Patents by Inventor Jose Atilio QUEVEDO ENRIQUEZ

Jose Atilio QUEVEDO ENRIQUEZ 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: 12275901
    Abstract: The invention relates to a process for the recovery of aliphatic hydrocarbons from a liquid stream comprising aliphatic hydrocarbons, heteroatom containing organic compounds and optionally aromatic hydrocarbons, involving a) contacting said liquid stream with a stream having a pH above 7 and comprising a washing solvent, preceded and/or followed by contacting with a stream having a pH below 7 and comprising a washing solvent; b) liquid-liquid extraction of the washed stream with an extraction solvent. Further, the invention relates to a process for the recovery of aliphatic hydrocarbons from plastics comprising the above-mentioned process; and to a process for steam cracking a hydrocarbon feed comprising aliphatic hydrocarbons as recovered in one of the above-mentioned processes.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: April 15, 2025
    Assignee: SHELL USA, INC.
    Inventors: Jean-Paul Andre Marie Joseph Ghislain Lange, Guus Van Rossum, Timothé Johannes Olthof, Kai Jürgen Fischer, Hendrik Stichter, Jose Atilio Quevedo Enriquez
  • Publication number: 20240409827
    Abstract: The invention relates to a process for converting plastics waste into pyrolysis oil for feeding to a steam cracker including the steps of: pre-washing a stream of comminuted waste plastics in a washing liquid comprising washing water and caustic solution; separating the pre-washed comminuted waste plastics to provide a stream of polyolefin-enriched washed comminuted plastics waste; thermally cracking the stream of polyolefin-enriched washed comminuted plastics waste to produce a vaporised hydrocarbon stream; condensing the vaporised hydrocarbon stream into a liquid hydrocarbon stream and gaseous hydrocarbon stream; washing the liquid hydrocarbon stream with caustic solution; separating the liquid hydrocarbon stream from the caustic solution to produce a stream of caustic-washed liquid hydrocarbon and a stream of spent caustic solution; and rinsing the caustic-washed liquid hydrocarbon stream with water; separating the rinsed liquid hydrocarbon stream from the rinsing water to produce a stream of pyrolysis oil
    Type: Application
    Filed: October 12, 2022
    Publication date: December 12, 2024
    Inventors: Guus VAN ROSSUM, Timothé Johannes OLTHOF, Jose Atilio QUEVEDO ENRIQUEZ
  • Patent number: 11964872
    Abstract: A process for converting carbon dioxide and hydrogen into a product stream comprising carbon monoxide, water and hydrogen by introducing carbon dioxide, hydrogen and oxygen into a reaction vessel, and performing a reverse water gas shift reaction at elevated temperature, wherein (a) no catalyst is present in vessel (b) gas stream comprising carbon dioxide, a hydrogen and an oxygen rich gas stream are introduced into the vessel in separate feed streams, (c) the hydrogen and oxygen rich gas stream being introduced in close vicinity of each other, via burner comprising coaxial channels wherein gases undergo a combustion reaction, providing the heating energy required for the reverse water-gas shift reaction; and (d) the temperature in vessel is in the range of 1000 to 1500° C. by varying the molar ratio of hydrogen to oxygen. It is useful in reducing the carbon footprint of certain industrial technologies, and in production of synthesis gas.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: April 23, 2024
    Assignee: Shell USA, INC.
    Inventors: Sayee Prasaad Balaji, Mark Klokkenburg, Robert Schouwenaar, Jose Atilio Quevedo Enriquez
  • Publication number: 20230392088
    Abstract: The invention relates to a process for the recovery of aliphatic hydrocarbons from a liquid stream comprising aliphatic hydrocarbons, heteroatom containing organic compounds and optionally aromatic hydrocarbons, involving a) contacting said liquid stream with a washing solvent thereby removing heteroatom containing organic compounds; b) liquid-liquid extraction of the washed stream with an extraction solvent; wherein heteroatom containing organic compounds, optional aromatic hydrocarbons and optional other contaminants are removed from said liquid stream and/or from a washed stream resulting from step a) and/or from a raffinate stream resulting from step b), respectively, by contacting the latter stream(s) with a sorption agent. Further, the invention relates to a process for the recovery of aliphatic hydrocarbons from plastics comprising the above-mentioned process; and to a process for steam cracking a hydrocarbon feed comprising aliphatic hydrocarbons as recovered in one of the above-mentioned processes.
    Type: Application
    Filed: November 12, 2021
    Publication date: December 7, 2023
    Inventors: Jean-Paul Andre Marie Joseph Ghislain LANGE, Guus VAN ROSSUM, Timothé OLTHOF, Kai FISCHER, Hendrik STICHTER, Jose Atilio QUEVEDO ENRIQUEZ, Luis Alberto GRAU LISNIER
  • Publication number: 20230192482
    Abstract: The present invention relates to a process for converting feed streams selected from (1) a gas stream comprising carbon dioxide and a hydrogen rich gas stream; (2) a methane rich gas stream; and (3) a combination of feed streams (1) and (2) into a product stream comprising carbon monoxide, water and hydrogen. The process may include introducing feed streams selected from (1), (2) or (3) and oxygen into a reaction vessel and switching modes between performing method I or method II in the reaction vessel wherein no catalyst is present. The reaction vessel may be provided with a burner located at the top of the reaction vessel, the burner may include coaxial channels for the separate introduction of the different gas streams. Method I may be a reverse water gas shift reaction at elevated temperature. Method II may be a partial oxidation reaction at elevated temperature.
    Type: Application
    Filed: May 28, 2021
    Publication date: June 22, 2023
    Inventors: Sayee Prasaad BALAJI, Mark KLOKKENBURG, Robert SCHOUWENAAR, Dominik Johannes Michael UNRUH, Jose Atilio QUEVEDO ENRIQUEZ
  • Publication number: 20230183587
    Abstract: The present invention relates to a process for converting carbon dioxide and hydrogen by performing a reverse water gas shift reaction at elevated temperature, the process comprising introducing carbon dioxide, hydrogen and oxygen into a reaction vessel having an inlet and an outlet, and, wherein the reverse water gas shift reaction takes place in two different zones of the reaction vessel, being a top zone (z1) adjacent to a bottom zone (z2). The process produces a product stream comprising mainly carbon monoxide, hydrogen and water. The process is useful in reducing the carbon footprint of certain industrial technologies, and in addition, the process is useful in the production of synthesis gas.
    Type: Application
    Filed: May 28, 2021
    Publication date: June 15, 2023
    Inventors: Sayee Prasaad BALAJI, Mark KLOKKENBURG, Robert SCHOUWENAAR, Dominik Johannes Michael UNRUH, Jose Atilio QUEVEDO ENRIQUEZ, Sven FELSKE
  • Publication number: 20220048776
    Abstract: A process for converting carbon dioxide and hydrogen into a product stream comprising carbon monoxide, water and hydrogen by introducing carbon dioxide, hydrogen and oxygen into a reaction vessel, and performing a reverse water gas shift reaction at elevated temperature, wherein (a) no catalyst is present in vessel (b) gas stream comprising carbon dioxide, a hydrogen and an oxygen rich gas stream are introduced into the vessel in separate feed streams, (c) the hydrogen and oxygen rich gas stream being introduced in close vicinity of each other, via burner comprising coaxial channels wherein gases gas undergo a combustion reaction, providing the heating energy required for the reverse water-gas shift reaction; and (d) the temperature in vessel is in the range of 1000 to 1500° C. by varying the molar ratio of hydrogen to oxygen. It is useful in reducing the carbon footprint of certain industrial technologies, and in production of synthesis gas.
    Type: Application
    Filed: November 29, 2019
    Publication date: February 17, 2022
    Inventors: Sayee Prasaad BALAJI, Mark KLOKKENBURG, Robert SCHOUWENAAR, Jose Atilio QUEVEDO ENRIQUEZ
  • Patent number: 10941361
    Abstract: The present application provides a method for controlling soot make in a process for the gasification of a liquid carbonaceous feedstock. The gasification process comprises: partially oxidizing the carbonaceous feedstock in a gasifier to produce syngas; guiding the syngas from an outlet of the gasifier to a quench section; cooling the syngas in the quench section to provide cooled syngas; providing the cooled syngas to a soot removal unit; using the soot removal unit to remove solids from the cooled syngas, the soot removal unit providing a cleaned syngas stream and a waste slurry stream comprising the solids removed from the syngas; continuously monitoring a concentration of total suspended solids (TSS) in the waste slurry stream; providing the concentration of total suspended solids (TSS) to a control system. The control system continuously optimizes the gasification process to changes in concentration of total suspended solids, carbon-to-ash ratio, and optional additional parameters.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: March 9, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mario Guilherme Santos Graca, Bart Van Krimpen, Jose Atilio Quevedo-Enriquez, Thomas Christiaan Van Tergouw, Joachim Ottomar Wolff
  • Publication number: 20200017783
    Abstract: The present application provides a method for controlling soot make in a process for the gasification of a liquid carbonaceous feedstock. The gasification process comprises: partially oxidizing the carbonaceous feedstock in a gasifier to produce syngas; guiding the syngas from an outlet of the gasifier to a quench section; cooling the syngas in the quench section to provide cooled syngas; providing the cooled syngas to a soot removal unit; using the soot removal unit to remove solids from the cooled syngas, the soot removal unit providing a cleaned syngas stream and a waste slurry stream comprising the solids removed from the syngas; continuously monitoring a concentration of total suspended solids (TSS) in the waste slurry stream; providing the concentration of total suspended solids (TSS) to a control system. The control system continuously optimizes the gasification process to changes in concentration of total suspended solids, carbon-to-ash ratio, and optional additional parameters.
    Type: Application
    Filed: December 14, 2016
    Publication date: January 16, 2020
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Mario Guilherme SANTOS GRACA, Bart van KRIMPEN, Jose Atilio QUEVEDO-ENRIQUEZ, Thomas Christiaan van TERGOUW, Joachim Ottomar WOLFF
  • Patent number: 9115039
    Abstract: Process for the preparation of olefins comprising reacting an oxygenate and/or olefinic feed in a reactor in the presence of a molecular sieve catalyst to form a mixture which comprises olefins and at least partially coked catalyst; passing at least partially coked catalyst to a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; separating at least partially regenerated catalyst and at least part of the gaseous mixture; analysing the composition of the gaseous mixture to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting the mass flow rate of the oxygen-containing gas on the basis of the analysis of the gaseous mixture; and passing at least part of the at least partially regenerated catalyst back to the reactor.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: August 25, 2015
    Assignee: Shell Oil Company
    Inventors: Leslie Andrew Chewter, Jose Atilio Quevedo Enriquez
  • Patent number: 9108892
    Abstract: Process for the preparation of olefins comprising reacting an oxygenate and/or olefinic feed in a reactor in the presence of a molecular sieve catalyst to form a mixture which comprises olefins and at least partially coked catalyst; separating olefins and at least partially coked catalyst as obtained; passing the at least partially coked catalyst to a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; analyzing the at least partially regenerated catalyst to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting one or more conditions of the regeneration of the at least partially coked catalyst on the basis of the analysis of the at least partially regenerated catalyst; and passing the at least partially regenerated catalyst to the reactor.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: August 18, 2015
    Assignee: Shell Oil Company
    Inventor: Jose Atilio Quevedo Enriquez
  • Patent number: 8946106
    Abstract: Process for the regeneration of an at least partially coked molecular sieve catalyst comprising introducing the at least partially coked catalyst into a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate at least part of the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; recovering part of the at least partially regenerated catalyst; analysing the at least partially regenerated catalyst to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting one or more conditions of the regeneration of the at least partially coked catalyst on the basis of the analysis of the at least partially regenerated catalyst; and separating at least partially regenerated catalyst and at least part of the gaseous mixture as obtained in step (b).
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: February 3, 2015
    Assignee: Shell Oil Company
    Inventors: Jose Atilio Quevedo Enriquez, Leslie Andrew Chewter, Jeroen Van Westrenen
  • Patent number: 8916490
    Abstract: Process for the regeneration of an at least partially coked molecular sieve catalyst comprising introducing the at least partially coked catalyst into a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate at least part of the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; separating at least partially regenerated catalyst and at least part of the gaseous mixture; and analyzing the composition of the gaseous mixture to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting the mass flow rate of the oxygen-containing gas on the basis of the analysis of the gaseous mixture.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: December 23, 2014
    Assignee: Shell Oil Company
    Inventors: Leslie Andrew Chewter, Jose Atilio Quevedo Enriquez
  • Publication number: 20130225895
    Abstract: Process for the preparation of olefins comprising reacting an oxygenate and/or olefinic feed in a reactor in the presence of a molecular sieve catalyst to form a mixture which comprises olefins and at least partially coked catalyst; separating olefins and at least partially coked catalyst as obtained; passing the at least partially coked catalyst to a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; analysing the at least partially regenerated catalyst to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting one or more conditions of the regeneration of the at least partially coked catalyst on the basis of the analysis of the at least partially regenerated catalyst; and passing the at least partially regenerated catalyst to the reactor.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 29, 2013
    Applicant: SHELL OIL COMPANY
    Inventor: Jose Atilio QUEVEDO ENRIQUEZ
  • Publication number: 20130225893
    Abstract: Process for the preparation of olefins comprising introducing an oxygenate and/or olefinic feed into a reactor; reacting the oxygenate and/or olefinic feed in the reactor in the presence of a molecular sieve catalyst to form a mixture which comprises olefins and at least partially coked catalyst; separating olefins and at least partially coked catalyst; recovering olefins; and controlling the temperature of the oxygenate and/or olefinic feed to be introduced into the reactor on the basis of the temperature of the mixture formed in the reaction and/or the olefins obtained.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 29, 2013
    Applicant: SHELL OIL COMPANY
    Inventors: Leslie Andrew CHEWTER, Jose Atilio QUEVEDO ENRIQUEZ
  • Publication number: 20130225896
    Abstract: Process for the preparation of olefins comprising reacting an oxygenate and/or olefinic feed in a reactor in the presence of a molecular sieve catalyst to form a mixture which comprises olefins and at least partially coked catalyst; passing at least partially coked catalyst to a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; separating at least partially regenerated catalyst and at least part of the gaseous mixture; analysing the composition of the gaseous mixture to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting the mass flow rate of the oxygen-containing gas on the basis of the analysis of the gaseous mixture; and passing at least part of the at least partially regenerated catalyst back to the reactor.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 29, 2013
    Applicant: SHELL OIL COMPANY
    Inventors: Leslie Andrew CHEWTER, Jose Atilio QUEVEDO ENRIQUEZ
  • Publication number: 20130225894
    Abstract: Process for the preparation of olefins, which process comprising introducing an oxygenate and/or olefinic feed through introduction means into a reactor; reacting the oxygenate and/or olefinic feed in the reactor in the presence of a molecular sieve catalyst to form a mixture with a resulting gas superficial velocity which mixture comprises olefins and at least partially coked catalyst; separating olefins and at least partially coked catalyst; recovering olefins; and controlling the gas superficial velocity of the mixture at a predetermined level in the reactor on the basis of the inlet mass gas flow rate of the feed.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 29, 2013
    Applicant: SHELL OIL COMPANY
    Inventors: Leslie Andrew CHEWTER, Jose Atilio QUEVEDO ENRIQUEZ
  • Publication number: 20130225393
    Abstract: Process for the regeneration of an at least partially coked molecular sieve catalyst comprising introducing the at least partially coked catalyst into a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate at least part of the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; separating at least partially regenerated catalyst and at least part of the gaseous mixture; and analysing the composition of the gaseous mixture to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting the mass flow rate of the oxygen-containing gas on the basis of the analysis of the gaseous mixture.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 29, 2013
    Applicant: SHELL OIL COMPANY
    Inventors: Leslie Andrew CHEWTER, Jose Atilio QUEVEDO ENRIQUEZ
  • Publication number: 20130225394
    Abstract: Process for the regeneration of an at least partially coked molecular sieve catalyst comprising introducing the at least partially coked catalyst into a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate at least part of the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; recovering part of the at least partially regenerated catalyst; analysing the at least partially regenerated catalyst to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting one or more conditions of the regeneration of the at least partially coked catalyst on the basis of the analysis of the at least partially regenerated catalyst; and separating at least partially regenerated catalyst and at least part of the gaseous mixture as obtained in step (b).
    Type: Application
    Filed: August 29, 2012
    Publication date: August 29, 2013
    Applicant: SHELL OIL COMPANY
    Inventors: Jose Atilio QUEVEDO ENRIQUEZ, Leslie Andrew Chewter, Jeroen Van Westrenen