Patents by Inventor Kareemuddin M. Shaik

Kareemuddin M. 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: 11332684
    Abstract: An octane-enhancing additive includes a mixed butanol composition, sec-butyl ether, methanol, methyl tert-butyl ether, and a C4-dimer, the mixed butanol composition comprising sec-butanol and tert-butanol, and the C4-dimer comprising di-isobutylene, 2,2,4 trimethylpentane, 2,3,3 trimethylpentane, or a combination comprising at least one of the foregoing.
    Type: Grant
    Filed: February 24, 2018
    Date of Patent: May 17, 2022
    Assignees: SABIC GLOBAL TECHNOLOGIES B.V., SAUDI ARABIAN OIL COMPANY
    Inventors: Guillermo Leal, Kareemuddin M. Shaik, Mohammed Bismillah Ansari, Hassan Babiker, Somak Paul, Kamalakar Gunda
  • Publication number: 20210139803
    Abstract: An octane-enhancing additive includes a mixed butanol composition, sec-butyl ether, methanol, methyl tert-butyl ether, and a C4-dimer, the mixed butanol composition comprising sec-butanol and tert-butanol, and the C4-dimer comprising di-isobutylene, 2,2,4 trimethylpentane, 2,3,3 trimethylpentane, or a combination comprising at least one of the foregoing.
    Type: Application
    Filed: February 24, 2018
    Publication date: May 13, 2021
    Inventors: Guillermo LEAL, Kareemuddin M. SHAIK, Mohammed Bismillah ANSARI, Hassan BABIKER, Somak PAUL, Kamalakar GUNDA
  • Patent number: 10370612
    Abstract: Methods for producing alcohols and oligomers contemporaneously from a hydrocarbon feed containing mixed butenes using an acid based catalyst are provided. Additionally, methods for producing fuel compositions having alcohols and oligomers prepared from mixed olefins are also provided as embodiments of the present invention. In certain embodiments, the catalyst can include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: August 6, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Wei Xu, Thamer A. Mohammad, Aadesh Harale, Kareemuddin M. Shaik
  • Patent number: 10155707
    Abstract: A butanol production system and method for producing refined mixed butanols includes an internal baffle single pass reactor having an internal fluid conduit defined by an internal wall. The internal fluid conduit contains a process fluid comprising water, mixed butenes and mixed butanols, to form a crude product. Internal flow baffles are located along a length of the internal fluid conduit. Baffled cells are defined at an outer diameter by the internal wall and at ends by the internal flow baffles. A separation system separates water and mixed butenes from the crude product to produce refined mixed butanols. An oscillator assembly is coupled to the internal baffle single pass reactor and has a reciprocating oscillator head selectively movable in a back and forth linear motion, and in communication with the process fluid such that the process fluid undergoes a general sinusoidal movement along the internal baffle single pass reactor.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: December 18, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Abeer Arjah, Kareemuddin M. Shaik, Wei Xu
  • Patent number: 10041016
    Abstract: A two-step process for the oligomerization and hydration of a mixed butenes feed is provided and is implemented in a two-stage system. The two-step process yields a product consisting of diisobutenes (DIBs) and mixed butanols. The DIBs are produced via the selective oligomerization of isobutene in a first stage and the mixed butanols are produced via the hydration, in a second stage, of mixed butenes that remain unreacted in the first stage.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: August 7, 2018
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Kareemuddin M. Shaik, Wei Xu, Thamer Mohammed, Hassan Babiker, Gautam Tavanappa Kalghatgi
  • Patent number: 9902677
    Abstract: Systems and methods for liquid-phase oxidation of an aromatic feedstock containing at least one oxidizable aromatic compound may incorporate an oxidation reactor, a separation apparatus in fluidic communication with the oxidation reactor, a solids treatment unit, and a product recovery unit in fluidic communication with the separation apparatus. The oxidation reactor may conduct liquid-phase oxidation of the oxidizable aromatic compound in the aromatic feedstock in the presence of a manganate salt to form a slurry containing liquid product and solid manganese dioxide. The separation apparatus may accept the slurry from the oxidation reactor and separate the liquid component from the solid component. The solids treatment unit accepts the solid component from the separation apparatus, treats the solid component with a basic liquid to oxidize the manganese dioxide in the solid component and form a regenerated manganate salt, which may be recycled back to the oxidation reactor.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: February 27, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Veera Venkata Ramakrishna Tammana, Kareemuddin M. Shaik, Guillaume Robert Jean-Francois Raynel
  • Patent number: 9796941
    Abstract: Methods for producing alcohols and oligomers contemporaneously from a hydrocarbon feed containing mixed butenes using an acid based catalyst are provided. Additionally, methods for producing fuel compositions having alcohols and oligomers prepared from mixed olefins are also provided as embodiments of the present invention. In certain embodiments, the catalyst can include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: October 24, 2017
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Wei Xu, Thamer A. Mohammad, Aadesh Harale, Kareemuddin M. Shaik
  • Patent number: 9732018
    Abstract: A process for simultaneously hydrating and oligomerizing a hydrocarbon feed comprising mixed olefins incudes the steps of: (a) introducing the hydrocarbon feed in the presence of water into a fixed bed; (b) contacting the hydrocarbon feed with a catalyst within said fixed bed reactor, where the catalyst is of the type that hydrates the mixed olefins to form mixed alcohols and oligomerizes at least a portion of the mixed olefins into oligomers to produce a first product stream that includes an organic phase and an aqueous phase; (c) introducing the first product stream into a first separator which separates the organic phase from the aqueous phase; (d) introducing the separated organic phase into a second separator which separates unreacted olefins from mixed alcohols and one or more oligomers which comprise a final product stream; and (e) introducing the separated aqueous phase into a third separator which separates an alcohol-water azeotrope component from water.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: August 15, 2017
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Kareemuddin M Shaik, Wei Xu, Ibrahim A. Abba, Thamer Mohammed, Hiren Shethna, Kadhim Abbas Mohammed
  • Publication number: 20170198231
    Abstract: Methods for producing alcohols and oligomers contemporaneously from a hydrocarbon feed containing mixed butenes using an acid based catalyst are provided. Additionally, methods for producing fuel compositions having alcohols and oligomers prepared from mixed olefins are also provided as embodiments of the present invention. In certain embodiments, the catalyst can include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.
    Type: Application
    Filed: March 29, 2017
    Publication date: July 13, 2017
    Inventors: Wei XU, Thamer A. MOHAMMAD, Aadesh HARALE, Kareemuddin M. SHAIK
  • Patent number: 9605226
    Abstract: Methods for producing alcohols and oligomers contemporaneously from a hydrocarbon feed containing mixed butenes using an acid based catalyst are provided. Additionally, methods for producing fuel compositions having alcohols and oligomers prepared from mixed olefins are also provided as embodiments of the present invention. In certain embodiments, the catalyst can include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: March 28, 2017
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Wei Xu, Thamer A. Mohammad, Aadesh Harale, Kareemuddin M. Shaik
  • Publication number: 20160289156
    Abstract: Systems and methods for liquid-phase oxidation of an aromatic feedstock containing at least one oxidizable aromatic compound may incorporate an oxidation reactor, a separation apparatus in fluidic communication with the oxidation reactor, a solids treatment unit, and a product recovery unit in fluidic communication with the separation apparatus. The oxidation reactor may conduct liquid-phase oxidation of the oxidizable aromatic compound in the aromatic feedstock in the presence of a manganate salt to form a slurry containing liquid product and solid manganese dioxide. The separation apparatus may accept the slurry from the oxidation reactor and separate the liquid component from the solid component. The solids treatment unit accepts the solid component from the separation apparatus, treats the solid component with a basic liquid to oxidize the manganese dioxide in the solid component and form a regenerated manganate salt, which may be recycled back to the oxidation reactor.
    Type: Application
    Filed: June 16, 2016
    Publication date: October 6, 2016
    Applicant: Saudi Arabian Oil Company
    Inventors: Veera Venkata Ramakrishna Tammana, Kareemuddin M. Shaik, Guillaume Robert Jean-Francois Raynel
  • Publication number: 20160272913
    Abstract: A two-step process for the oligomerization and hydration of a mixed butenes feed is provided and is implemented in a two-stage system. The two-step process yields a product consisting of diisobutenes (DIBs) and mixed butanols. The DIBs are produced via the selective oligomerization of isobutene in a first stage and the mixed butanols are produced via the hydration, in a second stage, of mixed butenes that remain unreacted in the first stage.
    Type: Application
    Filed: June 1, 2016
    Publication date: September 22, 2016
    Inventors: KAREEMUDDIN M. SHAIK, WEI XU, THAMER MOHAMMED, HASSAN BABIKER, GAUTAM TAVANAPPA KALGHATGI
  • Patent number: 9447346
    Abstract: A two-step process for the oligomerization and hydration of a mixed butenes feed is provided and is implemented in a two-stage system. The two-step process yields a product consisting of diisobutenes (DIBs) and mixed butanols. The DIBs are produced via the selective oligomerization of isobutene in a first stage and the mixed butanols are produced via the hydration, in a second stage, of mixed butenes that remain unreacted in the first stage.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: September 20, 2016
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Kareemuddin M. Shaik, Wei Xu, Thamer Mohammed, Hassan Babiker, Gautam Tavanappa Kalghatgi
  • Patent number: 9388110
    Abstract: Systems and methods for liquid-phase oxidation of an aromatic feedstock containing at least one oxidizable aromatic compound may incorporate an oxidation reactor, a separation apparatus in fluidic communication with the oxidation reactor, a solids treatment unit, and a product recovery unit in fluidic communication with the separation apparatus. The oxidation reactor may conduct liquid-phase oxidation of the oxidizable aromatic compound in the aromatic feedstock in the presence of a manganate salt to form a slurry containing liquid product and solid manganese dioxide. The separation apparatus may accept the slurry from the oxidation reactor and separate the liquid component from the solid component. The solids treatment unit accepts the solid component from the separation apparatus, treats the solid component with a basic liquid to oxidize the manganese dioxide in the solid component and form a regenerated manganate salt, which may be recycled back to the oxidation reactor.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: July 12, 2016
    Inventors: Veera Venkata Ramakrishna Tammana, Kareemuddin M. Shaik, Guillaume Robert Jean-Francois Raynel
  • Publication number: 20160115107
    Abstract: A butanol production system and method for producing refined mixed butanols includes an internal baffle single pass reactor having an internal fluid conduit defined by an internal wall. The internal fluid conduit contains a process fluid comprising water, mixed butenes and mixed butanols, to form a crude product. Internal flow baffles are located along a length of the internal fluid conduit. Baffled cells are defined at an outer diameter by the internal wall and at ends by the internal flow baffles. A separation system separates water and mixed butenes from the crude product to produce refined mixed butanols. An oscillator assembly is coupled to the internal baffle single pass reactor and has a reciprocating oscillator head selectively movable in a back and forth linear motion, and in communication with the process fluid such that the process fluid undergoes a general sinusoidal movement along the internal baffle single pass reactor.
    Type: Application
    Filed: October 9, 2015
    Publication date: April 28, 2016
    Applicant: Saudi Arabian Oil Company
    Inventors: Abeer Arjah, Kareemuddin M. Shaik, Wei Xu
  • Patent number: 9290705
    Abstract: In an FCC process and system, a whole crude oil feedstock is directly converted into light olefins and other products. The feed is separated into a high boiling fraction and a low boiling fraction, and each fraction is processed in separate FCC downflow reactors. The catalyst, combined from both downflow reactors, is regenerated in a common vessel. The low carbon content in the catalyst particles from the low boiling fraction downflow reactor is insufficient to provide the necessary heat. By combining catalyst particles from the high boiling fraction having high carbon content helps to provide additional heat for regeneration.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: March 22, 2016
    Assignee: Saudi Arabian Oil Company
    Inventors: Abdennour Bourane, Musaed Salem Al-Ghrami, Ibrahim A. Abba, Wei Xu, Kareemuddin M. Shaik
  • Patent number: 9187388
    Abstract: A butanol production system and method of producing refined mixed butanols from water and mixed butenes. The system includes an internal baffle single pass reactor, a separation system and an exterior motion driver. The reactor has baffled cells. The separations system is operable to separately selectively separate water and mixed butenes from the crude product such that a refined mixed butanols is produced. The exterior motion driver is operable to induce unsteadiness in the fluid flow of the process fluid through the reactor. A method for producing refined mixed butanols includes introducing mixed butenes, water and a butene hydration catalyst into the reactor, operating the butanol production system such that the external motion driver induces unsteadiness in the process fluid flow and the reaction of mixed butenes and water occurs in the presence of the butene hydration catalyst such that mixed butanols form.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: November 17, 2015
    Assignee: Saudi Arabian Oil Company
    Inventors: Abeer Arjah, Kareemuddin M. Shaik, Wei Xu
  • Publication number: 20150240179
    Abstract: Methods for producing alcohols and oligomers contemporaneously from a hydrocarbon feed containing mixed butenes using an acid based catalyst are provided. Additionally, methods for producing fuel compositions having alcohols and oligomers prepared from mixed olefins are also provided as embodiments of the present invention. In certain embodiments, the catalyst can include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.
    Type: Application
    Filed: March 2, 2015
    Publication date: August 27, 2015
    Inventors: Wei XU, Thamer A. Mohammad, Aadesh Harale, Kareemuddin M. Shaik
  • Publication number: 20150225320
    Abstract: A process for simultaneously hydrating and oligomerizing a hydrocarbon feed comprising mixed olefins incudes the steps of: (a) introducing the hydrocarbon feed in the presence of water into a fixed bed; (b) contacting the hydrocarbon feed with a catalyst within said fixed bed reactor, where the catalyst is of the type that hydrates the mixed olefins to form mixed alcohols and oligomerizes at least a portion of the mixed olefins into oligomers to produce a first product stream that includes an organic phase and an aqueous phase; (c) introducing the first product stream into a first separator which separates the organic phase from the aqueous phase; (d) introducing the separated organic phase into a second separator which separates unreacted olefins from mixed alcohols and one or more oligomers which comprise a final product stream; and (e) introducing the separated aqueous phase into a third separator which separates an alcohol-water azeotrope component from water.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 13, 2015
    Applicant: Saudi Arabian Oil Company
    Inventors: KAREEMUDDIN M. SHAIK, WEI XU, IBRAHIM A. ABBA, THAMER MOHAMMED, HIREN SHETHNA, KADHIM ABBAS MOHAMMED
  • Publication number: 20150166919
    Abstract: Methods for producing alcohols and oligomers contemporaneously from a hydrocarbon feed containing mixed butenes using an acid based catalyst are provided. Additionally, methods for producing fuel compositions having alcohols and oligomers prepared from mixed olefins are also provided as embodiments of the present invention. In certain embodiments, the catalyst can include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.
    Type: Application
    Filed: March 2, 2015
    Publication date: June 18, 2015
    Inventors: Wei XU, Thamer A. Mohammad, Aadesh Harale, Kareemuddin M. Shaik