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题名: Hydrolysis of hemicellulose catalyzed by hierarchical H-USY zeolites - The role of acidity and pore structure
作者: Zhou, Lipeng1;  Shi, Meiting1;  Cai, Qiyong1;  Wu, Lin1;  Hu, Xiaopeng1;  Yang, Xiaomei1;  Chen, Chen2;  Xu, Jie2
关键词: Hierarchical zeolites ;  Hemicellulose ;  Hydrolysis ;  Biomass
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2013-03-15
DOI: 10.1016/j.micromeso.2012.10.003
卷: 169, 页:54-59
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: Hierarchical H-USY zeolite prepared by oxalic acid treatment was demonstrated to be an effective catalyst for the hydrolysis of hemicellulose. The yield of total reducing sugars (TRS) increased remarkably to 55.7% over hierarchical H-USY compared with 5.8% yield of TRS over H-USY-parent under the same reaction conditions. Mesopores/macropores created by oxalic acid treatment played a main role in elevation of the yield of TRS, which not only improved the accessibility of the acid sites, but also facilitated the product to diffuse out the catalyst and thus restrained its further conversion to byproducts. Conditions of oxalic acid treatment for preparation of hierarchical H-USY zeolite and hydrolysis of hemicellulose were optimized to obtain high yield of TRS. Furthermore, hierarchical H-USY zeolite showed good activity in the selective hydrolysis of hemicellulose in lignocellulosic biomass. (C) 2012 Elsevier Inc. All rights reserved.
关键词[WOS]: MOLECULAR-SIEVES ;  IONIC LIQUID ;  SOLID ACIDS ;  CELLULOSE ;  DEALUMINATION ;  OLIGOSACCHARIDES ;  SACCHARIDES ;  MESOPORES ;  TRANSPORT ;  GLUCOSE
语种: 英语
WOS记录号: WOS:000314384800008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137761
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Zhou, Lipeng,Shi, Meiting,Cai, Qiyong,et al. Hydrolysis of hemicellulose catalyzed by hierarchical H-USY zeolites - The role of acidity and pore structure[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2013,169:54-59.
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