Patents Assigned to Harris Group, Inc.
  • Patent number: 7077953
    Abstract: An acid recovery system used in a hydrolysis operation includes a chromatographic unit to provide initial separation of sugar and acid. The sugar product provided by the chromatographic unit is processed to produce higher value products, such as ethanol. The remaining acid is contaminated by sugar. A nanofiltration unit containing a nanofilter membrane processes the sugar contaminated acid. The acid is allowed to permeate across the nanofilter membrane while sugar is rejected. The permeate is provided to a conventional acid recovery system and recycled for use in the hydrolysis process.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: July 18, 2006
    Assignee: Harris Group, Inc.
    Inventor: Jeffrey T. Ranney
  • Publication number: 20050056600
    Abstract: An acid recovery system used in a hydrolysis operation includes a chromatographic unit to provide initial separation of sugar and acid. The sugar product provided by the chromatographic unit is processed to produce higher value products, such as ethanol. The remaining acid is contaminated by sugar. A nanofiltration unit containing a nanofilter membrane processes the sugar contaminated acid. The acid is allowed to permeate across the nanofilter membrane while sugar is rejected. The permeate is provided to a conventional acid recovery system and recycled for use in the hydrolysis process.
    Type: Application
    Filed: September 11, 2003
    Publication date: March 17, 2005
    Applicant: Harris Group Inc.
    Inventor: Jeffrey Ranney