Patents by Inventor M. M. Ramirez de Agudelo

M. M. Ramirez de Agudelo 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).

  • Catalyst for the simultaneous hydrodemetallization and hydroconversion of heavy hydrocarbon feedstocks
    Patent number: 4832829
    Abstract: An improved catalyst for use in the hydrodemetallization and hydroconversion of heavy hydrocarbon feedstocks and method of making same and, more particularly, an improved catalyst having two distinct phases supported on a refractory support wherein the first phase effectively stores metals removed from the feedstock and the second phase exhibits superior catalytic acitivity for hydrogenation when processing heavy hydrocarbon feedstocks.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: May 23, 1989
    Assignee: Intevep S.A.
    Inventors: M. M. Ramirez de Agudelo, C. E. Galarraga
  • Regeneration of an iron based natural catalyst used in the hydroconversion of heavy crudes and residues
    Patent number: 4751210
    Abstract: A process for regenerating a spent, naturally occurring catalyst characterized by an iron content of about 10 to 70 wt. % as metal comprises contacting the spent catalyst with a mixture of water vapor and air in a water vapor/air ratio of between 1:1 to 20:1 at a flow rate of about 0.1 to 50 l/min., a temperature of about 200.degree. to 700.degree. C., a pressure of about 0.3 to 80 atmospheres for a time of about 0.1 to 20 hours so as to obtain a regenerated catalyst having a crystallinity value of about 1.0 to 6.5.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: June 14, 1988
    Assignee: Intevep, S.A.
    Inventors: M. M. Ramirez de Agudelo, Jose M. Larrauri Derteano, Julio Krasuk
  • Catalyst for the simultaneous hydrodemetallization and hydroconversion of heavy hydrocarbon feedstocks and process for preparing the catalyst
    Patent number: 4729980
    Abstract: An improved catalyst for use in the hydrodemetallization and hydroconversion of heavy hydrocarbon feedstocks and method of making same and, more particularly, an improved catalyst having two distinct phases supported on a refractory support wherein the first phase effectively stores metals removed from the feestock and the second phase exhibits superior catalytic activity for hydrogenation when processing heavy hydrocarbon feedstocks.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: March 8, 1988
    Assignee: Intevep, S.A.
    Inventors: M. M. Ramirez de Agudelo, C. E. Galarraga