Patents Assigned to Total Petrochemicals Research Feluy
  • Publication number: 20120252988
    Abstract: The present invention relates to a process for preparing a bimodal polyethylene product in a single loop reactor, comprising polymerizing ethylene monomer and optionally one or more olefin co-monomers in the presence of a single heterogeneous polymerization catalyst consisting of a metallocene-alumoxane catalyst immobilized on a porous support wherein said metallocene comprises only one transition metal. Said polymerization catalyst consists of two physically different fractions of support particles onto which said metallocene-alumoxane catalyst is immobilized.
    Type: Application
    Filed: December 17, 2010
    Publication date: October 4, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventor: Martine Slawinski
  • Publication number: 20120252989
    Abstract: The present invention relates to a method for optimizing the sequential feeding of at least two ethylene polymerization catalysts to an ethylene polymerization reactor, comprising: transferring to a mixing vessel a first ethylene polymerization catalyst and a first diluent, decreasing the concentration of said first ethylene polymerization catalyst in said mixing vessel, transferring to said mixing vessel a second ethylene polymerization catalyst and a second diluent, progressively replacing said first ethylene polymerization catalyst by said second ethylene polymerization catalyst and said first diluent by said second diluent, increasing the concentration of said second ethylene polymerization catalyst in said mixing vessel, sequentially transferring said first ethylene polymerization catalyst and said second ethylene polymerization catalyst from said mixing vessel to an ethylene polymerization reactor.
    Type: Application
    Filed: December 17, 2010
    Publication date: October 4, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Daan Dewachter, Martine Slawinski
  • Publication number: 20120245021
    Abstract: The present invention discloses a catalyst system based on a metallocene catalyst component and a new single site catalyst component for the production in a single reactor of improved polyolefins having a bimodal molecular weight distribution.
    Type: Application
    Filed: March 28, 2012
    Publication date: September 27, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventor: Abbas Razavi
  • Publication number: 20120245307
    Abstract: The invention relates to a process for the preparation of a particulate bimodal polyethylene product having a median particle diameter of less than 300 ?m in a serially connected double loop reactor, wherein said polymerization catalyst applied in the polymerization process comprises a particulate metallocene-alumoxane catalyst immobilized on a porous silica support, wherein said polymerization catalyst has a median particle diameter of less than 50 ?m; and whereby the ratio of the median particle diameter of the obtained bimodal polyethylene product to the median particle diameter of the applied polymerization catalyst is less than 30.
    Type: Application
    Filed: December 17, 2010
    Publication date: September 27, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventor: Martine Slawinski
  • Publication number: 20120242532
    Abstract: The present invention relates to a method for monitoring the level of an ethylene polymerization catalyst slurry in a mud pot (2), whereby said catalyst slurry is prepared by introducing a solid catalyst and a liquid diluent in said mud pot (2), and whereby through sedimentation an interface (35) is formed between said diluent and the obtained catalyst slurry, characterized in that said interface (35) is monitored with Time Domain Reflectometry.
    Type: Application
    Filed: December 17, 2010
    Publication date: September 27, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Louis Fouarge, Alain Brusselle
  • Publication number: 20120242003
    Abstract: The present invention concerns a propylene polymer comprising at least two propylene polymer fractions of different melt flow index and a minor amount of at least one comonomer, said propylene polymer being further characterized by specific ranges for melt flow index, xylene solubles content and recovery compliance. Said propylene polymer is particularly suited for thermoforming. The present invention further concerns a process for producing said propylene polymer as well as its use in thermoforming.
    Type: Application
    Filed: September 30, 2010
    Publication date: September 27, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Thomas Forgue, Jérôme Gromada, Alain Standaert, Rita De Luca
  • Patent number: 8258245
    Abstract: Methods for supplying a catalyst to an ethylene slurry loop polymerization reactor and polymers formed therefrom are described herein. The method generally includes preparing a catalyst slurry in a preparation vessel wherein the slurry includes a hydrocarbon diluent liquid which contains a Ziegler-Natta catalyst; supplying the catalyst slurry from the preparation vessel to a buffer vessel; withdrawing the catalyst slurry from the buffer vessel and supplying the catalyst slurry to a slurry loop polymerization reactor in which ethylene is polymerized; mixing a co-catalyst with the Ziegler Natta catalyst in the slurry prior to the supplying of the catalyst slurry to the slurry loop polymerization reactor; and controlling the transfer of catalyst slurry from the preparation vessel to the buffer vessel and the withdrawal of catalyst slurry from the buffer vessel to maintain the level of catalyst slurry in the buffer vessel substantially constant relative to the level of catalyst slurry in the preparation vessel.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: September 4, 2012
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Louis Fouarge
  • Patent number: 8257657
    Abstract: A device for discharging, through a central rotating chimney, fluids from a fluidized bed driven in a rotational movement in the same direction by the rotation of the outer circular wall of a reaction chamber and/or by injection of part of these fluids along the circular wall of a fixed or rotating chamber, and methods for catalytic polymerization, drying, or other treatments of solid particles in suspension in a rotating fluidized bed or for cracking or other catalytic conversions of fluids using this device.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: September 4, 2012
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Axel de Broqueville, Juray De Wilde
  • Patent number: 8258237
    Abstract: A homogeneous blend comprising from 10% to 90% by weight of a metallocene catalyzed polyethylene (mPE) and from 90% to 10% by weight of styrene-butadiene block copolymers comprising from 5% to 40% by weight of 1,3 butadiene monomer units and from 60% to 95% by weight of styrene monomer units. The blend of the invention is used to make peelable films for food packaging applications.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: September 4, 2012
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Pascal Fourcade
  • Patent number: 8252240
    Abstract: The present invention provides a multiple loop reactor suitable for polymerizing olefins comprising at least two interconnected loop reactors, whereby said connection essentially consists of one or more transfer lines suitable for transferring polymer slurry from a reactor to another reactor and whereby said transfer line extends substantially horizontally. The invention further relates to a process for producing olefin polymers in a multiple loop reactor according to the invention. The invention also relates to the use of a transfer line for transferring polymer slurry from a reactor to another reactor in a multiple loop reactor comprising at least two interconnected loop reactors, whereby said transfer line extends substantially horizontally.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: August 28, 2012
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Hugo Vandaele
  • Publication number: 20120178879
    Abstract: The present invention relates to a process for recycling product streams that have been separated from a hydrocarbon-containing feed stream comprising olefin monomer, olefin co-monomer, hydrocarbon diluent and components such as H2, N2, O2, CO, CO2, and formaldehyde. In accordance with the present process a hydrocarbon-containing feed stream is separated into a) a first side stream comprising hydrocarbon diluent and olefin monomer; b) a second side stream which is substantially hydrogen-free and comprises hydrocarbon diluent and olefin monomer, c) a bottom stream comprising substantially olefin-free hydrocarbon diluent, and d) an overhead vapor stream comprising olefin monomer, hydrocarbon diluent and components such as formaldehyde, H2, N2, O2, CO and CO2. The present process further includes recycling said first and said second side streams in a polymerization process for preparing bimodal polyolefin.
    Type: Application
    Filed: September 10, 2010
    Publication date: July 12, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Denis Mignon, David Vandewiele, Bernard Van Der Schrick, Camille Vercruysse
  • Patent number: 8217206
    Abstract: The present invention is a process for converting methane to methanol, comprising: feeding methane and gaseous air or oxygen or gaseous air enriched with oxygen to a reactor under an elevated pressure; said reactor having an internal surface, made of silica or coated with silica, surrounding a zone in which said gases react; and reacting said gases in said reaction zone at an elevated temperature at conditions effective to produce methanol and for valuable oxygenates. Advantageously the internal surface is made of quartz or coated with quartz Advantageously the internal surface, made of silica (advantageously quartz) or coated with silica (advantageously quartz), is treated with HF before the conversion of methane to methanol. Advantageously the reaction is carried out in the absence in said reaction zone of any added material which measurably affects the rate of the reaction or the yield of the product. Advantageously the reactor is operated under a pressure from 1 to 7.5 MPa.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: July 10, 2012
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Hendrik De Winne, Pierre Jacobs, Bert Sels, Walter Vermeiren
  • Publication number: 20120172574
    Abstract: The present invention discloses a method for polymerising cyclic carbonates by immortal ring-opening polymerisation in the presence of organocatalysts and alcohol, said alcohol acting as initiator and as transfer agent.
    Type: Application
    Filed: July 13, 2010
    Publication date: July 5, 2012
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Marion Helou, Sophie Guillaume, Jean-François Carpentier, Jean-Michel Brusson
  • Publication number: 20120157638
    Abstract: The present invention relates to a process for the polymerization of an olefin monomer. In particular, the present invention relates to a process for the polymerization of an olefin monomer and one or more optional comonomers in presence of a polymerization catalyst and hydrogen, said process being characterized by an improved control of the hydrogen concentration in the polymerization reactor. In addition, the present invention provides for an improved hydrogen feeding system to a polymerization reactor. Furthermore, the present invention provides for a polymerization reactor comprising such an improved hydrogen feeding system.
    Type: Application
    Filed: June 18, 2010
    Publication date: June 21, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventor: Daan Dewachter
  • Publication number: 20120151844
    Abstract: This invention discloses a method for preparing rotomoulded articles having asymmetrical layering.
    Type: Application
    Filed: October 1, 2009
    Publication date: June 21, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventor: Eric Maziers
  • Publication number: 20120157728
    Abstract: A process for making a bio-naphtha and optionally bio-propane from a complex mixture of natural occurring fats & oils, wherein said complex mixture is subjected to a refining treatment for removing the major part of non-triglyceride and non-fatty acid components, thereby obtaining refined fats & oils; said refined fats & oils are transformed into linear or substantially linear paraffin's as the bio-naphtha by an hydrodeoxygenation or from said refined fats & oils are obtained fatty acids that are transformed into linear or substantially linear paraffin's as the bio-naphtha by hydrodeoxygenation or decarboxylation of the free fatty acids or from said refined fats & oils are obtained fatty acids soaps that are transformed into linear or substantially linear paraffin's as the bio-naphtha by decarboxylation of the soaps.
    Type: Application
    Filed: July 13, 2010
    Publication date: June 21, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Walter Vermeiren, Nicolas Van Gyseghem
  • Publication number: 20120149858
    Abstract: The present invention provides a method for improving and controlling the activity of Ziegler-Natta catalyst systems.
    Type: Application
    Filed: February 24, 2012
    Publication date: June 14, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: David Ribour, Roger Spitz, Jerome Gromada, Christophe Boisson
  • Publication number: 20120142982
    Abstract: Use of fatty acids produced from a complex mixture of natural occurring oils & fats and/or of triglycerides deriving from said complex mixture as the feedstock of a steamcracker, by mixing the fatty acids with steam in a steam/feedstock ratio of at least 0.2 kg per kg, a coil outlet temperature of at least 700° C. and an coil outlet pressure of at least 1.2 bara in order to obtain cracking products including bio-ethylene, bio-propylene, bio-butadiene, bio-isoprene, bio-cyclopentadiene and bio-piperylenes, bio-benzene, bio-toluene, bio-xylene and bio-gasoline.
    Type: Application
    Filed: July 13, 2010
    Publication date: June 7, 2012
    Applicant: Total Petrochemicals Research Feluy
    Inventors: Valerie Vanrysselberghe, Walter Vermeiren
  • Publication number: 20120142983
    Abstract: Process for making a bio-diesel and a bio-naphtha and optionally bio-propane from a complex mixture of natural occurring fats & oils, wherein said complex mixture is subjected to a refining treatment for removing the major part of the non-triglyceride and non-fatty acid components, thereby obtaining refined oils; said refined oils are subjected to a fractionation step for obtaining: an unsaturated or substantially unsaturated, liquid or substantially liquid triglyceride part (phase L); and a saturated or substantially saturated, solid or substantially solid triglyceride part (phase S); and said phase L is transformed into alkyl-esters as bio-diesel by a transesterification; said phase S is transformed into linear or substantially linear paraffin's as the bio-naphtha: by an hydrodeoxygenation or from said phase S are obtained fatty acids that are transformed into linear or substantially linear paraffin's as the bio-naphtha by hydrodeoxygenation or decarboxylation of the free fatty acids or from said
    Type: Application
    Filed: July 13, 2010
    Publication date: June 7, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Walter Vermeiren, François Bouvart, Nicolas Dubut
  • Publication number: 20120141708
    Abstract: Bi-layer articles prepared by rotational moulding comprising: a. an internal layer prepared from a composition comprising from 50 to 100 wt % of polyethylene (PE) and from 50 to 0 wt % of functionalised polyolefin and; b. an external layer prepared from polyetherester or saturated polyester or polycarbonate wherein the adhesion between the two layers is achieved by the internal layer composition.
    Type: Application
    Filed: February 15, 2012
    Publication date: June 7, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventor: Eric Maziers