Patents by Inventor Gerardo Arreaza

Gerardo Arreaza 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).

  • Hydrotreating catalyst and method
    Publication number: 20050098480
    Abstract: A method is provided for hydrofeeding a diesel feedstock, which method includes the steps of providing a feedstock containing a Diesel feed fraction and sulfur; and feeding the feedstock to a hydrotreating reactor containing a catalyst selective toward Cetane Index improving reactions and hydrodesulfurization reactions so as to provide a product stream containing an improved Diesel fraction having an increased Cetane Index as compared to the Diesel Feed fraction, wherein the catalyst is substantially resistant to sulfur deactivation.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 12, 2005
    Inventors: Robert Galiasso, Gerardo Arreaza, Samuel Quenza, Sandra Ramnarine
  • Process scheme for sequentially treating diesel and vacuum gas oil
    Patent number: 6676828
    Abstract: A process for treating a vacuum gas oil and Diesel feed includes the steps of providing reaction feed containing vacuum gas oil, Diesel and sulfur-containing compounds; providing a stripping gas; providing a washing feed; and mixing the reaction feed, the stripping gas and the washing feed in a stripping and washing zone so as to obtain a gas phase containing the sulfur-containing compounds and a liquid phase substantially free of the sulfur-containing compounds. The washing feed comprises at least one of Diesel, light vacuum gas oil and mixtures thereof produced in the process or added from external source.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: January 13, 2004
    Assignee: Intevep, S.A.
    Inventors: Roberto Galiasso, Eusebio Palmisano, Gerardo Arreaza, Samuel Quenza, Sandra Ramnarine