Patents by Inventor Kareemuddin Mahaboob Shaik

Kareemuddin Mahaboob Shaik 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: 11613717
    Abstract: 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: Grant
    Filed: July 27, 2018
    Date of Patent: March 28, 2023
    Assignees: SABIC GLOBAL TECHNOLOGIES B.V., SAUDI ARABIAN OIL COMPANY
    Inventors: Guillermo Leal, Kareemuddin Mahaboob Shaik, Mohammed Bismillah Ansari, Hiren Shethna, Zhonglin Zhang
  • Patent number: 11518951
    Abstract: A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a hydrogenation unit producing a hydrogenated stream; passing the hydrogenated stream through a distillation unit producing a first stream and a second stream; producing an isobutylene stream by passing the first stream through a molecular sieve unit; passing the isobutylene stream to a hydration unit as a feedstock for the fuel additive; and forming the fuel additive in the hydration unit.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: December 6, 2022
    Assignees: SABIC GLOBAL TECHNOLOGIES B.V., SAUDI ARABIAN OIL COMPANY
    Inventors: Guillermo Leal, Naif Mohammed Al-Naddah Al-Otaibi, Kareemuddin Mahaboob Shaik, Mohammed Bismillah Ansari, Vijay Dinkar Bodas
  • Patent number: 11427518
    Abstract: A method of producing a fuel additive includes producing a first product stream comprising butadiene by passing a feed stream comprising C4 hydrocarbons through a steam cracker; transforming greater than or equal to 90 weight % of the butadiene in the first product stream into a second product stream by passing the first product stream through a first hydrogenation unit, wherein the second product stream comprises 1-butene, 2-butene, n-butane, isobutylene, isobutane, or a combination thereof; and converting the second product stream into the fuel additive by passing the second product stream through a fuel additive synthesis unit with an acid catalyst.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 30, 2022
    Assignees: SAUDI ARABIAN OIL COMPANY, SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Guillermo Leal, Naif Mohammed Al-Naddah Al-Otaibi, Mohammed Bismillah Ansari, Kareemuddin Mahaboob Shaik, Hiren Shethna, Zhonglin Zhang
  • Patent number: 11414611
    Abstract: 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 butadiene hydrogenation unit transforming greater than or equal to 90% by weight of the butadiene to 1-butene and 2-butene, preferably greater than or equal to 93%, preferably, greater than or equal to 94%, more preferably, greater than or equal to 95% producing a second process stream; passing the second process stream through a hydration unit producing a third process stream and the fuel additive; passing the third process stream through a total hydrogenation unit producing a hydrogenated stream; and passing the hydrogenated stream to a cracker unit.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: August 16, 2022
    Assignees: SABIC GLOBAL TECHNOLOGIES B.V., SAUDI ARABIAN OIL COMPANY
    Inventors: Guillermo Leal, Kareemuddin Mahaboob Shaik, Naif Mohammed Al-Naddah Al-Otaibi, Hiren Shethna, Mohammed Bismillah Ansari, Zhonglin Zhang
  • Patent number: 11407952
    Abstract: A method of producing a fuel additive includes: passing a first process stream comprising C4 hydrocarbons through a methyl tertiary butyl ether synthesis unit producing a first recycle stream; passing the first recycle stream through a hydration unit producing the fuel additive and a second recycle stream; passing the second recycle stream through a recycle hydrogenation unit and a deisobutanizer unit; and recycling the second recycle stream to the methyl tertiary butyl ether synthesis unit.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: August 9, 2022
    Assignees: SAUDI ARABIAN OIL COMPANY, SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Guillermo Leal, Mohammed Bismillah Ansari, Kareemuddin Mahaboob Shaik, Hiren Shethna, Zhonglin Zhang
  • Publication number: 20220185750
    Abstract: A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a first hydrogenation unit producing a first process stream; passing the first process stream through a distillation unit; withdrawing a 2-butene stream from the distillation unit: passing the 2-butene stream through a second hydrogenation unit producing a 1-butene stream; passing at least a portion of the 1-butene stream through a separation unit; and passing the 1-butene stream through a hydration unit producing the fuel additive.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 16, 2022
    Inventors: Guillermo Leal, Naif Mohammed Al-Naddah Al-Otaibi, Kareemuddin Mahaboob Shaik, Mohammed Bismillah Ansari, Vijay Dinkar Bodas
  • Patent number: 11248181
    Abstract: A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a butadiene extraction unit producing a first process stream; passing the first process stream through a methyl tertiary butyl ether unit producing a second process stream and a methyl tertiary butyl ether product; passing the second process stream through a hydration unit producing the fuel additive and a recycle stream; passing the recycle stream through a hydrogenation unit; and recycling the recycle stream to a steam cracker unit and/or to the feed stream
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 15, 2022
    Assignees: SABIC GLOBAL TECHNOLOGIES B.V., SAUDI ARABIAN OIL COMPANY
    Inventors: Guillermo Leal, Kareemuddin Mahaboob Shaik, Hiren Shethna, Naif Mohammed Al-Naddah Al-Otaibi, Mohammed Bismillah Ansari, Zhonglin Zhang
  • Publication number: 20210171848
    Abstract: 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 butadiene hydrogenation unit transforming greater than or equal to 90% by weight of the butadiene to 1-butene and 2-butene, preferably greater than or equal to 93%, preferably, greater than or equal to 94%, more preferably, greater than or equal to 95% producing a second process stream; passing the second process stream through a hydration unit producing a third process stream and the fuel additive; passing the third process stream through a total hydrogenation unit producing a hydrogenated stream; and passing the hydrogenated stream to a cracker unit.
    Type: Application
    Filed: April 18, 2019
    Publication date: June 10, 2021
    Inventors: Guillermo Leal, Kareemuddin Mahaboob Shaik, Naif Mohammed Al-Naddah Al-Otaibi, Hiren Shethna, Mohammed Bismillah Ansari, Zhonglin Zhang
  • Publication number: 20210155862
    Abstract: A method of producing a fuel additive includes: passing a first process stream comprising C4 hydrocarbons through a methyl tertiary butyl ether synthesis unit producing a first recycle stream; passing the first recycle stream through a hydration unit producing the fuel additive and a second recycle stream; passing the second recycle stream through a recycle hydrogenation unit and a deisobutanizer unit; and recycling the second recycle stream to the methyl tertiary butyl ether synthesis unit.
    Type: Application
    Filed: April 18, 2019
    Publication date: May 27, 2021
    Inventors: Guillermo Leal, Mohammed Bismillah Ansari, Kareemuddin Mahaboob Shaik, Hiren Shethna, Zhonglin Zhang
  • Publication number: 20210024837
    Abstract: A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a butadiene extraction unit producing a first process stream; passing the first process stream through a methyl tertiary butyl ether unit producing a second process stream and a methyl tertiary butyl ether product; passing the second process stream through a hydration unit producing the fuel additive and a recycle stream; passing the recycle stream through a hydrogenation unit; and recycling the recycle stream to a steam cracker unit and/or to the feed stream
    Type: Application
    Filed: April 11, 2019
    Publication date: January 28, 2021
    Inventors: Guillermo Leal, Kareemuddin Mahaboob Shaik, Hiren Shethna, Naif Mohammed Al-Naddah Al-Otaibi, Mohammed Bismillah Ansari, Zhonglin Zhang
  • Publication number: 20210024843
    Abstract: A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a hydrogenation unit producing a hydrogenated stream; passing the hydrogenated stream through a distillation unit producing a first stream and a second stream; producing an isobutylene stream by passing the first stream through a molecular sieve unit; passing the isobutylene stream to a hydration unit as a feedstock for the fuel additive; and forming the fuel additive in the hydration unit.
    Type: Application
    Filed: March 18, 2019
    Publication date: January 28, 2021
    Inventors: Guillermo Leal, Naif Mohammed Al-Naddah Al-Otaibi, Kareemuddin Mahaboob Shaik, Mohammed Bismillah Ansari, Vijay Dinkar Bodas
  • Publication number: 20210002185
    Abstract: A method of producing a fuel additive includes producing a first product stream comprising butadiene by passing a feed stream comprising C4 hydrocarbons through a steam cracker; transforming greater than or equal to 90 weight % of the butadiene in the first product stream into a second product stream by passing the first product stream through a first hydrogenation unit, wherein the second product stream comprises 1-butene, 2-butene, n-butane, isobutylene, isobutane, or a combination thereof; and converting the second product stream into the fuel additive by passing the second product stream through a fuel additive synthesis unit with an acid catalyst.
    Type: Application
    Filed: March 18, 2019
    Publication date: January 7, 2021
    Inventors: Guillermo Leal, Naif Mohammed Al-Naddah Al-Otaibi, Mohammed Bismillah Ansari, Kareemuddin Mahaboob Shaik, Hiren Shethna, Zhonglin Zhang
  • Publication number: 20200157450
    Abstract: 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: Application
    Filed: July 27, 2018
    Publication date: May 21, 2020
    Inventors: Guillermo Leal, Kareemuddin Mahaboob Shaik, Mohammed Bismillah Ansari, Hiren Shethna, Zhonglin Zhang
  • Patent number: 10022698
    Abstract: An ethylene oligomerization system is useful for creating 1-butene from ethylene in the presence of an ethylene oligomerization catalyst. The ethylene oligomerization system includes an internal baffle single pass reactor, a separation system and an external motion driver. The external motion driver is operable to induce unsteadiness in the flow of the process fluid contained in the internal baffle single pass reactor by transferring motion into the process fluid. An ethylene oligomerization process is useful for creating a refined 1-butene product from ethylene using the ethylene oligomerization system.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: July 17, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Kareemuddin Mahaboob Shaik, Wei Xu
  • Publication number: 20170151547
    Abstract: An ethylene oligomerization system is useful for creating 1-butene from ethylene in the presence of an ethylene oligomerization catalyst. The ethylene oligomerization system includes an internal baffle single pass reactor, a separation system and an external motion driver. The external motion driver is operable to induce unsteadiness in the flow of the process fluid contained in the internal baffle single pass reactor by transferring motion into the process fluid. An ethylene oligomerization process is useful for creating a refined 1-butene product from ethylene using the ethylene oligomerization system.
    Type: Application
    Filed: February 9, 2017
    Publication date: June 1, 2017
    Applicant: Saudi Arabian Oil Company
    Inventors: Kareemuddin Mahaboob Shaik, Wei Xu
  • Patent number: 9598329
    Abstract: An ethylene oligomerization system is useful for creating 1-butene from ethylene in the presence of an ethylene oligomerization catalyst. The ethylene oligomerization system includes an internal baffle single pass reactor, a separation system and an exterior motion driver. The exterior motion driver is operable to induce unsteadiness in the flow of the process fluid contained in the internal baffle single pass reactor by transferring motion into the process fluid. An ethylene oligomerization process is useful for creating a refined 1-butene product from ethylene using the ethylene oligomerization system.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: March 21, 2017
    Assignee: Saudi Arabian Oil Company
    Inventors: Kareemuddin Mahaboob Shaik, Wei Xu
  • Publication number: 20130303817
    Abstract: An ethylene oligomerization system is useful for creating 1-butene from ethylene in the presence of an ethylene oligomerization catalyst. The ethylene oligomerization system includes an internal baffle single pass reactor, a separation system and an exterior motion driver. The exterior motion driver is operable to induce unsteadiness in the flow of the process fluid contained in the internal baffle single pass reactor by transferring motion into the process fluid. An ethylene oligomerization process is useful for creating a refined 1-butene product from ethylene using the ethylene oligomerization system.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 14, 2013
    Applicant: Saudi Arabian Oil Company
    Inventors: Kareemuddin Mahaboob Shaik, Wei Xu