Patents by Inventor Cyrille Paul Allais

Cyrille Paul Allais 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: 10676404
    Abstract: A fertiliser comprising both sulphur and a solution of urea and ammonium nitrate in water is disclosed. Processes for making such a fertiliser are also disclosed.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: June 9, 2020
    Assignee: SHELL OIL COMPANY
    Inventors: Rafael Alberto Garcia Martinez, Cyrille Paul Allais
  • Patent number: 10676405
    Abstract: A process for preparing an elemental sulphur-containing composition for use as a fertilizer and/or soil improver comprises wet milling elemental sulphur in a liquid to produce a micronized sulphur slurry for application to soil, and further comprises adding a preventive scavenging additive for fixating sulphur dioxide and hydrogen sulphide gases that are released downstream of the mill.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 9, 2020
    Assignee: SHELL OIL COMPANY
    Inventor: Cyrille Paul Allais
  • Patent number: 10464855
    Abstract: A process for preparing a urea-sulphur fertiliser is disclosed. Urea and sulphur are supplied to a dispersion mill wherein a rotor turns within a slotted stator, thereby providing a dispersion of molten urea and molten sulphur; and the dispersion of molten urea and molten sulphur is supplied to a forming unit to provide the urea-sulphur fertiliser.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: November 5, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Cyrille Paul Allais, Rafael Alberto Garcia Martinez
  • Patent number: 10464854
    Abstract: A process for preparing a micronutrient-enriched phosphate-based fertilizer is disclosed. An aqueous fertilizer mixture comprising phosphoric acid and/or phosphate rock is prepared and optionally granulated in granulator unit. The pH of the fertilizer mixture is measured and controlled such that the pH is maintained within a predefined range.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: November 5, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Cyrille Paul Allais, Rafael Alberto Garcia Martinez, Klaas Jan Hutter, Charles James Ingoldsby, Jason Trevor O'Brien, Carlos Moreira Tomaz
  • Patent number: 10221106
    Abstract: A process for the manufacture of a urea-sulphur fertiliser composition, the process comprising providing feeds comprising elemental sulphur, urea, and optionally a surfactant, such as a multifunctional ionic surfactant; merging the feeds in order to obtain a combined feed; passing the combined feed through a mixing stage in order to obtain a mixed feed; and passing the mixed feed through a processing stage in order to obtain the urea-sulphur fertiliser composition. Compositions obtained by the process are also provided.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: March 5, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Cyrille Paul Allais, Klaas Jan Hutter, Rafael Alberto Garcia Martinez, Charles James Ingoldsby, Carlos Moreira Tomaz, Jason Trevor O'Brien
  • Patent number: 10202311
    Abstract: The present invention discloses a urea fertilizer having a lignin compound and elemental sulphur dispersed throughout the fertilizer and having improved hardness.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: February 12, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Rafael Alberto Garcia Martinez, Cyrille Paul Allais, Klaas Jan Hutter, Charles James Ingoldsby, Carlos Moreira Tomaz
  • Patent number: 10077215
    Abstract: The present invention discloses the use of a lignin compound to prepare a urea fertiliser having reduced biuret content.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: September 18, 2018
    Assignee: SHELL OIL COMPANY
    Inventors: Rafael Alberto Garcia Martinez, Cyrille Paul Allais, Dawid John D'Melo, Chithra Manikandan
  • Publication number: 20180244588
    Abstract: A fertiliser comprising both sulphur and a solution of urea and ammonium nitrate in water is disclosed. Processes for making such a fertiliser are also disclosed.
    Type: Application
    Filed: September 2, 2016
    Publication date: August 30, 2018
    Inventors: Rafael Alberto GARCIA MARTINEZ, Cyrille Paul ALLAIS
  • Publication number: 20170327430
    Abstract: A process for preparing an elemental sulphur-containing composition for use as a fertilizer and/or soil improver comprises wet milling elemental sulphur in a liquid to produce a micronized sulphur slurry for application to soil, and further comprises adding a preventive scavenging additive for fixating sulphur dioxide and hydrogen sulphide gases that are released downstream of the mill.
    Type: Application
    Filed: December 18, 2015
    Publication date: November 16, 2017
    Applicant: SHELL OIL COMPANY
    Inventor: Cyrille Paul ALLAIS
  • Publication number: 20170210675
    Abstract: A process for the manufacture of a urea-sulphur fertiliser composition, the process comprising providing feeds comprising elemental sulphur, urea, and optionally a surfactant, such as a multifunctional ionic surfactant; merging the feeds in order to obtain a combined feed; passing the combined feed through a mixing stage in order to obtain a mixed feed; and passing the mixed feed through a processing stage in order to obtain the urea-sulphur fertiliser composition. Compositions obtained by the process are also provided.
    Type: Application
    Filed: July 24, 2015
    Publication date: July 27, 2017
    Inventors: Cyrille Paul ALLAIS, Klaas Jan HUTTER, Rafael Alberto GARCIA MARTINEZ, Charles James INGOLDSBY, Carlos MOREIRA TOMAZ, Jason Trevor O'BRIEN
  • Patent number: 9598322
    Abstract: The invention provides a process for the preparation an emulsion of elemental sulphur particles, said process comprising the steps of: (a) providing a first stream comprising a liquid fertilizer and/or a liquid fertilizer precursor; (b) providing a second stream comprising liquid elemental sulphur; and (c) mixing the first stream and the second stream in a mixing device in the presence of a multifunctional ionic surfactant to form an emulsion comprising elemental sulphur particles which are coated with a layer of the multifunctional ionic surfactant and dispersed in the fertilizer and/or the fertilizer precursor, whereby a temperature is applied which maintains the elemental sulphur substantially in the liquid form in the mixing device. The invention further provides an elemental sulphur-containing fertilizer obtainable by a process according to the invention.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: March 21, 2017
    Assignee: SHELL OIL COMPANY
    Inventors: Cyrille Paul Allais, Klaas Jan Hutter, Rafael Alberto Garcia Martinez
  • Publication number: 20160368830
    Abstract: A process for preparing a micronutrient-enriched phosphate-based fertiliser is disclosed. An aqueous fertiliser mixture comprising phosphoric acid and/or phosphate rock is prepared and optionally granulated in granulator unit. The pH of the fertiliser mixture is measured and controlled such that the pH is maintained within a predefined range.
    Type: Application
    Filed: July 2, 2014
    Publication date: December 22, 2016
    Inventors: Cyrille Paul ALLAIS, Rafael Alberto GARCIA MARTINEZ, Klaas Jan HUTTER, Charles James INGOLDSBY, Jason Trevor O'BRIEN, Carlos TOMAZ
  • Publication number: 20160332924
    Abstract: The present invention discloses the use of a lignin compound to prepare a urea fertiliser having reduced biuret content.
    Type: Application
    Filed: January 7, 2015
    Publication date: November 17, 2016
    Inventors: Rafael Alberto GARCIA MARTINEZ, Cyrille Paul ALLAIS, Dawid John D'MELO, Chithra MANIKANDAN
  • Publication number: 20160332923
    Abstract: A process for preparing a urea-sulphur fertiliser is disclosed. Urea and sulphur are supplied to a dispersion mill wherein a rotor turns within a slotted stator, thereby providing a dispersion of molten urea and molten sulphur; and the dispersion of molten urea and molten sulphur is supplied to a forming unit to provide the urea-sulphur fertiliser.
    Type: Application
    Filed: January 7, 2015
    Publication date: November 17, 2016
    Inventors: Cyrille Paul ALLAIS, Rafael Alberto GARCIA MARTINEZ
  • Publication number: 20160326066
    Abstract: The present invention discloses a urea fertiliser having a lignin compound and elemental sulphur dispersed through-out the fertiliser and having improved hardness.
    Type: Application
    Filed: January 7, 2015
    Publication date: November 10, 2016
    Inventors: Rafael Alberto GARCIA MARTINEZ, Cyrille Paul ALLAIS, Klaas Jan HUTTER, Charles James INGOLDSBY, Carlos MOREIRA TOMAZ
  • Publication number: 20150175492
    Abstract: The invention provides a process for the preparation an emulsion of elemental sulphur particles, said process comprising the steps of: (a) providing a first stream comprising a liquid fertilizer and/or a liquid fertilizer precursor; (b) providing a second stream comprising liquid elemental sulphur; and (c) mixing the first stream and the second stream in a mixing device in the presence of a multifunctional ionic surfactant to form an emulsion comprising elemental sulphur particles which are coated with a layer of the multifunctional ionic surfactant and dispersed in the fertilizer and/or the fertilizer precursor, whereby a temperature is applied which maintains the elemental sulphur substantially in the liquid form in the mixing device. The invention further provides an elemental sulphur-containing fertilizer obtainable by a process according to the invention.
    Type: Application
    Filed: July 8, 2013
    Publication date: June 25, 2015
    Inventors: Cyrille Paul Allais, Klaas Jan Hutter, Rafael Alberto Garcia Martinez
  • Patent number: 8975432
    Abstract: The invention relates to a process for the preparation of an alkanediol and a dialkyl carbonate comprising: reacting an alkylene carbonate and an alkanol in the presence of a transesterification catalyst to obtain a reaction mixture comprising dialkyl carbonate, unconverted alkanol, alkanediol, unconverted alkylene carbonate and an alkoxy alkanol impurity; and subjecting the reaction mixture to distillation in a series of steps.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 10, 2015
    Assignee: Shell Oil Company
    Inventors: Cyrille Paul Allais, Timothy Michael Nisbet, Garo Garbis Vaporciyan, Cornelis Leonardus Maria Vrouwenvelder
  • Patent number: 8907116
    Abstract: The invention relates to a process for removing an alkanol impurity from a stream containing a dialkyl carbonate and the alkanol impurity, comprising contacting the stream with an aryl group containing ester and a catalyst to effect reaction of the alkanol impurity with the aryl group containing ester.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: December 9, 2014
    Assignee: Shell Oil Company
    Inventors: Cyrille Paul Allais, Garo Garbis Vaporciyan
  • Patent number: 8735607
    Abstract: The invention relates to a process for the production of an alkylene carbonate by the reaction of an alkylene oxide with carbon dioxide in the presence of a phosphonium catalyst in which process (a) the alkylene oxide, carbon dioxide and phosphonium catalyst are continuously introduced into a reaction zone from which a product stream containing alkylene carbonate and phosphonium catalyst is withdrawn; (b) alkylene carbonate and a stream containing phosphoniura catalyst are separated from the product stream; (c) the alkylene carbonate, separated in step (b), is recovered as product; and (d) the stream containing phosphoniura catalyst, separated in step (b), is recycled to the reaction zone, in which process a treatment of alkylene carbonate and/or catalyst with a sorption agent comprising carbon is carried out.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: May 27, 2014
    Assignee: Shell Oil Company
    Inventors: Cyrille Paul Allais, Evert Van Der Heide, Gerardus Martinus Maria Van Kessel
  • Publication number: 20130066099
    Abstract: The invention relates to a process for the preparation of an alkanediol and a dialkyl carbonate comprising: (a) reacting an alkylene carbonate and an alkanol in the presence of a transesterification catalyst to obtain a reaction mixture comprising dialkyl carbonate, unconverted alkanol, alkanediol, unconverted alkylene carbonate and an alkoxy alkanol impurity; (b) subjecting the reaction mixture to distillation in a first distillation column to obtain a top stream comprising dialkyl carbonate, alkanol and alkoxy alkanol impurity and a bottom stream comprising alkanediol and alkylene carbonate; (c) subjecting the bottom stream from the first distillation column to distillation in a second distillation column to obtain a top stream comprising alkanediol and a bottom stream comprising alkylene carbonate; (d) subjecting the lop stream from the first distillation column to distillation in a third distillation column in the presence of a catalyst to effect reaction of the alkoxy alkanol impurity with the dialkyl ca
    Type: Application
    Filed: November 15, 2010
    Publication date: March 14, 2013
    Inventors: Cyrille Paul Allais, Timothy Michael Nisbet, Garo Garbis Vaporciyan, Cornelis Leonardus Maria Vrouwenvelder