Patents by Inventor Charles V. Sternling

Charles V. Sternling 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).

  • Apparatus for preventing slag tap blockage
    Patent number: 5437699
    Abstract: The slag tap of a gasifier is offset from the geometrical axis. Coalescent, molten, residual ash from incomplete combustion is directed to a hearth where residence time provides further combustion and a reduction in the volume and temperature of the resulting slag. The reduced volume and temperature ash is then directed to a slag tap after which disposal is accomplished by conventional means.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: August 1, 1995
    Inventor: Charles V. Sternling
  • Heat exchanger and method for removing deposits from inner surfaces thereof
    Patent number: 5287915
    Abstract: Hot fluids are cooled in a heat exchanger which comprises a housing providing a passage for the hot fluid, and heat exchange surfaces arranged within the housing which surfaces provide a passage for a coolant to and from the housing such that there is no direct contact between the hot fluid and the coolant, and which surfaces are movable within the housing. The heat exchanger is very suitable for cooling synthesis gas obtained in the gasification of coal.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: February 22, 1994
    Assignee: Shell Oil Company
    Inventors: Chih-Hsiung F. Liu, Lloyd A. Clomburg, Jr., Otto E. Crenwelge, Jr., William G. Gottenberg, Charles V. Sternling
  • Apparatus for preventing slag tap blockage
    Patent number: 4979964
    Abstract: The slag tap of a gasifier is offset from the geometrical axis. Coalescent, molten, residual ash from incomplete combustion is directed to a hearth where residence time provides further combustion and a reduction in the volume and temperature of the resulting slag. The reduced volume and temperature ash is then directed to a slag tap after which disposal is accomplished by conventional means.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: December 25, 1990
    Assignee: Shell Oil Company
    Inventor: Charles V. Sternling
  • Coal gasification process
    Patent number: 4963162
    Abstract: A process for the gasification of coal is disclosed, the process being characterized by the removal of flyslag deposits in the quench zone of the process by temporary reduction or stoppage of the flow of the quench gas to melt the deposits, and by diversion of a portion or all of the quench gas during the reduction or stoppage to a locus between the quench zone and the heat exchange zone.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: October 16, 1990
    Assignee: Shell Oil Company
    Inventor: Charles V. Sternling
  • Process for gasification of coal utilizing reactor protected interally with slag coalescing materials
    Patent number: 4959080
    Abstract: A process and reaction for the gasification of coal disclosed, the invention being characterized by the provision in each of a plurality of layers of slag coalescing materials on the inner liner of the reactor to provide a protective coating on the wall or walls of the reactor.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: September 25, 1990
    Assignee: Shell Oil Company
    Inventor: Charles V. Sternling
  • Process for inhibition of flyslag deposits
    Patent number: 4897090
    Abstract: Fouling or plugging of surfaces in the heat exchange zone following a coal gasification reaction zone caused by deposition of flyslag is inhibited by addition of an amount of graphite to the synthesis gas at a suitable locus or loci.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: January 30, 1990
    Assignee: Shell Oil Company
    Inventors: Chih-hsiung F. Liu, Charles V. Sternling
  • Slag water bath process
    Patent number: 4852997
    Abstract: A method and apparatus for separating slag discharged from a coal gasification reactor to a slag water bath by converging the flow of the slag with a chamber at least partially submerged in the slag water bath such that the flow of slag is converged to a diameter no greater than the diameter of the discharge opening of the slag water bath.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: August 1, 1989
    Assignee: Shell Oil Company
    Inventors: Clifford C. Segerstrom, Charles V. Sternling, Hans-Wolfgang Luke, Hsi L. Wu
  • Coal gasification burner
    Patent number: 4775314
    Abstract: A transpiration-protected burner for coal gasification in which a gas such as steam, product synthesis gas or nitrogen is introduced through a porous wall immediately surrounding the openings through which coal and oxygen are introduced.
    Type: Grant
    Filed: January 6, 1987
    Date of Patent: October 4, 1988
    Assignee: Shell Oil Company
    Inventor: Charles V. Sternling