×

Corn stover biomass feedstocks with uniform particle size distribution profiles at retained field moisture contents

  • US 9,440,237 B2
  • Filed: 04/01/2015
  • Issued: 09/13/2016
  • Est. Priority Date: 04/22/2010
  • Status: Active Grant
First Claim
Patent Images

1. A corn stover particle feedstock characterized by a substantially uniform size distribution profile as determined by the following protocol:

  • drying approximately 1000 g of the corn stover particle feedstock to constant weight at 110°

    F.;

    pouring 400 g of the dried corn stover particles into a stacked screen assembly consisting of in a contiguous size-ordered array;

    a top ⅜

    -inch screen having 9.53 mm nominal sieve openings,a No. 4 screen having 4.75 mm nominal sieve openings,a No. 10 screen having 2.00 mm nominal sieve openings,a No. 16 screen having 1.18 mm nominal sieve openings,a No. 20 screen having 0.84 mm nominal sieve openings,a No. 35 screen having 0.50 mm nominal sieve openings,a No. 50 screen having 0.30 mm nominal sieve openings,a No. 100 screen having 0.15 mm nominal sieve openings, and a bottom pan;

    shaking the stacked screen assembly for 10 minutes on a motorized tapping sieve shaker;

    weighing corn stover particles retained on each of the screens; and

    determining that the corn stover particle feedstock is characterized by a substantially uniform size distribution profile if the sum of the weights of corn stover particles retained on any contiguous five of the screens exceeds 320 g in total.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×