Patents by Inventor Kjetil Evenmo

Kjetil Evenmo 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 for dewatering a mixture of mostly ethanol and water
    Patent number: 8425733
    Abstract: Method for dewatering a mixture of mostly ethanol and water which is split into a first partial feed flow (3) that is directed to a distillation column (32) as a reflux flow while a second partial feed flow (4) is directed to an evaporator unit (31) as an evaporator inlet flow and leaves the top of the evaporator unit as an evaporator outlet flow (6). A top discharge flow (7) from distillation column (32) is returned and combined with the evaporator outlet flow (6) to a combined flow (8) at an overpressure and which in a compressor unit (33) is compressed to a combined, compressed flow (10) which enters a dewatering unit (34) in which it is split into a water-rich permeate flow (14) and a retentate flow (11) in the form of substantially water free ethanol.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: April 23, 2013
    Assignee: Epcon Energy and Process Control AS
    Inventors: Geir Halvorsen, Kjetil Evenmo, Carl Ivar Gotaas
  • METHOD FOR DEWATERING A MIXTURE OF MOSTLY ETHANOL AND WATER
    Publication number: 20100270139
    Abstract: Method for dewatering a mixture of mostly ethanol and water which is split into a first partial feed flow (3) that is directed to a distillation column (32) as a reflux flow while a second partial feed flow (4) is directed to an evaporator unit (31) as an evaporator inlet flow and leaves the top of the evaporator unit as an evaporator outlet flow (6). A top discharge flow (7) from distillation column (32) is returned and combined with the evaporator outlet flow (6) to a combined flow (8) at an overpressure and which in a compressor unit (33) is compressed to a combined, compressed flow (10) which enters a dewatering unit (34) in which it is split into a water-rich permeate flow (14) and a retentate flow (11) in the form of substantially water free ethanol.
    Type: Application
    Filed: October 9, 2008
    Publication date: October 28, 2010
    Applicant: EPCON ENERGY & PROCESS CONTROL AS
    Inventors: Geir Halvorsen, Kjetil Evenmo, Carl Ivar Gotaas