Patents by Inventor Ravichander Narayanaswamy

Ravichander Narayanaswamy 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: 10858593
    Abstract: A process for producing cumene comprising converting plastics to hydrocarbon liquid and pyrolysis gas; feeding hydrocarbon liquid to hydroprocessor to yield hydrocarbon product and first gas stream; feeding hydrocarbon product to reforming unit to produce reforming product, second gas stream, and hydrogen; separating reforming product into non-aromatics recycle stream and second aromatics stream (C6+ aromatics); recycling non-aromatics recycle stream to reforming unit; separating second aromatics stream into benzene, C7, C8, C9, C10, and C11+ aromatics; contacting C7, C9, and/or C10 aromatics with a disproportionation&transalkylation catalyst/H2 to yield benzene&xylenes; conveying C11+ aromatics to hydroprocessor; introducing pyrolysis gas, first and/or second gas stream to first separator to produce first propylene stream, first C2&C4 unsaturated stream, and saturated gas (H2 and C1-4 saturated hydrocarbons); introducing first C2&C4 unsaturated stream to metathesis reactor to produce second p
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: December 8, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Krishna Kumar Ramamurthy, Ravichander Narayanaswamy, Venkata Ramanarayanan Ganapathy Bhotla, Alexander Stanislaus, Santosh Ganji
  • Patent number: 10829696
    Abstract: A process for dechlorination of a hydrocarbon stream and/or a hydrocarbon stream precursor comprising introducing the hydrocarbon stream and/or hydrocarbon stream precursor, a first zeolitic catalyst, and a stripping gas to a devolatilization extruder (DE) to produce an extruder effluent, wherein the hydrocarbon stream and/or hydrocarbon stream precursor comprises one or more chloride compounds in an amount of equal to or greater than about 10 ppm chloride, based on the total weight of the hydrocarbon stream and/or hydrocarbon stream precursor, and wherein the extruder effluent comprises one or more chloride compounds in an amount of less than the chloride amount in the hydrocarbon stream and/or hydrocarbon stream precursor.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: November 10, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Mohammad Javeed, Alexander Stanislaus, Abrar A. Hakeem, Girish Koripelly, Ravichander Narayanaswamy, Krishna Kumar Ramamurthy
  • Patent number: 10787401
    Abstract: The present invention relates to an integrated process to convert crude oil into petrochemical products comprising crude oil distillation, aromatic ring opening, and olefins synthesis, which process comprises subjecting a hydrocarbon feed to aromatic ring opening to produce LPG and subjecting the LPG produced in the integrated process to olefins synthesis. Furthermore, the present invention relates to a process installation to convert crude oil into petrochemical products comprising a crude distillation unit comprising an inlet for crude oil and at least one outlet for kerosene and/or gasoil; an aromatic ring opening unit comprising an inlet for a hydrocarbon feed to aromatic ring opening and an outlet for LPG; and a unit for the olefins synthesis comprising an inlet for LPG produced by the integrated petrochemical process installation and an outlet for olefins.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: September 29, 2020
    Assignees: SAUDI BASIC INDUSTRIES CORPORATION, SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Andrew Mark Ward, Ravichander Narayanaswamy, Vijayanand Rajagopalan, Arno Johannes Maria Oprins, Egidius Jacoba Maria Schaerlaeckens, Raul Velasco Pelaez
  • Patent number: 10717936
    Abstract: A process for processing mixed plastics comprising simultaneous pyrolysis and dechlorination of the mixed plastics, the process comprising contacting the mixed plastics with a zeolitic catalyst in a pyrolysis unit to produce a hydrocarbon product comprising a gas phase and a liquid phase; and separating the hydrocarbon product into a hydrocarbon gas stream and a hydrocarbon liquid stream, wherein the hydrocarbon gas stream comprises at least a portion of the gas phase of the hydrocarbon product, wherein the hydrocarbon liquid stream comprises at least a portion of the liquid phase of the hydrocarbon product, wherein the hydrocarbon liquid stream comprises one or more chloride compounds in an amount of less than about 100 ppmw chloride, based on the total weight of the hydrocarbon liquid stream, and wherein the hydrocarbon liquid stream is characterized by a viscosity of less than about 400 cP at a temperature of 300° C.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: July 21, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Alexander Stanislaus, Ravichander Narayanaswamy, Krishna Kumar Ramamurthy, Santosh Ganji, Abrar A. Hakeem, Ashim Kumar Ghosh, Girish Koripelly, Mohammad Javeed
  • Patent number: 10676681
    Abstract: The present invention relates to an integrated process to convert crude oil into petrochemical products comprising crude oil distillation, hydrocracking and olefins synthesis, which process comprises subjecting a hydrocracker feed to hydrocracking to produce LPG and BTX and subjecting the LPG produced in the process to olefins synthesis. Furthermore, the present invention relates to a process installation to convert crude oil into petrochemical products comprising: a crude distillation unit comprising an inlet for crude oil and at least one outlet for one or more of naphtha, kerosene and gasoil; a hydrocracker comprising an inlet for a hydrocracker feed, an outlet for LPG and an outlet for BTX; and a unit for olefins synthesis comprising an inlet for LPG produced by the integrated petrochemical process installation and an outlet for olefins.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: June 9, 2020
    Assignees: SAUDI BASIC INDUSTRIES CORPORATION, SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Andrew Mark Ward, Ravichander Narayanaswamy, Arno Johannes Maria Oprins, Vijayanand Rajagopalan, Egidius Jacoba Maria Schaerlaeckens, Raul Velasco Pelaez
  • Patent number: 10563130
    Abstract: Disclosed is a method for producing olefins and aromatic compounds from a hydrogen lean carbon containing feed, the method comprising hydropyrolyzing the hydrogen lean carbon containing feed in the presence of a hydrogen donor feed under reaction conditions sufficient to produce a product comprising olefins and aromatic compounds or a hydrocarbonaceous stream, wherein the hydrocarbonaceous stream is further processed into olefins and aromatic compounds, wherein the olefins and aromatic compounds from (i) or the hydrocarbonaceous stream from (ii) are each obtained by hydrogenation of the hydrogen lean carbon containing feed with the hydrogen donor feed and cracking of carbonaceous compounds comprised in the hydrogenated feed, and wherein the hydrogen donor feed comprises a compound that donates hydrogen to carbonaceous compounds in the hydrogen lean feed.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: February 18, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Ravichander Narayanaswamy, Krishna Kumar Ramamurthy, Sreenivasan Perinkulam Subramanian
  • Patent number: 10563136
    Abstract: The present invention relates to a process for producing BTX, comprising pyrolysis, aromatic ring opening and BTX recovery. Furthermore, the present invention relates to a process installation to convert a pyrolysis feedstream into BTX, comprising a pyrolysis unit, an aromatic ring opening and a BTX recovery unit.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: February 18, 2020
    Assignees: SAUDI BASIC INDUSTRIES CORPORATION, SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Raul Velasco Pelaez, Ravichander Narayanaswamy, Vijayanand Rajagopalan, Arno Johannes Maria Oprins, Andrew Mark Ward, Egidius Jacoba Maria Schaerlaeckens, Joris Van Willigenburg
  • Publication number: 20200017772
    Abstract: A process for producing propylene and cumene comprising converting plastics to hydrocarbon liquid and pyrolysis gas in pyrolyzer; feeding hydrocarbon liquid to hydroprocessor to yield hydrocarbon product and first gas stream; introducing hydrocarbon product to second separator to produce first C6 aromatics and refined product; feeding refined product to steam cracker to produce steam cracker product; introducing steam cracker product to third separator to produce second C6 aromatics, third propylene stream, second C2&C4 unsaturated stream, C1-4 saturated gas, and balance hydrocarbons product; introducing pyrolysis gas and/or first gas stream to first separator to produce first propylene stream, first C2&C4 unsaturated stream, and saturated gas stream; feeding first and/or second C2&C4 unsaturated stream to metathesis reactor to produce second propylene stream; feeding first and/or second C6 aromatics, and first, second, and/or third propylene stream to alkylation unit to produce cumene; and convey
    Type: Application
    Filed: January 3, 2018
    Publication date: January 16, 2020
    Inventors: Krishna Kumar RAMAMURTHY, Ravichander NARAYANASWAMY, Venkata Ramanarayanan GANAPATHY BHOTLA, Alexander STANISLAUS, Santosh GANJI
  • Publication number: 20200017773
    Abstract: A process for producing benzene and xylenes comprising introducing hydrocarbon liquid stream to hydroprocessor to yield first gas stream and hydrocarbon product (C5+); optionally introducing hydrocarbon product to first aromatics separating unit to produce saturated hydrocarbons (C5+) and first aromatics stream (C6+); feeding hydrocarbon product and/or saturated hydrocarbons to reformer to produce reformer product, second gas stream, and hydrogen stream; introducing reformer product to second aromatics separating unit to produce a non-aromatics recycle stream and second aromatics stream comprising C6+ aromatics; recycling non-aromatics recycle stream to reformer; introducing first aromatics stream and/or second aromatics stream to third aromatics separating unit to produce first C6 aromatics (benzene), C7 aromatics (toluene), C8 aromatics (xylenesðylbenzene), C9
    Type: Application
    Filed: January 3, 2018
    Publication date: January 16, 2020
    Inventors: Krishna Kumar RAMAMURTHY, Ravichander NARAYANASWAMY, Venkata Ramanarayanan GANAPATHY BHOTLA, Alexander STANISLAUS, Santosh GANJI
  • Patent number: 10513476
    Abstract: The present invention relates to an integrated process to convert crude oil into petrochemical products comprising crude oil distillation, aromatic ring opening, and olefins synthesis, which process comprises subjecting a hydrocarbon feed to aromatic ring opening to produce LPG and subjecting the LPG produced in the integrated process to olefins synthesis. Furthermore, the present invention relates to a process installation to convert crude oil into petrochemical products comprising a crude distillation unit comprising an inlet for crude oil and at least one outlet for kerosene and/or gasoil; an aromatic ring opening unit comprising an inlet for a hydrocarbon feed to aromatic ring opening and an outlet for LPG; and a unit for the olefins synthesis comprising an inlet for LPG produced by the integrated petrochemical process installation and an outlet for olefins.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: December 24, 2019
    Assignees: SAUDI BASIC INDUSTRIES CORPORATION, SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Andrew Mark Ward, Ravichander Narayanaswamy, Vijayanand Rajagopalan, Arno Johannes Maria Oprins, Egidius Jacoba Maria Schaerlaeckens, Raul Velasco Pelaez
  • Patent number: 10513661
    Abstract: A process for processing plastic waste comprising converting plastic waste to hydrocarbon liquid and a first C1-4 gas; contacting hydrocarbon liquid with a first hydroprocessing catalyst in hydroprocessing unit to yield a second C1-4 gas and a first hydrocarbon product comprising C5+ liquid hydrocarbons; introducing the first hydrocarbon product to a first separating unit to produce treated hydrocarbon stream comprising C5-8 hydrocarbons and a first heavies stream comprising C9+ hydrocarbons; contacting the first heavies stream with a second hydroprocessing catalyst in hydrodealkylating unit to yield a second hydrocarbon product comprising C5+ liquid hydrocarbons and a third C1-4 gas; conveying the second hydrocarbon product to the first separating unit; feeding treated hydrocarbon stream to steam cracker to produce steam cracker product; separating steam cracker product into olefin gas, saturated hydrocarbons gas, aromatics, and a second heavies stream; and conveying the second heavies stream to hydroprocess
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: December 24, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Ravichander Narayanaswamy, Krishna Kumar Ramamurthy, Abrar A. Hakeem, Lara Galan-Sanchez, Nicolas Goyheneix, Santosh Ganji
  • Publication number: 20190322952
    Abstract: The present invention relates to process for cracking a hydrocarbon feedstock in a steam cracker unit, comprising the following steps of: feeding a hydrocarbon feedstock to a first hydrocracking unit, feeding the hydrocarbon feedstock thus cracked to a separation unit for obtaining a stream high in paraffins and naphtenes, a stream high in heavy aromatics and a stream high in mono-aromatics feeding the stream high in paraffins and naphtenes to a second hydrocracking unit, wherein the process conditions in the first hydrocracking unit differ from the process conditions in the second hydrocracking unit, separating the stream thus hydrocracked in the second hydrocracking unit in a high content aromatics stream and gaseous stream comprising C2-C4 paraffins, hydrogen and methane, feeding the gaseous stream to a steam cracker unit.
    Type: Application
    Filed: May 6, 2019
    Publication date: October 24, 2019
    Inventors: Andrew Mark WARD, Arno Johannes Maria OPRINS, Thomas Hubertus Maria HOUSMANS, Ravichander NARAYANASWAMY, Vijayanand RAJAGOPALAN, Lakshmikant Suryakant POWALE
  • Patent number: 10442997
    Abstract: Disclosed are methods of reduction of chlorine in pyrolysis products derived from a mixed plastics stream. Methods may comprise: (a) causing pyrolysis of a plastic feedstock to produce a first stream of C1-C4 gaseous hydrocarbons and light gas olefins and a second stream comprising the remaining pyrolysis components. The second stream and hydrogen gas may be fed into a hydrocracker to produce a third stream of gaseous C1-C4 hydrocarbon gases and a fourth stream comprising the remaining hydrocracker components. The fourth stream may be fed to either (i) a steam cracker to produce a fifth stream comprising C1-C4 gaseous hydrocarbons and light gas olefins, a sixth stream comprising C6-C8 hydrocarbons and a seventh stream comprising hydrocarbons heavier than C8; or (ii) a fluidized catalytic cracker to produce an eighth stream comprising C1-C4 gases and light gas olefins and a ninth stream comprising hydrocarbons that are C5 or greater.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: October 15, 2019
    Assignee: SABIC Global Technologies B.V.
    Inventors: Ravichander Narayanaswamy, Krishna Kumar Ramamurthy, Nicolas Goyheneix, Lara Galan-Sanchez
  • Publication number: 20190299491
    Abstract: A process for processing mixed plastics comprising simultaneous pyrolysis and dechlorination of the mixed plastics, the process comprising contacting the mixed plastics with a zeolitic catalyst in a pyrolysis unit to produce a hydrocarbon product comprising a gas phase and a liquid phase; and separating the hydrocarbon product into a hydrocarbon gas stream and a hydrocarbon liquid stream, wherein the hydrocarbon gas stream comprises at least a portion of the gas phase of the hydrocarbon product, wherein the hydrocarbon liquid stream comprises at least a portion of the liquid phase of the hydrocarbon product, wherein the hydrocarbon liquid stream comprises one or more chloride compounds in an amount of less than about 100 ppmw chloride, based on the total weight of the hydrocarbon liquid stream, and wherein the hydrocarbon liquid stream is characterized by a viscosity of less than about 400 cP at a temperature of 300° C.
    Type: Application
    Filed: July 17, 2017
    Publication date: October 3, 2019
    Inventors: Alexander STANISLAUS, Ravichander NARAYANASWAMY, Krishna Kumar RAMAMURTHY, Santosh GANJI, Abrar A. HAKEEM, Ashim Kumar GHOSH, Girish KORIPELLY, Mohammad JAVEED
  • Patent number: 10407629
    Abstract: The present invention relates to an integrated process to convert crude oil into petrochemical products comprising crude oil distillation, hydrocracking, aromatization and olefins synthesis. Furthermore, the present invention relates to a process installation to convert crude oil into petrochemical products comprising a crude distillation unit, a hydrocracker, an aromatization unit and a unit for olefins synthesis.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: September 10, 2019
    Assignees: SAUDI BASIC INDUSTRIES CORPORATION, SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Arno Johannes Maria Oprins, Ravichander Narayanaswamy, Vijayanand Rajagopalan, Andrew Mark Ward, Joris van Willigenburg, Raul Velasco Pelaez, Egidius Jacoba Maria Schaerlaeckens
  • Publication number: 20190270939
    Abstract: A process for dechlorination of a hydrocarbon stream and/or a hydrocarbon stream precursor comprising introducing the hydrocarbon stream and/or hydrocarbon stream precursor, a first zeolitic catalyst, and a stripping gas to a devolatilization extruder (DE) to produce an extruder effluent, wherein the hydrocarbon stream and/or hydrocarbon stream precursor comprises one or more chloride compounds in an amount of equal to or greater than about 10 ppm chloride, based on the total weight of the hydrocarbon stream and/or hydrocarbon stream precursor, and wherein the extruder effluent comprises one or more chloride compounds in an amount of less than the chloride amount in the hydrocarbon stream and/or hydrocarbon stream precursor.
    Type: Application
    Filed: July 17, 2017
    Publication date: September 5, 2019
    Inventors: Mohammad JAVEED, Alexander STANISLAUS, Abrar A. HAKEEM, Girish KORIPELLY, Ravichander NARAYANASWAMY, Krishna Kumar RAMAMURTHY
  • Publication number: 20190233744
    Abstract: A process for hydrodealkylating a hydrocarbon stream comprising (a) contacting the hydrocarbon stream with a hydroprocessing catalyst in a hydroprocessing reactor in the presence of hydrogen to yield a hydrocarbon product, wherein the hydrocarbon stream contains C9+ aromatic hydrocarbons; and (b) recovering a treated hydrocarbon stream from the hydrocarbon product, wherein the treated hydrocarbon stream comprises C9+ aromatic hydrocarbons, wherein an amount of C9+ aromatic hydrocarbons in the treated hydrocarbon stream is less than an amount of C9+ aromatic hydrocarbons in the hydrocarbon stream due to hydrodealkylating of at least a portion of C9+ aromatic hydrocarbons from the hydrocarbon stream during the step (a) of contacting.
    Type: Application
    Filed: June 8, 2017
    Publication date: August 1, 2019
    Inventors: Ravichander NARAYANASWAMY, Krishna Kumar RAMAMURTHY
  • Publication number: 20190225562
    Abstract: The present invention relates to an integrated process to convert crude oil into petrochemical products comprising crude oil distillation, aromatic ring opening, and olefins synthesis, which process comprises subjecting a hydrocarbon feed to aromatic ring opening to produce LPG and subjecting the LPG produced in the integrated process to olefins synthesis. Furthermore, the present invention relates to a process installation to convert crude oil into petrochemical products comprising a crude distillation unit comprising an inlet for crude oil and at least one outlet for kerosene and/or gasoil; an aromatic ring opening unit comprising an inlet for a hydrocarbon feed to aromatic ring opening and an outlet for LPG; and a unit for the olefins synthesis comprising an inlet for LPG produced by the integrated petrochemical process installation and an outlet for olefins.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Inventors: Andrew Mark WARD, Ravichander NARAYANASWAMY, Vijayanand RAJAGOPALAN, Arno Johannes Maria OPRINS, Egidius Jacoba Maria SCHAERLAECKENS, Raul VELASCO PELAEZ
  • Publication number: 20190177626
    Abstract: A process for producing olefins and aromatics comprising converting plastics to a hydrocarbon product comprising a gas phase and a liquid phase in a pyrolysis unit; separating the hydrocarbon product into a hydrocarbon gas stream comprising the gas phase and a hydrocarbon liquid stream comprising the liquid phase; feeding the hydrocarbon gas stream to a gas steam cracker to produce a gas steam cracker product comprising olefins, wherein an olefins amount in the gas steam cracker product is greater than in the hydrocarbon gas stream; separating the hydrocarbon liquid stream into a first fraction (b.p.<300° C.) and a second fraction (b.p>300° C.); feeding the first fraction to a liquid steam cracker to produce a liquid steam cracker product comprising olefins and aromatics, wherein an olefins amount in the liquid steam cracker product is greater than in the first fraction; and recycling the second fraction to the pyrolysis unit.
    Type: Application
    Filed: October 4, 2017
    Publication date: June 13, 2019
    Inventors: Krishna Kumar RAMAMURTHY, Nicolas GOYHENEIX, Ravichander NARAYANASWAMY, Lara GALAN-SANCHEZ
  • Patent number: 10316259
    Abstract: A process for converting hydrocarbon feedstock into olefins and BTX including feeding a hydrocarbon feedstock to a first hydrocracking unit, feeding effluent from the first hydrocracking unit to a first separation section to be separated, feeding a steam including propane to a dehydrogenation unit, and feeding effluent from the dehydrogenation unit to a second separation section.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: June 11, 2019
    Assignees: SAUDI BASIC INDUSTRIES CORPORATION, SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Christoph Dittrich, Joris Van Willigenburg, Raúl Velasco Pelaez, Egidius Jacoba Maria Schaerlaeckens, Vijayanand Rajagopalan, Andrew Mark Ward, Arno Johannes Maria Oprins, Ravichander Narayanaswamy