Patents by Inventor Christine Travers

Christine Travers 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: 7098370
    Abstract: The invention relates to a process for the production of a mixture of compounds that comprises for the most part at least one mono-alkylbenzene that belongs to the group that is formed by the 2-, 3-, 4-, 5- and 6-phenylalkanes by alkylation of benzene with at least one monoolefin that comprises at least two carbon atoms in its molecule, in the presence of a catalyst that comprises 12-tungstophosphoric acid and/or 12-tungstomolybdic acid, deposited on a substrate that develops a large specific surface area and a high pore volume and that comprises a majority proportion of zirconium oxide (ZrO2).
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: August 29, 2006
    Assignee: Institut Francais du Petrole
    Inventors: Christine Travers, Jean-Fransois Joly
  • Patent number: 6916448
    Abstract: For the selective production of propylene from an olefinic C4 fraction, a process is implemented that successively comprises: 1) the selective hydrogenation of butadiene with isomerization of butene-1 into butene-2; 2) the separation by distillation of a mixture that is rich in isobutene and butene-1 at the top and a fraction that is rich in butene-2 at the bottom; 3) the skeletal isomerization of isobutene into n-butenes on the top fraction, with recycling in stage 1; and 4) the metathesis of the butene-2-rich fraction with ethylene. The advantage of this process is to produce in a very selective way polymerization-quality propylene from all of the olefinic compounds of a C4 fraction, including isobutene.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: July 12, 2005
    Assignee: Institut Francais du Petrole
    Inventors: Dominique Commereuc, Christine Travers
  • Patent number: 6743958
    Abstract: For the selective production of propylene from an olefinic C4 fraction, a process is implemented that successively comprises: 1) the selective hydrogenation of butadiene with isomerization of butene-1 into butene-2; 2) the separation by distillation of a mixture that is rich in isobutene and butene-1 at the top and a fraction that is rich in butene-2 at the bottom; 3) the skeletal isomerization of isobutene into n-butenes on the top fraction, with recycling in stage 1; and 4) the metathesis of the butene-2-rich fraction with ethylene.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: June 1, 2004
    Assignee: Institut Francais du Petrole
    Inventors: Dominique Commereuc, Christine Travers
  • Publication number: 20040077909
    Abstract: For the selective production of propylene from an olefinic C4 fraction, a process is implemented that successively comprises:
    Type: Application
    Filed: October 14, 2003
    Publication date: April 22, 2004
    Inventors: Dominique Commereuc, Christine Travers
  • Patent number: 6583330
    Abstract: New catalysts that contain heteropolyanions of the 12-tungstophosphoric acid or the 12-tungstomolybdic acid, and, for some of these, at least one metal of group VIII, and that are deposited on substrates that develop a specific surface area and a high pore volume, such as zirconium oxide (ZrO2), silicas, silica-aluminas or aluminas, are used in particular in isomerization of paraffinic fractions that contain in large part n-paraffins that have, for example, 4 to 8 carbon atoms per molecule and in aliphatic alkylation of isoparaffins (for example isobutane and/or isopentane) by at least one olefin that comprises, for example, 2 to 6 carbon atoms per molecule (C2 to C6).
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: June 24, 2003
    Assignee: Institut Francais du Petrole
    Inventors: Christine Travers, Maryline Delage, Eric Benazzi, Jean-François Joly
  • Publication number: 20030060673
    Abstract: A process for isomerising a feed comprising normal paraffins containing 5 to 8 carbon atoms per molecule as a major portion in the presence of hydrogen is characterized in that the sum of the amounts of normal paraffins containing 7 and 8 carbon atoms per molecule contained in the feed is in the range 2% to 90% by weight with respect to the feed, and in that said feed is treated in at least one reaction zone containing at least one catalyst in a fixed bed, said catalyst comprising a support, at least one halogen and at least one group VIII metal, the reaction being carried out at a temperature in the range 30° C. to 150° C.
    Type: Application
    Filed: November 4, 2002
    Publication date: March 27, 2003
    Applicant: Institute Francais du Petrole
    Inventors: Eric Benazzi, Herve Cauffriez, Olivier Clause, Jean-Francois Joly, Christine Travers
  • Publication number: 20030040653
    Abstract: The invention relates to a process for the production of a mixture of compounds that comprises for the most part at least one mono-alkylbenzene that belongs to the group that is formed by the 2-, 3-, 4-, 5- and 6-phenylalkanes by alkylation of benzene with at least one monoolefin that comprises at least two carbon atoms in its molecule, in the presence of a catalyst that comprises 12-tungstophosphoric acid and/or 12-tungstomolybdic acid, deposited on a substrate that develops a large specific surface area and a high pore volume and that comprises a majority proportion of zirconium oxide (ZrO2).
    Type: Application
    Filed: August 8, 2002
    Publication date: February 27, 2003
    Applicant: Institut Francais du Petrole
    Inventors: Christine Travers, Jean-Francois Joly
  • Publication number: 20020183578
    Abstract: For the selective production of propylene from an olefinic C4 fraction, a process is implemented that successively comprises:
    Type: Application
    Filed: May 2, 2001
    Publication date: December 5, 2002
    Applicant: Institut Francais du Petrole
    Inventors: Dominique Commereuc, Christine Travers
  • Publication number: 20020019307
    Abstract: The invention concerns a process for skeletal isomerisation of linear olefins using a catalyst containing at least one pre-treated molecular sieve selected from the group formed by SAPO-31, SAPO-11, Theta-1, EU-1, omega zeolite, mordenite, Nu-10, Nu-86, Nu-87, ferrierite, ZSM-12 and ZSM-23.
    Type: Application
    Filed: September 11, 1998
    Publication date: February 14, 2002
    Inventors: ERIC BENAZZI, MICHEL GUISNET, CHRISTINE TRAVERS, NGI SUOR GNEP, PATRICIA ANDY
  • Publication number: 20020002319
    Abstract: A process for isomerising a feed comprising normal paraffins containing 5 to 8 carbon atoms per molecule as a major portion in the presence of hydrogen is characterized in that the sum of the amounts of normal paraffins containing 7 and 8 carbon atoms per molecule contained in the feed is in the range 2% to 90% by weight with respect to the feed, and in that said feed is treated in at least one reaction zone containing at least one catalyst in a fixed bed, said catalyst comprising a support, at least one halogen and at least one group VIII metal, the reaction being carried out at a temperature in the range 30° C. to 150° C.
    Type: Application
    Filed: November 25, 1998
    Publication date: January 3, 2002
    Inventors: ERIC BENAZZI, HERVE CAUFFRIEZ, OLIVIER CLAUSE, JEAN-FRANCOIS JOLY, CHRISTINE TRAVERS
  • Patent number: 6297418
    Abstract: The invention concerns a catalyst containing at least one halogen, at least one metal from group VIII and a formed support comprising gamma alumina and optionally eta alumina, the catalyst being characterized in that the smallest average dimension of said support is in the range 0.8 mm to 2 mm and in that the halogen content is in the range 4.5% to 15% by weight. The invention also concerns the preparation of said catalyst, preferably with chlorination (in the case where the halogen is chlorine) in the presence of CCl4 or CHCl3. The invention also concerns the use of the catalyst for the isomerisation of normal C4-C6 paraffins.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: October 2, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Hervé Cauffriez, Christine Travers
  • Patent number: 6121186
    Abstract: The invention concerns a catalyst composed of at least one halogen, at least one metal from group VIII and a formed support of gamma alumina and optionally eta alumina, the catalyst being characterized in that the smallest average dimension of said support is in the range 0.8 mm to 2 mm and in that the halogen content is in the range 4.5% to 15% by weight. The invention also concerns the preparation of said catalyst, preferably with chlorination (in the case where the halogen is chlorine) in the presence of CCl.sub.4 or CHCl.sub.3. The invention also concerns the use of the catalyst for the isomerisation of normal C.sub.4 -C.sub.6 paraffins.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: September 19, 2000
    Assignee: Institut Francais du Petrole
    Inventors: Herve Cauffriez, Christine Travers
  • Patent number: 6084141
    Abstract: The invention concerns a reactive distillation process comprising a distillation zone, associated with a reaction zone which is at least in part internal to said distillation zone and comprises at least one catalytic bed in which the feed is transformed in the presence of a catalyst and at least one gas stream containing hydrogen, characterized in that each catalytic bed in the internal portion of said reaction zone is traversed by said gas stream and liquid in ascending co-current mode. The invention particularly concerns selective hydrogenation processes for light unsaturated hydrocarbons, mainly any olefins and benzene, comprised in a mixture, the major portion of which is constituted by hydrocarbons containing at least five carbon atoms per molecule.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: July 4, 2000
    Assignee: Institut Fran.cedilla.ais du Petrole
    Inventors: Paul Mikitenko, Christine Travers, Jean Cosyns, Charles Cameron, Jean-Luc Nocca, Francoise Montecot, Jean-Charles Viltard, Michel Dorbon, Blaise DiDillon
  • Patent number: 6054630
    Abstract: For the treatment of a feed comprising a major portion of olefinic hydrocarbons containing 4 carbon atoms per molecule, including isobutene, 1-butene and 2-butenes in a ratio which substantially corresponds to the thermodynamic equilibrium, in which the feed is treated in a distillation zone comprising a stripping zone and a rectification zone associated with at least one hydroisomerization reaction zone, the hydroisomerization reaction zone being at least partially internal to the distillation zone and comprising at least one catalytic bed, in which hydroisomerization of at least a portion of 1-butene is carried out in the presence of a hydroisomerization catalyst and at least one gas stream comprising hydrogen, such that an effluent rich in isobutene leaves the distillation zone overhead and an effluent rich in 2-butenes leaves the bottom, the process being characterized in that each catalytic bed in the internal portion of the hydroisomerization zone is traversed by an ascending co-current of the gas strea
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: April 25, 2000
    Assignee: Institut Francais Du Petrole
    Inventors: Paul Mikitenko, Christine Travers, Jean Cosyns, Charles Cameron, Jean-Luc Nocca, Francoise Montecot, Jean-Charles Viltard, Michel Dorbon, Blaise Didillon
  • Patent number: 6048450
    Abstract: A process for treating a feed comprising C.sub.5.sup.+ hydrocarbons and comprising at least one unsaturated C.sub.6.sup.+ compound including benzene, is such that the feed is treated in a distillation zone, associated with a hydrogenation zone, comprising at least one catalytic bed, in which the hydrogenation is carried out of unsaturated C.sub.6.sup.+ compounds contained in the feed, and whereof a charge for the hydrogenation step is removed at the height of a removal level and represents at least part of the liquid flowing in the distillation zone, and the effluent from the hydrogenation reaction zone is at least in part reintroduced into the distillation zone to ensure continuity of the distillation operation, the effluents at the top and bottom on the distillation zone being very depleted of unsaturated C.sub.6.sup.+ compounds. The effluent drawn off from the top of the distillation zone is treated in a zone for the isomerisation of C.sub.5 and/or C.sub.6 paraffins.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: April 11, 2000
    Assignee: Institut Francais du Petrole
    Inventors: Paul Mikitenko, Christine Travers, Jean Cosyns, Charles Cameron, Jean-Luc Nocca, Fran.cedilla.oise Montecot
  • Patent number: 5948948
    Abstract: The invention concerns a process for isomerising a feed containing essentially hydrocarbons, preferably paraffins preferably containing 5 and/or 6 carbon atoms per molecule, in which said feed is treated in a distillation zone comprising an exhausting zone and a rectification zone associated with an isomerisation reaction zone, in the presence of an isomerisation catalyst and a gas stream containing hydrogen, characterized in that the reaction zone is at least partially internal to the distillation zone, and wherein the hydrogen-containing gas is fed by a dedicated gas distributor to the bottom of at least one catalytic bed within the isomerization reaction zone.
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: September 7, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Etienne Lebas, Sophie Jullian, Christine Travers, Pierre Capron, Jean-Fran.cedilla.ois Joly, Michel Thery
  • Patent number: 5888355
    Abstract: The invention concerns a reactive distillation apparatus comprising a distillation zone, associated with a reaction zone which is at least in part internal to said distillation zone and comprises at least one catalytic bed in which the feed is transformed in the presence of a catalyst and at least one gas stream containing hydrogen, characterized in that each catalytic bed in the internal portion of said reaction zone is traversed by said gas stream and liquid in ascending co-current mode.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: March 30, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Paul Mikitenko, Christine Travers, Jean Cosyns, Charles Cameron, Jean-Luc Nocca, Francoise Montecot, Jean-Charles Viltard, Michel Dorbon, Blaise Didillon
  • Patent number: 5866746
    Abstract: The present invention concerns, in the dehydroisomerization of at least one C.sub.4 -C.sub.5 n-paraffin, preferably n-butane, the use of a catalyst comprising a refractory oxide based support, preferably an alumina, at least one precious metal from group VIII, preferably platinum or palladium, optionally at least one element from group IVB such as titanium or zirconium, preferably titanium, optionally at least one element from the group formed by germanium, tin, lead, rhenium, tungsten and indium, and optionally at least one halogen such as chlorine. The present invention also concerns the regeneration of this catalyst.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: February 2, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Blaise Didillion, Christine Travers, Jean-Pierre Burzynski
  • Patent number: 5817227
    Abstract: The invention is concerned with a process for treating a charge of which the major part is constituted by hydrocarbons comprising at least 5 carbon atoms per molecule and comprising at least one unsaturated compound comprising at the most six carbon atoms per molecule including benzene, such that said charge is treated in a distillation zone, comprising a drainage zone and a stripping zone, associated with a hydrogenation reaction zone, comprising at least one catalytic bed, in which hydrogenation is carried out of at least part of the unsaturated compounds comprising at the most six carbon atoms per molecule and contained in the charge, the charge of said reaction zone being removed at the height of a removal level and representing at least a part of the liquid flowing in the distillation zone, the effluent of the reaction zone being at least partly reintroduced into the distillation zone, in such a way as to ensure the continuity of the distillation operation and in such a way as to remove from the top of t
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: October 6, 1998
    Assignee: Institut Francais du Petrole
    Inventors: Paul Mikitenko, Christine Travers, Jean Cosyns, Charles Cameron, Jean-Luc Nocca, Fran.cedilla.oise Montecot
  • Patent number: 5817907
    Abstract: The invention concerns a process for skeletal isomerization of linear olefins using a catalyst containing at least one pre-treated molecular sieve selected from the group formed by SAPO-31, SAPO-11, Theta-1, EU-1, omega zeolite, mordenite, Nu-10, Nu-86, Nu-87, ferrierite, ZSM-12 and ZSM-23. The pre-treatment process consists in bringing the molecular sieve, which has a pore size of 0.4 to 0.8 nm, into contact with at least one hydrocarbon molecule containing 4 to 20 carbon atoms, at a space velocity of 0.1-45 h.sup.-1, a temperature of 300.degree.-550.degree. C. and at a pressure of 0.1-1 MPa, for 0.5-48 h, to deposit coke in the pores. The process is of particular application to one-dimensional sieves. It is preferably carried out outside the reaction zone. The invention also concerns a catalyst containing a pre-treated sieve, the sieve being selected from SAPO-31, SAPO-11, Theta-1, EU-1, omega zeolite, mordenite, ferrierite, Nu-10, Nu-86 and Nu-87.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: October 6, 1998
    Assignee: Institut Francais du Petrole
    Inventors: Eric Benazzi, Michel Guisnet, Christine Travers, Ngi Suor Gnep, Patricia Andy