Hydrolysis kinetics of tulip tree xylan in hot compressed water
| Autor: | Youn-Woo Lee, Aye Aye Myint, Seungjae Sim, Hun Wook Lee, Junho Yoon, Hee Jeong Park |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Environmental Engineering Liriodendron Xylan (coating) Biomass Lignocellulosic biomass Oligosaccharides Bioengineering 010501 environmental sciences 01 natural sciences Hydrolysis Bioreactors 010608 biotechnology Bioreactor Waste Management and Disposal 0105 earth and related environmental sciences Waste management Renewable Energy Sustainability and the Environment Chemistry Temperature Water General Medicine Pulp and paper industry Kinetics Yield (chemistry) Xylans Xylooligosaccharide Renewable resource Biotechnology |
| Zdroj: | Bioresource technology. 214 |
| ISSN: | 1873-2976 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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