×

Process For Concentrated Biomass Saccharification

  • US 20090053777A1
  • Filed: 08/22/2007
  • Published: 02/26/2009
  • Est. Priority Date: 08/22/2007
  • Status: Active Grant
First Claim
Patent Images

1. A process for producing high-sugar content hydrolysate from biomass comprising:

  • a) providing a portion of reaction components in a vertical stirred tank reactor having a particle size reduction mechanism, said reaction components comprising;

    i) a portion of a mixable pretreated biomass slurry; and

    ii) a portion of a first saccharification enzyme consortium comprising at least one enzyme capable of hydrolyzing cellulose;

    b) reacting said slurry and enzymes under suitable conditions;

    c) applying the particle size reduction mechanism;

    d) adding an additional portion of pretreated biomass producing a higher solids biomass slurry;

    e) optionally adding an additional portion of a saccharification enzyme consortium;

    f) reacting said higher solids biomass slurry under suitable conditions; and

    g) optionally repeating one or more steps (c), (d), (e), and (f) one or more times,whereby a high sugar content hydrolysate is produced and wherein the yield stress of the slurry is maintained at less than 30 Pa.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×