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题名: Catalytic effects of eight inorganic additives on pyrolysis of pine wood sawdust by microwave heating
作者: Chen, Ming-qiang1;  Wang, Jun1;  Zhang, Ming-xu1;  Chen, Ming-gong1;  Zhu, Xi-feng2;  Min, Fan-fei1;  Tan, Zhi-cheng3
通讯作者: 谭志诚
关键词: pyrolysis ;  pine wood ;  biomass ;  microwave ;  additives
刊名: JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
发表日期: 2008-05-01
DOI: 10.1016/j.jaap.2008.03.001
卷: 82, 期:1, 页:145-150
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1504
产权排名: 3;7
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Analytical ;  Spectroscopy
研究领域[WOS]: Chemistry ;  Spectroscopy
英文摘要: In this paper, pyrolysis of pine wood sawdust was carried out by microwave heating at ca. 470 degrees C under dynamic nitrogen atmosphere. Eight inorganic additives (NaOH, Na2CO3, Na2SiO3, NaCl, TiO2, HZSM-5, H3PO4, Fe-2(SO4)(3)) were investigated in terms of their catalytic effects on the pyrolysis. All of the eight additives have increased yields of solid products greatly and decreased yields of gaseous products more or less. Yields of liquid products have not subjected to dramatic change. The incondensable gases produced from pyrolysis consist mainly of H-2, CH4, CO and CO2. All of the eight additives have made these gases evolve earlier, among which the four sodium additives have the most marked effect. All the additives have made the amount of CH4 and CO2 decrease, while all of them except NaCl, TiO2 and Fe-2(SO4)(3) have made that of H-2 increase and all of them except Na2SiO3 and HZSM-5 have made that of CO decrease. Alkaline sodium compounds NaOH, Na2CO3 and Na2SiO3 favor H-2 formation most. The most abundant organic component in the liquid products from pyrolysis of untreated sample and samples treated by all the additives except H3PO4 and Fe-2(SO4)(3) is acetol. All the four sodium compounds favor acetol formation reaction and the selection increasing effect follows the order of NaOH > Na2CO3 approximate to Na2SiO3 > NaCl. TiO2 goes against the formation of acetol, HZSM-5 has no marked effect on acetol formation. The two dominant organic components identified in the liquid products from pyrolysis of H3PO4 and Fe-2(SO4)(3) treated samples are both fufural and 4-methyl-2-methoxy-phenol. A possible pathway for acetol formation is tentatively proposed. (C) 2008 Elsevier B.V. All rights reserved.
关键词[WOS]: BIOMASS ;  CELLULOSE ;  ACID ;  MASS ;  OIL ;  LEVOGLUCOSAN ;  HYDROLYSIS ;  CONVERSION ;  KINETICS ;  STRAW
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000257005900014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100407
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.Anhui Univ Sci & Technol, Dept Chem & Mat Engn, Huainan 232001, Anhui, Peoples R China
2.Univ Sci & Technol China, Lab Biomass Clean Energy, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Chen, Ming-qiang,Wang, Jun,Zhang, Ming-xu,et al. Catalytic effects of eight inorganic additives on pyrolysis of pine wood sawdust by microwave heating[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2008,82(1):145-150.
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