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Methods for increasing sugar yield with size-adjusted lignocellulosic biomass particles

  • US 10,202,660 B2
  • Filed: 03/01/2013
  • Issued: 02/12/2019
  • Est. Priority Date: 03/02/2012
  • Status: Expired due to Fees
First Claim
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1. A method comprising pretreating size-adjusted lignocellulosic biomass (LCB) particles with a pretreatment process to produce pretreated size-adjusted LCB particles which form a substrate, wherein said size-adjusted LCB particles have an average particle size in at least one dimension from about 1 cm to about 10 cm, wherein said pretreated size-adjusted LCB particles produce a higher sugar yield in a downstream bio-product production process as compared to pretreated LCB particles having a smaller or larger average particle size, wherein a glucan loading during hydrolysis in the downstream bio-product production process is from about 1% to about 9%, wherein the pretreatment process is a high severity ammonia fiber expansion (AFEX) pretreatment process selected from gaseous ammonia, aqueous ammonia, anhydrous liquid ammonia, and extractive ammonia, and wherein the downstream bio-product production process produces a bio-product.

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