[1]周雷宇,王萌,吴昊,等.操作参数对生物质热解液化及焦炭特征的影响[J].南京师范大学学报(工程技术版),2011,11(04):029-33.
 Zhou Leiyu,Wang Meng,Wu Hao,et al.Impact of Operation Factors on Biomass Pyrolysis and the Characteristics of Bio-Char[J].Journal of Nanjing Normal University(Engineering and Technology),2011,11(04):029-33.
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操作参数对生物质热解液化及焦炭特征的影响
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南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
11卷
期数:
2011年04期
页码:
029-33
栏目:
出版日期:
2011-12-31

文章信息/Info

Title:
Impact of Operation Factors on Biomass Pyrolysis and the Characteristics of Bio-Char
作者:
周雷宇王萌吴昊张海茹杨宏旻
南京师范大学能源与机械工程学院,江苏南京210042
Author(s):
Zhou LeiyuWang MengWu HaoZhang HairuYang Hongmin
School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210042,China
关键词:
生物质热解操作参数焦炭
Keywords:
biomasspyrolysisoperation factorsbio-char
分类号:
X712
摘要:
以稻壳为研究对象,在固定床中热解制取液体生物油.实验研究了热解温度、氮气流速和升温速率对热解3种产物分布的影响.在25℃/min的升温速率达到热解终温550℃,氮气流速为150 mL/min工况下液体产率达到最大值49.91%.随着升温速率的增加液体产率升高,焦炭的产率降低.利用热重分析考察了原料的热分解特性.通过X射线衍射方法和SEM对热解焦炭的晶相和形态进行分析.研究表明热解温度对焦炭的晶相和表面形态的影响很大,在550℃的热解温度下得到的焦炭有较突出孔状结构.
Abstract:
The experiments of the rice husk pyrolysis were performed in a fixed-bed reactor to produce bio-oil. The effects of the different operation factors such as pyrolysis temperature,sweeping gas ( N2 ) flow rates and heating rates on the yields of three products and the characteristics of bio-char were investigated. The maximum bio-oil yield of 49. 91% was obtained at 550℃ pyrolysis temperature with a heating rate of 25℃ /min and nitrogen flow rate of 150 mL/min. As the heating rate increased,it favored the yields of liquid product,yet the bio-char yields decreased. Thermogravimetric analysis ( TGA) was introduced to study the thermal decomposition of the feedstock. Crystals and morphology of bio-char with different pyrolysis temperatures were characterized by X-ray diffraction ( XRD) and scanning electron microscopy ( SEM) analysis. The results showed that pyrolysis temperatures played an important role on the surface morphology and crystal phase of bio-char and the prominent porosity with the bio-char which was generated under 550℃ pyrolysis temperature was observed.

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金( 50976049) 、江苏省自然科学基金( BK2011788) .
通讯联系人: 杨宏旻,工学博士,教授,研究方向: 燃烧污染物控制理论与技术. E-mail: yanghongmin@ njnu. edu. Cn
更新日期/Last Update: 2013-03-21