Methods for increasing sugar yield with size-adjusted lignocellulosic biomass particles
First Claim
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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Abstract
A method of increasing sugar yield in a bioproduct production process is provided comprising pretreating one or more size-adjusted lignocellulosic biomass (LCB) particles with a pretreatment, such as an ammonia pretreatment, wherein the one or more size-adjusted LCB particles form a substrate, with the one or more particles having an average particle size in at least one dimension greater than 5 mm.
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Citations
17 Claims
- 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.
- 14. A method comprising pretreating one or more size-adjusted lignocellulosic biomass (LCB) particles with a pretreatment 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 greater than 0.5 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 an average particle size in at least one dimension less than 0.5 cm, and 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.
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