Patents by Inventor Paul S. Fountain

Paul S. Fountain 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 and method for optimizing a liquefied natural gas facility
    Patent number: 7946127
    Abstract: At least one model is associated with one or more manipulated variables and one or more controlled variables, which are associated with a cascade liquefied natural gas facility. Adjustments to the one or more manipulated variables are made using the at least one model to maintain the one or more controlled variables within defined limits. For example, a controlled variable may identify an overall load placed on multiple refrigeration systems in the facility. The one or more manipulated variables may be adjusted to increase the overall load placed on the refrigeration systems. The overall load can be determined by identifying a maximum of: a projected feed gas rate to operate a propane refrigeration system at maximum load, a projected feed gas rate to operate an ethylene or ethane refrigeration system at maximum load, and a projected feed gas rate to operate a methane refrigeration system at maximum load.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: May 24, 2011
    Assignee: Honeywell International Inc.
    Inventor: Paul S. Fountain
  • Apparatus and method for optimizing a liquefied natural gas facility
    Publication number: 20080202159
    Abstract: At least one model is associated with one or more manipulated variables and one or more controlled variables, which are associated with a cascade liquefied natural gas facility. Adjustments to the one or more manipulated variables are made using the at least one model to maintain the one or more controlled variables within defined limits. For example, a controlled variable may identify an overall load placed on multiple refrigeration systems in the facility. The one or more manipulated variables may be adjusted to increase the overall load placed on the refrigeration systems. The overall load can be determined by identifying a maximum of: a projected feed gas rate to operate a propane refrigeration system at maximum load, a projected feed gas rate to operate an ethylene or ethane refrigeration system at maximum load, and a projected feed gas rate to operate a methane refrigeration system at maximum load.
    Type: Application
    Filed: February 21, 2007
    Publication date: August 28, 2008
    Applicant: Honeywell International Inc.
    Inventor: Paul S. Fountain