两种树皮热解微晶结构及生物油组分对比

王文亮; 虞宇翔; 常建民; 白甜甜

两种树皮热解微晶结构及生物油组分对比

北京林业大学材料科学与技术学院, 北京 100083

基金项目: 国家高技术研究发展计划(863 计划, 2012AA101808-06);北京市教委科学研究与研究生培养共建项目。

详细信息

通讯作者:
常建民,教授,E-mail:cjianmin@bjfu.edu.cn。

中图分类号: TK6
计量
- 文章访问数: 1235
- HTML全文浏览量: 18
- PDF下载量: 828
- 被引次数: 0
出版历程
- 收稿日期: 2013-02-28
- 修回日期: 2013-04-22
- 刊出日期: 2013-11-30

Comparative analysis of micro-crystal structures and bio-oils from pyrolyisis of two barks

College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China

摘要

摘要: 以针叶材杉木树皮和阔叶材桉木树皮为原料,利用X射线衍射 (XRD) 对两种树皮热解前后固体颗粒微晶结构的变化进行了比较,利用气质联用 (GC-MS)、凝胶渗透色谱 (GPC) 等手段对两种树皮生物油组分进行了对比分析。结果表明,两种树皮中的纤维结构及脂肪链结构在热解过程中发生了分解,基本被破坏。杉木树皮和桉木树皮生物油主要组分相似,含有酸类、酮类、酚类、醇类、醛类、糖类、酯类等类物质,但相对含量存在差异;桉木树皮相对杉木树皮热解生成了较多的酸类、酮类物质,而酚类、醇类、糖类物质相对较少。两种树皮生物油中酚类物质占有较大的比例,以苯酚和邻苯二酚为主。两种树皮生物油主要物质分子量集中在300~500 g/mol,但桉木树皮生物油中分子量在300~500 g/mol的相对含量 (48.18%) 相比杉木树皮 (61.14%) 较少。
- 杉木树皮 /
- 桉木树皮 /
- 生物油 /
- 组分分析
Abstract: Using softwood bark of Chinese fir and hardwood bark of eucalyptus as raw materials, the variation of their micro-crystal structures before and after pyrolysis was compared using X-ray diffraction. The components of bio-oils from 2 barks were analyzed contrastively with gas chromatograph-mass spectrometer and gel permeation chromatography. The results show that fiber structures and fatty chain structures in the bark are decomposed and destroyed. The main components of bio-oils, containing acids, ketones, phenols, alcohols, aldehydes, sugars and esters, are similar between the Chinese fir bark and eucalyptus bark, but the relative concentrations are different. On the contrary, the pyrolysis of eucalyptus bark produces more acids and ketones than Chinese fir bark, but phenols, alcohols and sugars are just the reverse. The phenols account for a large proportion of bio-oils, especially phenol and catechol. The molecular weight of bio-oils obtained from the bark is mainly concentrated from 300 to 500 g/mol; however, the relative concentration of eucalyptus bark (48.18%) is less than that of Chinese fir bark (61.14%).
- Chinese fir bark /
- eucalyptus bark /
- bio-oil /
- components analysis

HTML全文

参考文献(14)

BA T Y, CHAALA A, GARCIA P M, ROY C. Colloidal properties of bio-oils obtained by vacuum pyrolysis of softwood bark: Storage stability[J]. Energy Fuels, 2004, 18(1): 188-201.

BA T Y, CHAALA A, GARCIA P M, RODRIGUE D, ROY C. Colloidal properties of bio-oils obtained by vacuum pyrolysis of softwood bark: Characterization of water-soluble and water-insoluble fractions[J]. Energy Fuels, 2004, 18(3): 704-712.

INGRAM L, MOHAN D, BRICKA M, STEELE P, STROBEL D, CROCKER D, MITCHELL B, MOHAMMAD J, CANTRELL K, PITTMAN C U. Pyrolysis of wood and bark in an auger reactor: Physical properties and chemical analysis of the produced bio-oils[J]. Energy Fuels, 2008, 22(1): 614-625.

王鹏起, 常建民, 王雨, 李瑞, 任学勇, 赵金平. 落叶松木材生物油组分分析和表征[J]. 农业工程学报, 2010, 26(S2): 269-273. (WANG Peng-qi, CHANG Jian-min, WANG Yu, LI Rui, REN Xue-yong, ZHAO Jin-ping. Analysis and characterization of component for bio-oil from Larchwood[J]. Transactions of the CSAE, 2010, 26(S2): 269-273.)

常胜, 赵增立, 张伟, 郑安庆, 吴文强, 李海滨. 不同种类生物油化学组成结构的对比研究[J]. 燃料化学学报, 2011, 39(10): 746-753. (CHANG Sheng, ZHAO Zeng-li, ZHANG Wei, ZHENG An-qing, WU Wen-qiang, LI Hai-bin. Comparison of chemical composition and structure of different kinds of bio- oils[J]. Journal of Fuel Chemistry and Technology, 2011, 39(10): 746-753.)

张怡, 陈登宇, 张栋, 朱锡锋. 生物油TG-FTIR分析及热解气化特性研究[J]. 燃料化学学报, 2012, 40(10): 1194-1199. (ZHANG Yi, CHEN Deng-yu, ZHANG Dong, ZHU Xi-feng. TG-FTIR analysis of bio-oil and its pyrolysis/gasification property[J]. Journal of Fuel Chemistry and Technology, 2012, 40(10): 1194-1199.)

吕高金. 玉米杆及其主要组分的热解规律与生物油特征组分的定量分析[D]. 广州: 华南理工大学, 2012. (LV Gao-jin. Pyrolysis characteristics of corn stalk and its main components and quantitative analysis of major components of bio oils. Guangzhou: South China University of Technology, 2012.)

WANG Z Y, CAO J Q, WANG J. Pyrolytic characteristics of pine wood in a slowly heating and gas sweeping fixed-bed reactor[J]. J Anal Appl Pyrolysis, 2009, 84(2): 179-184.

王大鸷, 田亚峻, 谢克昌. 煤在氢氩等离子体中热解固相产物的XRD分析[J]. 煤炭转化, 2002, 25(2): 47-59. (WANG Da-zhi, TIAN Ya-jun, XIE Ke-chang. XRD study on solid products of plasma pyrolysis of coal[J]. Coal Conversion, 2002, 25(2): 47-59.)

林郁郁, 张楚, 张健, 章明川. CaO伴随生物质热裂解固体产物分析[J]. 工程热物理学报, 2011, 32(12): 2133-2136. (LIN Yu-yu, ZHANG Chu, ZHANG Jian, ZHANG Ming-chuan. XRD and FTIR analysis of the pyrolysis products of biomass accompanied by CaO[J]. Jounal of Engineering Thermophysics, 2011, 32(12): 2133-2136.)

彭云云, 武书彬. 麦草半纤维素的快速热裂解实验研究[J]. 燃料化学学报, 2011, 39(1): 21-25. (PENG Yun-yun, WU Shu-bin. Fast pyrolysis of hemicellulose in wheat straw[J]. Journal of Fuel Chemistry and Technology, 2011, 39(1): 21-25.)

何明明, 景亮晶, 李瑞, 常建民, 张立塔. 4种不同原料生物油的主要化学组分分析[J]. 可再生能源, 2010, 28(6): 103-105. (HE Ming-ming, JING Liang-jing, LI Rui, CHANG Jian-min, ZHANG Li-ta. Analysis on the main chemical components in bio-oil from frour different materials[J]. Renewable Energy Resources, 2010, 28(6): 103-105.)

SCHOLZE B, HANSER C, MEIER D. Characterization of the water-insoluble fraction from pyrolysis oil (pyrolytic lignin). Part Ⅱ. GPC, carbonyl groups, and ¹³C-NMR[J]. J Anal Appl Pyrolysis, 2001, 58-59(1): 387-400.

彭定茂, 张守玉, 王秀军, 王健, 谷立莹, 刘洋, 戴锋. 矿物质组分对低品位生物质热解过程的影响[J]. 环境科学学报, 2011, 31(10): 2275-2281. (PENG Ding-mao, ZHANG Shou-yu, WANG Xiu-jun, WANG Jian, GU Li-ying, LIU Yang, DAI Feng. Effect of minerals on the pyrolysis of low-quality biomass[J]. Acta Scientiae Circumstantiae, 2011: 31(10): 2275-2281.)

施引文献

资源附件(0)

访问统计