Patents by Inventor Mehrdji Hemati

Mehrdji Hemati 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: 9609885
    Abstract: The present patent application relates to a novel coating system, coated compositions with such a coating system, as well as to the use of such compositions in the production food, feed, dietary supplements and/or pharmaceutical products, as well as to food, feed, dietary supplements and/or pharmaceutical products comprising such compositions.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: April 4, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: Sylvain Diguet, Bruno H. Leuenberger, Fabien Laboulfie, Mehrdji Hemati
  • Patent number: 9321683
    Abstract: A process for decarbonation of particles of raw meal, to be burnt in a clinkering kiln at a cement plant, the process includes: a) decarbonation of particles of raw meal, in a fluidized bed heat exchanger, the particles being suspended in a rising carrier gas including carbon dioxide, the fluidized bed heat exchanger having a solid heat carrier circulating counter-current relative to the carrier gas, to provide an effluent gas including carbon dioxide and decarbonated raw meal; b) separating the effluent gas and the decarbonated raw meal c) separating the effluent gas into a first and second part; cooling the first part of the effluent gas and recycling to provide carrier gas, d) isolating the second part of effluent gas e) recovering and re-heating the heat carrier and recirculating to step (a).
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: April 26, 2016
    Assignees: LAFARGE, INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE (INPT), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Michel Gimenez, Mehrdji Hemati
  • Patent number: 9267709
    Abstract: The invention relates to a device for collecting solar energy (1), characterized in that it includes at least one solar receiver (2) including at least one suspension of solid particles fluidized by a gas, each suspension circulating between an inlet and an outlet of the receiver (2), wherein the volume of particles is between 40% and 55% of the volume of the suspension, and the average size of the particles is between 20 and 150 ?m.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: February 23, 2016
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE
    Inventors: Gilles Flamant, Mehrdji Hemati
  • Patent number: 9200164
    Abstract: The present patent application relates to a novel coating system, coated compositions with such a coating system, as well as to the use of such compositions in the production food, feed, dietary supplements and/or pharmaceutical products, as well as to food, feed, dietary supplements and/or pharmaceutical products comprising such compositions.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: December 1, 2015
    Assignee: DSM IP ASSETS B.V.
    Inventors: Sylvain Diguet, Bruno Leuenberger, Fabien Laboulfie, Mehrdji Hémati, Alain Lamure
  • Patent number: 9090413
    Abstract: Device for transporting powder comprising a conveyer, which includes a lower channel in which a gas circulates, and an upper channel, designed for the circulation of powder and said gas, said lower channel and said upper channel being separated by a porous wall that said gas can pass through, the lower channel being supplied with gas at a pressure allowing the potential fluidization of said powder in said upper channel, said upper channel being provided in its upper part with transverse walls placed so that they delimit with the upper wall of said upper channel at least one upper zone in which a gas bubble under pressure is formed as a result of putting said air chute under potential fluidization pressure. At the level of at least one bubble so formed, the wall of the upper channel includes a means of removal for fluidization gas provided with a means of creating pressure drop, which creates a substantially constant pressure drop.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: July 28, 2015
    Assignee: Rio Tinto Alcan International Limited
    Inventors: Geoffrey Petit, Mehrdji Hemati, Jean-Marc Rousseaux
  • Publication number: 20140242179
    Abstract: The present patent application relates to a novel coating system, coated compositions with such a coating system, as well as to the use of such compositions in the production food, feed, dietary supplements and/or pharmaceutical products, as well as to food, feed, dietary supplements and/or pharmaceutical products comprising such compositions.
    Type: Application
    Filed: October 11, 2012
    Publication date: August 28, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Sylvain Diguet, Bruno H. Leuenberger, Fabien Laboulfie, Mehrdji Hemati
  • Publication number: 20140072484
    Abstract: A process for decarbonation of particles of raw meal, to be burnt in a clinkering kiln at a cement plant, the process includes: a) decarbonation of particles of raw meal, in a fluidised bed heat exchanger, the particles being suspended in a rising carrier gas including carbon dioxide, the fluidised bed heat exchanger having a solid heat carrier circulating counter-current relative to the carrier gas, to provide an effluent gas including carbon dioxide and decarbonated raw meal; b) separating the effluent gas and the decarbonated raw meal c) separating the effluent gas into a first and second part; cooling the first part of the effluent gas and recycling to provide carrier gas, d) isolating the second part of effluent gas e) recovering and re-heating the heat carrier and recirculating to step (a).
    Type: Application
    Filed: May 11, 2012
    Publication date: March 13, 2014
    Applicants: LAFARGE, INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE (INPT), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Michel Gimenez, Mehrdji Hemati
  • Publication number: 20130284163
    Abstract: The invention relates to a device for collecting solar energy (1), characterized in that it includes at least one solar receiver (2) including at least one suspension of solid particles fluidized by a gas, each suspension circulating between an inlet and an outlet of the receiver (2), wherein the volume of particles is between 40% and 55% of the volume of the suspension, and the average size of the particles is between 20 and 150 ?m.
    Type: Application
    Filed: October 13, 2011
    Publication date: October 31, 2013
    Applicant: Intitut National Polytechnique De Toulouse
    Inventors: Gilles Flamant, Mehrdji Hemati
  • Publication number: 20130189312
    Abstract: The present patent application relates to a novel coating system, coated compositions with such a coating system, as well as to the use of such compositions in the production food, feed, dietary supplements and/or pharmaceutical products, as well as to food, feed, dietary supplements and/or pharmaceutical products comprising such compositions.
    Type: Application
    Filed: April 21, 2011
    Publication date: July 25, 2013
    Inventors: Sylvain Diguet, Bruno Leuenberger, Fabien Laboulfie, Mehrdji Hémati, Alain Lamure
  • Patent number: 8425159
    Abstract: A process for transporting a powder material, in which a device is fitted between a supply zone and a zone to be supplied, the device including at least one substantially horizontal conveyor which includes a lower duct and an upper duct being separated by a porous wall, the upper duct provided with a balancing column. The upper duct is filled with powder material and the lower duct is supplied with gas at a pressure that allows the potential fluidization of the powder material in the upper duct. The minimal bubbling speed, which corresponds to the maximum void fraction, is determined and the fluidization pressure is set to a value such that the fluidization speed of the gas is between 0.8 and 1.5 times the minimal bubbling speed, preferably between 0.9 and 1.3 times the minimal bubbling speed.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: April 23, 2013
    Assignee: Rio Tinto Alcan International Limited
    Inventors: Raymond Roumieu, Mehrdji Hemati, Cécile Plais, Jean-Marc Rousseaux, Christian Cloue
  • Publication number: 20120230778
    Abstract: Device for transporting powder comprising a conveyer, which includes a lower channel in which a gas circulates, and an upper channel, designed for the circulation of powder and said gas, said lower channel and said upper channel being separated by a porous wall that said gas can pass through, the lower channel being supplied with gas at a pressure allowing the potential fluidization of said powder in said upper channel, said upper channel being provided in its upper part with transverse walls placed so that they delimit with the upper wall of said upper channel at least one upper zone in which a gas bubble under pressure is formed as a result of putting said air chute under potential fluidization pressure. At the level of at least one bubble so formed, the wall of the upper channel includes a means of removal for fluidization gas provided with a means of creating pressure drop, which creates a substantially constant pressure drop.
    Type: Application
    Filed: October 19, 2010
    Publication date: September 13, 2012
    Applicant: RIO TINTO ALCAN INTERNATIONAL LIMITED
    Inventors: Geoffrey Petit, Mehrdji Hemati, Jean-Marc Rousseaux
  • Publication number: 20120016170
    Abstract: A process is described for preparing a spherical material comprising a porous core coated with a continuous and homogeneous porous layer, the degree of attrition of said material being less than 20%. Said preparation process comprises a) bringing a bed of spherical particles constituting the core of said material into contact with a suspension containing an inorganic binder in order to form a solid having a pre-layer around said core; b) bringing the solid derived from step a) into contact, in a stream of hot air, with a powder constituted by spherical particles of an inorganic oxide and a suspension containing an inorganic binder and an organic binder in order to form a solid the core of which is coated with at least one continuous and homogeneous porous layer, the ratio of the (mass of anhydrous inorganic binder/volume of powder particles) being in the range 0.05 to 1 g.mL?1; c) drying the solid derived from said step b); and d) calcining the solid derived from said step c).
    Type: Application
    Filed: August 19, 2009
    Publication date: January 19, 2012
    Applicant: IFP Energies nouvelles
    Inventors: Samy Ould-Chikh, Antoine Fecant, Loic Rouleau, Lars Fischer, Mehrdji Hemati
  • Publication number: 20100189518
    Abstract: A process making it possible to transport by potential fluidization, a powder material, in which a device is fitted between the supply zone, typically a storage zone for said powder material, and the zone to be supplied, said device including at least one substantially horizontal conveyor, called an “air chute”, which includes a lower duct designed for the circulation of a gas and an upper duct designed for the circulation of the powder material, said lower duct and said upper duct being separated by a porous wall that said gas can pass through, a process in which the upper duct is filled with said powder material and the lower duct is supplied with gas at a pressure that allows the potential fluidization of said powder material in said upper duct said upper duct being provided with at least one balancing column.
    Type: Application
    Filed: June 26, 2008
    Publication date: July 29, 2010
    Applicant: ALCAN INTERNATIONAL LIMITED
    Inventors: Raymond Roumieu, Mehrdji Hemati, Cécile Plais, Jean-Marc Rousseaux, Christian Cloue
  • Publication number: 20040235650
    Abstract: The invention concerns a method for preparing supported nanoparticles comprising the following steps: introducing in an adequate solvent a metallic co-ordination complex capable of being decomposed at a temperature less than 200° C, optionally in the presence of a gas reactive under reactive gas pressure less than 3 bars; spraying the resulting preparation in conditions avoiding its decomposition in a fluidised bed containing suspended porous support grains, then breaking down the metallic co-ordination complex optionally in the presence of a reactive gas.
    Type: Application
    Filed: June 15, 2004
    Publication date: November 25, 2004
    Inventors: Khashayar Saleh, Florence Cordier, Daniel Steinmetz, Mehrdji Hemati, Silvia Gomez Gallardo, Bruno Chaudret, Karine Philippot