, 2022
    Publication date: June 22, 2023
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventors: Vinod Ramaseshan, Emad Al Subaie, Hector Infante, Jesse Williams, Rustam Ismagilov, Abdalaziz A. Al-Balawi, Ashok Kumar Choudhary
  • Patent number: 11613713
    Abstract: Systems and methods for crude oil separation and upgrading, which include the ability to reduce aromatic complex bottoms content in gasoline and higher-quality aromatic compounds. In some embodiments, aromatic complex bottoms are recycled for further processing. In some embodiments, aromatic complex bottoms are separated for further processing.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: March 28, 2023
    Assignee: Saudi Arabian Oil Company
    Inventors: Omer Refa Koseoglu, Robert Peter Hodgkins, Bruce Richard Beadle, Vinod Ramaseshan, Rakan Sulaiman Bilaus
  • Patent number: 11319498
    Abstract: Methods and systems for producing light olefins are disclosed. A feedstock comprising crude oil is distilled to produce a plurality of streams including a naphtha stream and a vacuum residue stream. The naphtha is fed to a steam cracking unit to produce light olefins, C4 hydrocarbons, pyrolysis gasoline and pyrolysis oil. The vacuum residue stream is hydrocracked to produce additional naphtha and heavy unconverted oil. The heavy unconverted oil and the pyrolysis oil from steam cracking unit can be deasphalted to produce deasphalted oil and pitch product. The deasphalted oil can be further hydrocracked to produce naphtha. The pitch product can be gasified to produce synthesis gas, which is further used to produce methanol. The methanol can be used to react with isobutylene of the C4 hydrocarbon stream from steam cracker to produce methyl tert-butyl ether (MTBE).
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 3, 2022
    Assignees: SABIC GLOBAL TECHNOLOGIES B.V., SAUDI ARABIAN OIL COMPANY
    Inventors: Nicolas Goyheneix, Hatem Belfadhel, Jurgen Kleibergen, Vinod Ramaseshan, Timothy Abbott, Mohamed Sabri Abdelghani
  • Patent number: 11267769
    Abstract: Systems and methods for hydrodearylation of a hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons, the method including supplying a hydrogen feed to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; mixing the hydrogen feed with the hydrocarbon feed stream to saturate the hydrocarbon feed stream with hydrogen gas to create a hydrogen-enriched liquid hydrocarbon stream; passing the hydrogen-enriched liquid hydrocarbon stream to a hydrodearylation reactor without a separate gaseous phase of hydrogen; allowing the hydrogen-enriched liquid hydrocarbon stream to react in presence of a catalyst under specific reaction conditions to produce a product stream comprising a reduced concentration of di-aromatic compounds and an increased concentration of mono-aromatic compounds compared to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; and recovering, from the hydrodearylation reactor, a p
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: March 8, 2022
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Omer Refa Koseoglu, Robert Peter Hodgkins, Bruce Richard Beadle, Vinod Ramaseshan
  • Patent number: 11261387
    Abstract: A system for processing a stream including fuel oil includes an atmospheric flash column for receiving the stream as feedstock and separate the stream into an atmospheric flash distillate stream and an atmospheric flash residue stream. The system includes a vacuum flash column for receiving the atmospheric flash residue stream and separating the atmospheric flash residue stream into a vacuum flash distillate stream, a vacuum flash residue stream, and a vacuum gas oil stream. The system includes a first hydrocracking unit for receiving and processing at least a portion of the vacuum flash residue stream to produce an intermediate stream and a slurry. The system includes a second hydrocracking unit for receiving and processing the vacuum gas oil stream and the intermediate stream to produce a naphtha product and a light ends product. The system includes a pelletization unit for receiving and processing the slurry to produce a pelletized product.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: March 1, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Eric Wei, Vinod Ramaseshan, Donald Saunders
  • Publication number: 20220056355
    Abstract: Methods and systems for producing light olefins are disclosed. A feedstock comprising crude oil is distilled to produce a plurality of streams including a naphtha stream and a vacuum residue stream. The naphtha is fed to a steam cracking unit to produce light olefins, C4 hydrocarbons, pyrolysis gasoline and pyrolysis oil. The vacuum residue stream is hydrocracked to produce additional naphtha and heavy unconverted oil. The heavy unconverted oil and the pyrolysis oil from steam cracking unit can be deasphalted to produce deasphalted oil and pitch product. The deasphalted oil can be further hydrocracked to produce naphtha. The pitch product can be gasified to produce synthesis gas, which is further used to produce methanol. The methanol can be used to react with isobutylene of the C4 hydrocarbon stream from steam cracker to produce methyl tert-butyl ether (MTBE).
    Type: Application
    Filed: December 3, 2019
    Publication date: February 24, 2022
    Inventors: Nicolas GOYHENEIX, Hatem BELFADHEL, Jurgen KLEIBERGEN, Vinod RAMASESHAN, Timothy ABBOTT, Mohamed Sabri ABDELGHANI
  • Patent number: 11248180
    Abstract: An integrated upgrading process for upgrading a heavy oil, the process comprising the steps of introducing a heavy oil to a visbreaker unit; processing the heavy oil in the visbreaker unit to produce a visbreaker product stream; feeding the visbreaker product stream to a fractionator; separating the visbreaker product stream in the fractionator to produce a bottoms stream, a gas oil stream, a naphtha stream, and a gas product stream; feeding the bottoms stream to a supercritical water unit; and processing the bottoms stream in the supercritical water unit to produce an upgraded bottoms stream.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: February 15, 2022
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Ki-Hyouk Choi, Mazin M. Fathi, Mohnnad H. Alabsi, Vinod Ramaseshan
  • Patent number: 11118122
    Abstract: Techniques for processing residuum include receiving a feed stream that includes a residuum hydrocarbon fraction at an ebullated bed hydroconversion reactor; contacting the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product; separating, in a first separation zone, the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream; feeding the distillate stream to a bottom portion of an integrated hydrocracking/hydrofinishing reactor; and feeding the heavy hydrocarbon stream to a top portion of the hydrofinishing reactor.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: September 14, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Vinod Ramaseshan, Yufeng He, Hiren Shethna, Mohammed A. AlWohaibi
  • Publication number: 20210222074
    Abstract: A method for producing a diesel having improved cold flow properties, the method comprising the steps of introducing a crude oil to a distillation column, separating the crude oil in the distillation unit to produce a light gas oil, and a light vacuum gas oil, where the light gas oil has a T95% cut point in the range between 300 deg C. and 340 deg C., where the light vacuum gas oil has a T95% cut point in the range between 400 deg C. and 430 deg C., processing the light vacuum gas oil in the supercritical water unit to produce an upgraded vacuum gas oil, separating the upgraded vacuum gas oil in the fractionator to produce an upgraded light fraction, an upgraded light gas oil, and upgraded heavy fraction, introducing the upgraded light gas oil into a diesel pool, and blending the light gas oil into the diesel pool.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 22, 2021
    Applicant: Saudi Arabian Oil Company
    Inventors: Ki-Hyouk Choi, Vinod RAMASESHAN, Mohnnad H. ALABSI
  • Publication number: 20210147754
    Abstract: Systems and methods for crude oil separation and upgrading, which include the ability to reduce aromatic complex bottoms content in gasoline and higher-quality aromatic compounds. In some embodiments, aromatic complex bottoms are recycled for further processing. In some embodiments, aromatic complex bottoms are separated for further processing.
    Type: Application
    Filed: January 26, 2021
    Publication date: May 20, 2021
    Applicant: Saudi Arabian Oil Company
    Inventors: Omer Refa Koseoglu, Robert Peter Hodgkins, Bruce Richard Beadle, Vinod Ramaseshan, Rakan Sulaiman Bilaus
  • Publication number: 20210139393
    Abstract: Systems and methods for hydrodearylation of a hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons, the method including supplying a hydrogen feed to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; mixing the hydrogen feed with the hydrocarbon feed stream to saturate the hydrocarbon feed stream with hydrogen gas to create a hydrogen-enriched liquid hydrocarbon stream; passing the hydrogen-enriched liquid hydrocarbon stream to a hydrodearylation reactor without a separate gaseous phase of hydrogen; allowing the hydrogen-enriched liquid hydrocarbon stream to react in presence of a catalyst under specific reaction conditions to produce a product stream comprising a reduced concentration of di-aromatic compounds and an increased concentration of mono-aromatic compounds compared to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; and recovering, from the hydrodearylation reactor, a p
    Type: Application
    Filed: January 21, 2021
    Publication date: May 13, 2021
    Applicant: Saudi Arabian Oil Company
    Inventors: Omer Refa KOSEOGLU, Robert Peter HODGKINS, Bruce Richard BEADLE, Vinod RAMASESHAN
  • Patent number: 11001766
    Abstract: A method for producing a diesel having improved cold flow properties, the method comprising the steps of introducing a crude oil to a distillation column, separating the crude oil in the distillation unit to produce a light gas oil, and a light vacuum gas oil, where the light gas oil has a T95% cut point in the range between 300 deg C. and 340 deg C., where the light vacuum gas oil has a T95% cut point in the range between 400 deg C. and 430 deg C., processing the light vacuum gas oil in the supercritical water unit to produce an upgraded vacuum gas oil, separating the upgraded vacuum gas oil in the fractionator to produce an upgraded light fraction, an upgraded light gas oil, and upgraded heavy fraction, introducing the upgraded light gas oil into a diesel pool, and blending the light gas oil into the diesel pool.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: May 11, 2021
    Inventors: Ki-Hyouk Choi, Vinod Ramaseshan, Mohnnad H. Alabsi
  • Publication number: 20210130707
    Abstract: An integrated upgrading process for upgrading a heavy oil, the process comprising the steps of introducing a heavy oil to a visbreaker unit; processing the heavy oil in the visbreaker unit to produce a visbreaker product stream; feeding the visbreaker product stream to a fractionator; separating the visbreaker product stream in the fractionator to produce a bottoms stream, a gas oil stream, a naphtha stream, and a gas product stream; feeding the bottoms stream to a supercritical water unit; and processing the bottoms stream in the supercritical water unit to produce an upgraded bottoms stream.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Applicant: Saudi Arabian Oil Company
    Inventors: Ki-Hyouk CHOI, Mazin M. FATHI, Mohnnad H. ALABSI, Vinod RAMASESHAN
  • Patent number: 10934495
    Abstract: Systems and methods for crude oil separation and upgrading, which include the ability to reduce aromatic complex bottoms content in gasoline and higher-quality aromatic compounds. In some embodiments, aromatic complex bottoms are recycled for further processing. In some embodiments, aromatic complex bottoms are separated for further processing.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 2, 2021
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Omer Refa Koseoglu, Robert Peter Hodgkins, Bruce Richard Beadle, Vinod Ramaseshan, Rakan Sulaiman Bilaus
  • Patent number: 10927313
    Abstract: An integrated upgrading process for upgrading a heavy oil, the process comprising the steps of introducing a heavy oil to a visbreaker unit; processing the heavy oil in the visbreaker unit to produce a visbreaker product stream; feeding the visbreaker product stream to a fractionator; separating the visbreaker product stream in the fractionator to produce a bottoms stream, a gas oil stream, a naphtha stream, and a gas product stream; feeding the bottoms stream to a supercritical water unit; and processing the bottoms stream in the supercritical water unit to produce an upgraded bottoms stream.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: February 23, 2021
    Inventors: Ki-Hyouk Choi, Mazin M. Fathi, Mohnnad H. Alabsi, Vinod Ramaseshan
  • Publication number: 20210024841
    Abstract: A system for processing a stream including fuel oil includes an atmospheric flash column for receiving the stream as feedstock and separate the stream into an atmospheric flash distillate stream and an atmospheric flash residue stream. The system includes a vacuum flash column for receiving the atmospheric flash residue stream and separating the atmospheric flash residue stream into a vacuum flash distillate stream, a vacuum flash residue stream, and a vacuum gas oil stream. The system includes a first hydrocracking unit for receiving and processing at least a portion of the vacuum flash residue stream to produce an intermediate stream and a slurry. The system includes a second hydrocracking unit for receiving and processing the vacuum gas oil stream and the intermediate stream to produce a naphtha product and a light ends product. The system includes a pelletization unit for receiving and processing the slurry to produce a pelletized product.
    Type: Application
    Filed: April 30, 2020
    Publication date: January 28, 2021
    Inventors: Eric Wei, Vinod Ramaseshan, Donald Saunders
  • Patent number: 10899685
    Abstract: Systems and methods for hydrodearylation of a hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons, the method including supplying a hydrogen feed to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; mixing the hydrogen feed with the hydrocarbon feed stream to saturate the hydrocarbon feed stream with hydrogen gas to create a hydrogen-enriched liquid hydrocarbon stream; passing the hydrogen-enriched liquid hydrocarbon stream to a hydrodearylation reactor without a separate gaseous phase of hydrogen; allowing the hydrogen-enriched liquid hydrocarbon stream to react in presence of a catalyst under specific reaction conditions to produce a product stream comprising a reduced concentration of di-aromatic compounds and an increased concentration of mono-aromatic compounds compared to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; and recovering, from the hydrodearylation reactor, a p
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: January 26, 2021
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Omer Refa Koseoglu, Robert Peter Hodgkins, Bruce Richard Beadle, Vinod Ramaseshan
  • Patent number: 10836967
    Abstract: A system for co-processing crude oil with residuum includes an ebullated bed hydrocracking unit; an atmospheric distillation column fluidly coupled to the ebullated bed hydrocracking unit; a vacuum distillation column fluidly coupled to the atmospheric distillation column and the ebullated bed hydrocracking unit; and a deasphalting unit fluidly coupled to the vacuum distillation column and the ebullated bed hydrocracking unit; and a control system communicably coupled to the ebullated bed hydrocracking unit, the atmospheric distillation column, the vacuum distillation column, and the deasphalting unit. The control system is configured to perform operations including operating the deasphalting unit to produce a first cut that includes deasphalting oil, a second cut that includes resin oil, and a third cut that includes asphaltene.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: November 17, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Mohammed A. Al-Wohaibi, Vinod Ramaseshan, Marcus J. Killingworth, Hisham T. Al-Bassam