Patents by Inventor Thomas E. Hewitt

Thomas E. Hewitt 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: 7407572
    Abstract: This invention relates to an apparatus and process for atomizing a petroleum feed. More particularly, a liquid petroleum feed is atomized with an atomization apparatus in which the apparatus has an orifice that produces a generally flat spray pattern of finely dispersed feed prior to contacting catalyst in a fluid catalytic cracking zone. The orifice has a general aspect ratio greater than 1.0 and a ratio of perimeter length-to-cross-sectional area greater than 1.5 relative to a perimeter-to-cross-sectional area ratio of a circular orifice of equivalent area. The apparatus can be used to atomize feed injected into the cracking zone of a fluid catalytic cracker.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: August 5, 2008
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Todd R. Steffens, Thomas E. Hewitt, Rathna P. Davuluri, Enrique Feliz
  • Publication number: 20030099586
    Abstract: Gold oxide is precipitated together with iron oxide from a solution containing a gold source and an iron source; the gel formed thereby is washed, dried, ground to a size range of 0.85 mm to 4.25 mm and calcined; then used as a catalyst for oxidizing CO to CO2 in the presence of a large excess of hydrogen.
    Type: Application
    Filed: November 29, 2001
    Publication date: May 29, 2003
    Applicant: Pressure Chemical Co.
    Inventors: Joseph Pugach, Thomas E. Hewitt