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: 9609885Abstract: 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: GrantFiled: October 11, 2012Date of Patent: April 4, 2017Assignee: DSM IP ASSETS B.V.Inventors: Sylvain Diguet, Bruno H. Leuenberger, Fabien Laboulfie, Mehrdji Hemati
-
Patent number: 9321683Abstract: 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: GrantFiled: May 11, 2012Date of Patent: April 26, 2016Assignees: LAFARGE, INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE (INPT), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)Inventors: Michel Gimenez, Mehrdji Hemati
-
Patent number: 9267709Abstract: 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: GrantFiled: October 13, 2011Date of Patent: February 23, 2016Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSEInventors: Gilles Flamant, Mehrdji Hemati
-
Patent number: 9200164Abstract: 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: GrantFiled: April 21, 2011Date of Patent: December 1, 2015Assignee: DSM IP ASSETS B.V.Inventors: Sylvain Diguet, Bruno Leuenberger, Fabien Laboulfie, Mehrdji Hémati, Alain Lamure
-
Patent number: 9090413Abstract: 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: GrantFiled: October 19, 2010Date of Patent: July 28, 2015Assignee: Rio Tinto Alcan International LimitedInventors: Geoffrey Petit, Mehrdji Hemati, Jean-Marc Rousseaux
-
Publication number: 20140242179Abstract: 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: ApplicationFiled: October 11, 2012Publication date: August 28, 2014Applicant: DSM IP ASSETS B.V.Inventors: Sylvain Diguet, Bruno H. Leuenberger, Fabien Laboulfie, Mehrdji Hemati
-
Publication number: 20140072484Abstract: 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: ApplicationFiled: May 11, 2012Publication date: March 13, 2014Applicants: LAFARGE, INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE (INPT), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)Inventors: Michel Gimenez, Mehrdji Hemati
-
Publication number: 20130284163Abstract: 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: ApplicationFiled: October 13, 2011Publication date: October 31, 2013Applicant: Intitut National Polytechnique De ToulouseInventors: Gilles Flamant, Mehrdji Hemati
-
Publication number: 20130189312Abstract: 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: ApplicationFiled: April 21, 2011Publication date: July 25, 2013Inventors: Sylvain Diguet, Bruno Leuenberger, Fabien Laboulfie, Mehrdji Hémati, Alain Lamure
-
Patent number: 8425159Abstract: 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: GrantFiled: June 26, 2008Date of Patent: April 23, 2013Assignee: Rio Tinto Alcan International LimitedInventors: Raymond Roumieu, Mehrdji Hemati, Cécile Plais, Jean-Marc Rousseaux, Christian Cloue
-
Publication number: 20120230778Abstract: 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: ApplicationFiled: October 19, 2010Publication date: September 13, 2012Applicant: RIO TINTO ALCAN INTERNATIONAL LIMITEDInventors: Geoffrey Petit, Mehrdji Hemati, Jean-Marc Rousseaux
-
Publication number: 20120016170Abstract: 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: ApplicationFiled: August 19, 2009Publication date: January 19, 2012Applicant: IFP Energies nouvellesInventors: Samy Ould-Chikh, Antoine Fecant, Loic Rouleau, Lars Fischer, Mehrdji Hemati
-
Publication number: 20100189518Abstract: 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: ApplicationFiled: June 26, 2008Publication date: July 29, 2010Applicant: ALCAN INTERNATIONAL LIMITEDInventors: Raymond Roumieu, Mehrdji Hemati, Cécile Plais, Jean-Marc Rousseaux, Christian Cloue
-
Publication number: 20040235650Abstract: 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: ApplicationFiled: June 15, 2004Publication date: November 25, 2004Inventors: Khashayar Saleh, Florence Cordier, Daniel Steinmetz, Mehrdji Hemati, Silvia Gomez Gallardo, Bruno Chaudret, Karine Philippot