Patents by Inventor Mickael Bremaud

Mickael Bremaud 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).

  • Process for passivation by a nitrogen-containing compound of a zeolitic catalyst, in particular a hydrocracking catalyst
    Patent number: 9943835
    Abstract: A process for ex-situ treatment of a catalyst that contains at least one hydrogenating phase, and at least one amorphous silica-alumina or a zeolite that contains acid. The process includes: a stage for introducing nitrogen by contact at a temperature that is less than 100° C., with at least one basic nitrogen-containing compound that is ammonia or a compound that can be decomposed into ammonia, the compound being introduced at a rate of 0.5-10% by weight (expressed in terms of N), and a sulfurization/activation stage with a gas that contains hydrogen and hydrogen sulfide at a temperature of at least 250° C., with this stage being carried out before or after the stage for introducing said nitrogen-containing compound, and optionally drying the catalyst that is obtained. This treatment allows a rapid, effective start-up on the hydrocracking unit.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: April 17, 2018
    Assignee: EURECAT S.A.
    Inventors: Pierre Dufresne, Mickaël Bremaud, Pauline Galliou, Sharath Kirumakki
  • Process for passivation by a nitrogen-containing compound of a zeolitic catalyst, in particular a hydrocracking catalyst
    Publication number: 20140042057
    Abstract: The invention relates to a process for ex-situ treatment of a catalyst that contains at least one hydrogenating phase, and at least one amorphous silica-alumina or a zeolite that contains acid sites, whereby said process comprises: A stage for introducing nitrogen by contact at a temperature that is less than 100° C., with at least one basic nitrogen-containing compound that is ammonia or a compound that can be decomposed into ammonia, with said compound being introduced at a rate of 0.5-10% by weight (expressed in terms of N), and A sulfurization/activation stage with a gas that contains hydrogen and hydrogen sulfide at a temperature of at least 250° C., with this stage being carried out before or after the stage for introducing said nitrogen-containing compound, and the catalyst that is obtained is optionally dried. This treatment allows a rapid, effective start-up on the hydrocracking unit.
    Type: Application
    Filed: September 11, 2012
    Publication date: February 13, 2014
    Applicant: EURECAT S.A.
    Inventors: Pierre Dufresne, Mickael Bremaud, Pauline Galliou, Sharath Kirumakki
  • Colour sorting of catalyst or adsorbent particles
    Patent number: 8307985
    Abstract: Process for separating at least one type of catalyst or adsorbent particles having similar colors characterized in that such particles undergo an oxidative heating treatment for generating particle of different colors, and then particles are separated using a color sorting process for separating at least one type of particles.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: November 13, 2012
    Assignee: IFP Energies nouvelles
    Inventors: Pierre Dufresne, Maxime Meens, Mickaël Bremaud
  • COLOUR SORTING OF CATALYST OR ADSORBENT PARTICLES
    Publication number: 20090000992
    Abstract: Process for separating at least one type of catalyst or adsorbent particles having similar colours characterized in that such particles undergo an oxidative heating treatment for generating particle of different colours, and then particles are separated using a colour sorting process for separating at least one type of particles.
    Type: Application
    Filed: June 26, 2008
    Publication date: January 1, 2009
    Inventors: Pierre Dufresne, Maxime Meens, Mickael Bremaud