Patents Assigned to GASOLFIN B.V.
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Publication number: 20230146172Abstract: The invention is directed to a process to prepare propylene from a mixture of hydrocarbons having an olefin content of between 5 and 50 wt. % and boiling for more than 90 vol. % between 35 and 280 ?C or from a hydrocarbon feed comprising paraffins, naphthenics and/or aromatics and optionally up to 10 wt. % of olefins, by first contacting the feed with a low acidic density cracking catalyst in a reactor, separating propylene and subsequently contacting the residue with a high acidic density cracking catalyst in a reactor at a more elevated temperature, separating propylene and recycling the residue to first and second cracking reactors. Aromatics may be added to first and second cracking step to improve cycle length.Type: ApplicationFiled: April 10, 2020Publication date: May 11, 2023Applicant: GASOLFIN B.V.Inventors: Elbert Arjan DE GRAAF, Raymond Paul FLETCHER
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Patent number: 11465952Abstract: The invention is directed to a process to prepare propylene from a mixture of hydrocarbons having an olefin content of between 5 and 50 wt. % and boiling for more than 90 vol. % between 35 and 280° C. or from a hydrocarbon feed comprising paraffins, naphthenics, aromatics and optionally up to 10 wt. % of olefins, by first contacting the feed with a low acidic density cracking catalyst in a fixed bed reactor, separating propylene and subsequently contacting the residue with a high acidic density cracking catalyst in a fixed bed reactor at a more elevated temperature, separating propylene and recycling the residue to first and second cracking reactors. Aromatics may be added to first and second cracking step to improve cycle length.Type: GrantFiled: October 11, 2019Date of Patent: October 11, 2022Assignee: GASOLFIN B.V.Inventors: Raymond Paul Fletcher, Elbert Arjan De Graaf
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Patent number: 11447432Abstract: The invention is directed to a process to prepare propylene from a hydrocarbon feed comprising pentane by contacting the hydrocarbon feed with a heterogeneous cracking catalyst as present in one or more fixed beds thereby obtaining a cracked effluent. The heterogeneous catalyst comprises a matrix component and a molecular sieve comprising framework alumina, framework silica and a framework metal selected from the group of Zn, Fe, Ce, La, Y, Ga and/or Zr. Propylene is isolated from the cracked effluent.Type: GrantFiled: December 19, 2017Date of Patent: September 20, 2022Assignee: GASOLFIN B.V.Inventor: Raymond Paul Fletcher
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Publication number: 20210355050Abstract: The invention is directed to a process to prepare propylene from a mixture of hydrocarbons having an olefin content of between 5 and 50 wt. % and boiling for more than 90 vol. % between 35 and 280° C. or from a hydrocarbon feed comprising paraffins, naphthenics, aromatics and optionally up to 10 wt. % of olefins, by first contacting the feed with a low acidic density cracking catalyst in a fixed bed reactor, separating propylene and subsequently contacting the residue with a high acidic density cracking catalyst in a fixed bed reactor at a more elevated temperature, separating propylene and recycling the residue to first and second cracking reactors. Aromatics may be added to first and second cracking step to improve cycle length.Type: ApplicationFiled: October 11, 2019Publication date: November 18, 2021Applicant: GASOLFIN B.V.Inventors: Raymond Paul FLETCHER, Elbert Arjan DE GRAAF
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Patent number: 10919820Abstract: The invention is directed to a process to prepare propylene from a hydrocarbon feedstock comprising olefin hydrocarbon compounds by contacting the feedstock with a mixture of a heterogeneous cracking catalyst and a heterogeneous dehydrogenation catalyst as present in one or more packed beds thereby obtaining propylene and other reaction products.Type: GrantFiled: June 23, 2016Date of Patent: February 16, 2021Assignee: GASOLFIN B.V.Inventor: Hubertus Wilhelmus Albertus Dries
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Publication number: 20200087228Abstract: The invention is directed to a process to prepare propylene from a hydrocarbon feed comprising pentane by contacting the hydrocarbon feed with a heterogeneous cracking catalyst as present in one or more fixed beds thereby obtaining a cracked effluent. The heterogeneous catalyst comprises a matrix component and a molecular sieve comprising framework alumina, framework silica and a framework metal selected from the group of Zn, Fe, Ce, La, Y, Ga and/or Zr. Propylene is isolated from the cracked effluent.Type: ApplicationFiled: December 19, 2017Publication date: March 19, 2020Applicant: GASOLFIN B.V.Inventor: Raymond Paul FLETCHER
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Patent number: 10479740Abstract: The invention is directed to a process to prepare propylene from a mixture of hydrocarbons by performing the following steps. (a) extracting aromatics from the mixture of hydrocarbons thereby obtaining a mixture of hydrocarbons poor in aromatics, (b) contacting the mixture obtained in step (a) with a heterogeneous cracking catalyst as present in a fixed bed thereby obtaining a cracked effluent, (c) separating propylene from the cracked effluent thereby also obtaining a higher boiling fraction, (d) recycling part of the higher boiling fraction to step (b) and at least 5 wt % of the higher boiling fraction to step (a).Type: GrantFiled: June 23, 2016Date of Patent: November 19, 2019Assignee: GASOLFIN B.V.Inventor: Hubertus Wilhelmus Albertus Dries