Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Kinetic study of hydrolysis of xylan and agricultural wastes with hot liquid water | |
| Zhuang, Xinshu1; Yuan, Zhenhong1; Ma, Longlong1; Wu, Chuangzhi1; Xu, Mingzhong2; Xu, Jingliang1; Zhu, Shunni1; Qi, Wei1 | |
| 2009-09-01 | |
| 发表期刊 | BIOTECHNOLOGY ADVANCES
 |
| ISSN | 0734-9750 |
| 卷号 | 27期号:5页码:578-582 |
| 通讯作者 | yuanzh@ms.giec.ac.cn |
| 摘要 | We investigated the kinetics of hot liquid water (HLW) hydrolysis over a 60-min period using a self-designed setup. The reaction was performed within the range 160-220 degrees C, under reaction conditions of 4.0 MPa, a 1:20 solid:liquid ratio (g/mL), at 500 rpm stirring speed. Xylan was chosen as a model compound for hemicelluloses, and two kinds of agricultural wastes-rice straw and palm shell-were used as typical feedstocks representative of herbaceous and woody biomasses, respectively. The hydrolysis reactions for the three kinds of materials followed a first-order sequential kinetic model, and the hydrolysis activation energies were 65.58 kJ/mol for xylan, 68.76 kJ/mol for rice straw, and 95.19 kJ/mol for palm shell. The activation energies of sugar degradation were 147.21 kJ/mol for xylan, 47.08 kJ/mol for rice straw and 79.74 kJ/mol for palm shell. These differences may be due to differences in the composition and construction of the three kinds of materials. In order to reduce the decomposition of sugars, the hydrolysis time of biomasses such as rice straw and palm shell should be strictly controlled. (C) 2009 Elsevier Inc. All rights reserved. |
| 文章类型 | Article |
| 其他摘要 | We investigated the kinetics of hot liquid water (HLW) hydrolysis over a 60-min period using a self-designed setup. The reaction was performed within the range 160-220 °C, under reaction conditions of 4.0 MPa, a 1:20 solid:liquid ratio (g/mL), at 500 rpm stirring speed. Xylan was chosen as a model compound for hemicelluloses, and two kinds of agricultural wastes-rice straw and palm shell-were used as typical feedstocks representative of herbaceous and woody biomasses, respectively. The hydrolysis reactions for the three kinds of materials followed a first-order sequential kinetic model, and the hydrolysis activation energies were 65.58 kJ/mol for xylan, 68.76 kJ/mol for rice straw, and 95.19 kJ/mol for palm shell. The activation energies of sugar degradation were 147.21 kJ/mol for xylan, 47.08 kJ/mol for rice straw and 79.74 kJ/mol for palm shell. These differences may be due to differences in the composition and construction of the three kinds of materials. In order to reduce the decomposition of sugars, the hydrolysis time of biomasses such as rice straw and palm shell should be strictly controlled. |
| 关键词 | Xylan Rice Straw Palm Shell Hot Liquid Water (Hlw) Kinetics Hydrolysis |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| DOI | 10.1016/j.biotechadv.2009.04.019 |
| 研究领域[WOS] | Biotechnology & Applied Microbiology |
| URL | 查看原文 |
| 关键词[WOS] | LIGNOCELLULOSIC BIOMASS ; BY-PRODUCTS ; AUTOHYDROLYSIS ; PRETREATMENT ; ETHANOL |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS类目 | Biotechnology & Applied Microbiology |
| WOS记录号 | WOS:000267741300008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.giec.ac.cn/handle/344007/3326 |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.CAS, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Pearl River Planning Surveying & Design Co Ltd, Guangzhou 510610, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhuang, Xinshu,Yuan, Zhenhong,Ma, Longlong,et al. Kinetic study of hydrolysis of xylan and agricultural wastes with hot liquid water[J]. BIOTECHNOLOGY ADVANCES,2009,27(5):578-582. |
| APA | Zhuang, Xinshu.,Yuan, Zhenhong.,Ma, Longlong.,Wu, Chuangzhi.,Xu, Mingzhong.,...&Qi, Wei.(2009).Kinetic study of hydrolysis of xylan and agricultural wastes with hot liquid water.BIOTECHNOLOGY ADVANCES,27(5),578-582. |
| MLA | Zhuang, Xinshu,et al."Kinetic study of hydrolysis of xylan and agricultural wastes with hot liquid water".BIOTECHNOLOGY ADVANCES 27.5(2009):578-582. |
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