Steam explosion of straw in batch and continuous systems

被引：37

作者：

Zimbardi, F ^{[1
]}

Viggiano, D ^{[1
]}

Nanna, F ^{[1
]}

Demichele, M ^{[1
]}

Cuna, D ^{[1
]}

Cardinale, G ^{[1
]}

机构：

[1] ENEA, Italian Agcy New Technol Energy & Environm, Renewable Energy Div, Biomass Lab, I-75025 Policoro, MT, Italy

来源：

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY | 1999年 / 77-9卷 / 1-3期

关键词：

enzymatic hydrolysis; steam explosion; straw;

D O I：

10.1385/ABAB:77:1-3:117

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The effects of the steam-explosion treatment on aqueous fractionation and bioconversion of wheat straw have been investigated. The treatments have been carried out in batch and continuous reactors with capacity of 0.5 Kg/cycle and 150 Kg/h, respectively. The exploded materials have been sequentially extracted with water at 65 degrees C and sodium hydroxide 1.5%. Analytical determinations of liquid fractions and solid residues have led to the fractionation pattern of the carbohydrates as monomers, oligomers, and polymers. Evaluations of total acidity, ash content, and lignin recovery have improved understanding of the process. This part of the work has allowed us to derive: the empiric relationship between the batch and the continuous reactors and the yield and availability of pentoses and hexoses in various phases. Selected samples have been tested in enzymatic-hydrolysis experiments, pointing out the effect of treatment severity and reactor used on the saccharification yield.

引用

页码：117 / 125

页数：9

共 13 条

[1] PHENOMENOLOGICAL KINETICS OF COMPLEX-SYSTEMS - THE DEVELOPMENT OF A GENERALIZED SEVERITY PARAMETER AND ITS APPLICATION TO LIGNOCELLULOSICS FRACTIONATION [J].