Patents by Inventor Timothé Johannes OLTHOF

Timothé Johannes OLTHOF 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
  • Patent number: 12270000
    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) liquid-liquid extraction of said liquid stream with an extraction solvent, wherein before and/or after step a) heteroatom containing organic compounds, optional aromatic hydrocarbons and optional other contaminants are removed from said liquid stream and/or from a raffinate stream resulting from step a), 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: Grant
    Filed: October 12, 2021
    Date of Patent: April 8, 2025
    Assignee: SHELL USA, INC.
    Inventors: Jean-Paul Andre Marie Joseph Ghislain Lange, Kai Jürgen Fischer, Guus Van Rossum, Timothé Johannes Olthof, Willem Derks, Hendrik Stichter
  • 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
  • Publication number: 20230374400
    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 (i) contacting said liquid stream with a washing solvent thereby removing heteroatom containing organic compounds; a) liquid-liquid extraction of the washed stream with an extraction solvent thereby recovering part of the aliphatic hydrocarbons; b1) mixing the extract stream, comprising extraction solvent, aliphatic hydrocarbons, heteroatom containing organic compounds and optionally aromatic hydrocarbons, with a demixing solvent to recover additional aliphatic hydrocarbons; b2) mixing the remaining stream with additional demixing solvent to remove heteroatom containing organic compounds and optional aromatic hydrocarbons; and c) separation of the remaining stream into a demixing solvent stream and an extraction solvent stream.
    Type: Application
    Filed: October 12, 2021
    Publication date: November 23, 2023
    Inventors: Jean-Paul Andre Marie Joseph Ghislain LANGE, Kai Jürgen FISCHER, Guus VAN ROSSUM, Timothé Johannes OLTHOF, Sybe SIPMA, Luis Alberto GRAU LISNIER, Hendrik STICHTER
  • Publication number: 20230365877
    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 (i) contacting said liquid stream with a washing solvent thereby removing heteroatom containing organic compounds; a) liquid-liquid extraction of the washed stream with an extraction solvent; b) mixing the extract stream, comprising extraction solvent, heteroatom containing organic com-pounds and optionally aromatic hydrocarbons, with a demixing solvent to remove additional heteroatom containing organic compounds and optional aromatic hydrocarbons; and c) separation of the remaining stream into a demixing solvent stream and an extraction vent stream.
    Type: Application
    Filed: October 12, 2021
    Publication date: November 16, 2023
    Inventors: Jean-Paul Andre Marie Joseph Ghislain LANGE, Kai Jürgen FISCHER, Guus VAN ROSSUM, Timothé Johannes OLTHOF, Sybe SIPMA, Luis Alberto GRAU LISNIER, Hendrik STICHTER
  • Publication number: 20220396538
    Abstract: The invention relates to a process for the preparation of ethylene glycol, comprising: a) converting a stream comprising ethylene oxide in the presence of a catalyst and carbon dioxide in two or more reactors to a stream comprising ethylene carbonate; and b) converting ethylene carbonate from the stream comprising ethylene carbonate obtained in step a) in the presence of a catalyst in one or more reactors to a stream comprising ethylene glycol and a stream comprising carbon dioxide, wherein the inlet stream or inlet streams to the last reactor of the two or more reactors used in step a) is or are not heated; and wherein an outlet stream comprising ethylene carbonate from the last reactor of the two or more reactors used in step a) is sent, without recycling a portion thereof to the last reactor used in step a), to the first reactor of the one or more reactors wherein step b) is carried out.
    Type: Application
    Filed: December 7, 2020
    Publication date: December 15, 2022
    Inventors: Koen WOLF, Timothé Johannes OLTHOF, Eugene Marie Godfried Andre VAN KRUCHTEN, Daniel Maurice LORIMER