Patents Examined by Amaha Santiago
  • Method and apparatus for gas phase polymerization of olefins in vertically stacked reactors
    Patent number: 5143705
    Abstract: A method and apparatus are disclosed for producing polyolefins by a fluidized gas phase polymerization process utilizing two stacked, substantially vertically aligned, reactors and a substantially vertical product transfer line for transfer of intermediate polyolefin polymer product from the polymerization zone of the upper reactor to the polymerization zone of the lower reactor. This abstract shall not be construed to define or limit in any way the scope of the invention, which is measured solely by the appended claims.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: September 1, 1992
    Assignee: Brown & Root USA, Inc.
    Inventor: Gerald M. Platz
  • Apparatus for hydrogenating hydrocarbons
    Patent number: 5133941
    Abstract: An improved process and apparatus for hydrogenating a stream of hydrocarbons is provided. The pressure and temperature of the stream are elevated and the stream is passed through two or more serially connected hydrogenation reaction zones. While passing through the reaction zones hydrogen is dispersed in the stream and the stream is caused to flow along successive downward and upward paths. The reacted stream is cooled prior to reducing the pressure exerted thereon.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: July 28, 1992
    Assignee: Phillips Petroleum Company
    Inventors: George E. Hays, Theodore M. Classen
  • Batch treatment process and apparatus for the disinfection of infectious waste
    Patent number: 5077007
    Abstract: A process and apparatus for the batch treatment of infectious waste material in a fluidized bed reactor utilizing gas oxidation, preferably ozone gas diluted in air. The process and apparatus provide for the disinfecting of infectious waste in a rapid, cost efficient manner allowing for disposal of such infectious waste material in an environmentally acceptable manner.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: December 31, 1991
    Inventor: Erich H. Pearson
  • Process and apparatus for regeneration of FCC catalyst
    Patent number: 5063028
    Abstract: Reduced thermal overstressing and cracking in the cone of a high efficiency regenerator for fluidized catalytic cracking catalyst is achieved by providing a cylindrical skirt at the base of the cone. The skirt defines an annular space which allows for expansion of the cone during changes in temperature of the regenerator. A catalytic cracking process using the regenerator is also disclosed.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: November 5, 1991
    Assignee: Mobil Oil Corporation
    Inventors: John D. Humble, Raymond C. Searles, John D. Ruggles, Judah L. Jacobowitz
  • Apparatus for liquid feed dispersion in fluid catalytic cracking systems
    Patent number: 5061457
    Abstract: Apparatus for liquid feed dispersion in fluid catalytic cracking systems is disclosed wherein an improved fluidized catalytic cracking nozzle assembly having a nozzle unit so constructed that substantially all liquid fed through the unit is converted to mist-sized particles over a wide-angle dispersion pattern, the unit being recessed within a protective pipe having a shield on the inside thereof in the area of the recess, without concurrent addition of steam to affect liquid that may flow therethrough.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: October 29, 1991
    Assignee: Chevron Research & Technology Company
    Inventors: C. Richard Hsieh, Desmond F. King, Frederick A. Pettersen, Cathleen A. Shargay