期刊
BIORESOURCE TECHNOLOGY
卷 101, 期 2, 页码 674-678出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2009.08.082
关键词
Lignocellulosic biomass; Corn stover; Pretreatment; Feedstock variability; Reactivity
资金
- National Renewable Energy Laboratory
- United States Department of Energy's Office
This study assessed the impact of corn stover compositional variability on xylose conversion yields during dilute acid pretreatment and on enzymatic cellulose digestibility of the resulting pretreated solids. Seven compositionally-different stovers obtained from various locations throughout the United States were pretreated at three different conditions in triplicate in a pilot-scale continuous reactor. At the same pretreatment severity, a 2-fold increase in monomeric xylose yield and a 1.5-fold increase in enzymatic cellulose digestibility from their lowest values were found. Similar results were observed at the other pretreatment conditions. It was found that xylose conversion yields decreased with increasing acid neutralization capacity or soil content of the corn stover. Xylose yields also increased with increasing xylan content. No other significant correlations between corn stover's component concentrations and conversion yields were found. (C) 2009 Elsevier Ltd. All rights reserved.
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