Patents by Inventor David Parro

David Parro 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).

  • Method of separating COfrom hydrocarbon gas
    Patent number: 7152430
    Abstract: A method of separating CO2 from a hydrocarbon gas inlet stream that is within predetermined pressure and temperature ranges including the steps of subjecting the inlet stream to fractional distillation providing a bottom product stream and a distillation overhead stream, passing the distillation overhead stream to a membrane unit producing a CO2 by-product stream and a hydrocarbon stream and chilling the hydrocarbon stream to produce a reflux liquid stream and a hydrocarbon gas product.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: December 26, 2006
    Assignee: National Tank Company
    Inventor: David Parro
  • Membrane/distillation method and system for extracting CO2 from hydrocarbon gas
    Patent number: 7124605
    Abstract: A method of separating CO2 from a hydrocarbon gas inlet stream that is within predetermined pressure and temperature ranges, including the steps of subjecting the inlet stream to fractional distillation providing a CO2 bottom product stream and a distillation overhead stream, passing the distillation overhead stream to the inlet of a primary reflux drum producing a primary reflux liquid stream and a hydrocarbon vapor stream, subjecting the hydrocarbon vapor stream to membrane separation to provide a hydrocarbon product stream and a permeate stream, compressing the permeate stream and recycling the compressed permeate stream to the inlet of the primary reflux drum thereby providing a CO2 liquid product and a hydrocarbon gas product.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: October 24, 2006
    Assignee: National Tank Company
    Inventors: David Parro, Edgar S. Sanders, Jr.
  • Membrane/distillation method and system for extracting CO2 from hydrocarbon gas
    Publication number: 20050092594
    Abstract: A method of separating CO2 from a hydrocarbon gas inlet stream that is within predetermined pressure and temperature ranges, including the steps of subjecting the inlet stream to fractional distillation providing a CO2 bottom product stream and a distillation overhead stream, passing the distillation overhead stream to the inlet of a primary reflux drum producing a primary reflux liquid stream and a hydrocarbon vapor stream, subjecting the hydrocarbon vapor stream to membrane separation to provide a hydrocarbon product stream and a permeate stream, compressing the permeate stream and recycling the compressed permeate stream to the inlet of the primary reflux drum thereby providing a CO2 liquid product and a hydrocarbon gas product.
    Type: Application
    Filed: October 30, 2003
    Publication date: May 5, 2005
    Inventors: David Parro, Edgar Sanders