Hydrolysis kinetics of tulip tree xylan in hot compressed water.
Bioresour Technol
; 214: 679-685, 2016 Aug.
Article
em En
| MEDLINE
| ID: mdl-27208738
ABSTRACT
Lignocellulosic biomass, a promising renewable resource, can be converted into numerous valuable chemicals post enzymatic saccharification. However, the efficacy of enzymatic saccharification of lignocellulosic biomass is low; therefore, pretreatment is necessary to improve the efficiency. Here, a kinetic analysis was carried out on xylan hydrolysis, after hot compressed water pretreatment of the lignocellulosic biomass conducted at 180-220°C for 5-30min, and on subsequent xylooligosaccharide hydrolysis. The weight ratio of fast-reacting xylan to slow-reacting xylan was 5.25 in tulip tree. Our kinetic results were applied to three different reaction systems to improve the pretreatment efficiency. We found that semi-continuous reactor is promising. Lower reaction temperatures and shorter space times in semi-continuous reactor are recommended for improving xylan conversion and xylooligosaccharide yield. In the theoretical calculation, 95% of xylooligosaccharide yield and xylan conversion were achieved simultaneously with high selectivity (desired product/undesired product) of 100 or more.
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Base de dados:
MEDLINE
Assunto principal:
Xilanos
/
Biotecnologia
/
Liriodendron
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article