Comparison of lab, pilot, and industrial scale low consistency mechanical refining for improvements in enzymatic digestibility of pretreated hardwood

被引：30

作者：

Jones, Brandon W. ^{[1
]}

Venditti, Richard ^{[1
]}

Park, Sunkyu ^{[1
]}

Jameel, Hasan ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Forest Biomat, Raleigh, NC 27695 USA

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 167卷

基金：

美国农业部;

关键词：

Hardwood biomass; Biochemical conversion; Mechanical refining; Enzymatic hydrolysis; Water retention value (WRV); GREEN LIQUOR PRETREATMENT; HYDROLYSIS;

D O I：

10.1016/j.biortech.2014.06.026

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Mechanical refining has been shown to improve biomass enzymatic digestibility. In this study industrial high-yield sodium carbonate hardwood pulp was subjected to lab, pilot and industrial refining to determine if the mechanical refining improves the enzymatic hydrolysis sugar conversion efficiency differently at different refining scales. Lab, pilot and industrial refining increased the biomass digestibility for lignocellulosic biomass relative to the unrefined material. The sugar conversion was increased from 36% to 65% at 5 FPU/g of biomass with industrial refining at 67.0 kWh/t, which was more energy efficient than lab and pilot scale refining. There is a maximum in the sugar conversion with respect to the amount of refining energy. Water retention value is a good predictor of improvements in sugar conversion for a given fiber source and composition. Improvements in biomass digestibility with refining due to lab, pilot plant and industrial refining were similar with respect to water retention value. Published by Elsevier Ltd.

引用

页码：514 / 520

页数：7

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