Patents by Inventor Melvyn B. Pell

Melvyn B. Pell 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 injecting particulate material into a fluidized bed reactor
    Patent number: 5968460
    Abstract: The present invention is a process for feeding particulate material to a fluidized bed reactor operated at greater than atmospheric through a standpipe wherein the ratio of the absolute pressure where the standpipe enters the fluidized bed reactor to the absolute pressure where the particulate material enters the standpipe is at least about 1.5 and gas is injected into the standpipe at a velocity which is about 20-80 percent of the minimum fluidization velocity of the particulate material.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: October 19, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Donald H. Eastham, Ted M. Knowlton, Melvyn B. Pell, James W. Reeves
  • Process for reducing carbon monoxide and carbonyl sulfide emissions from a fluidized bed titanium dioxide chlorinator
    Patent number: 5585078
    Abstract: In a process for chlorinating titanium containing material in a fluidized bed reactor which evolves gaseous material including CO, COS, and TiCl.sub.4, the improvement comprising introducing oxygen containing gas at a location or locations which are downstream of the surface of the bed, as measured in its static condition, to convert at least some CO to CO.sub.2 and some COS to CO.sub.2 and SO.sub.2.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: December 17, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul G. Reis, Melvyn B. Pell, David N. Low, Hans H. Glaeser
  • Method for recovering hydrocarbons from molten metal halides
    Patent number: 4132628
    Abstract: In a process for hydrocracking heavy carbonaceous materials by contacting such carbonaceous materials with hydrogen in the presence of a molten metal halide catalyst to produce hydrocarbons having lower molecular weights and thereafter recovering the hydrocarbons so produced from the molten metal halide, an improvement comprising injecting into the spent molten metal halide, a liquid low-boiling hydrocarbon stream is disclosed.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: January 2, 1979
    Assignees: Continental Oil Company, The United States of America as represented by the United States Department of Energy
    Inventor: Melvyn B. Pell