| 油菜秸秆真空热解液化生物油分析与表征 |
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| 引用本文： | 樊永胜,蔡忆昔,李小华,张蓉仙,尹海云,俞宁.油菜秸秆真空热解液化生物油分析与表征[J].农业机械学报,2014,45(6):206-211. |
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| 作者姓名： | 樊永胜 蔡忆昔 李小华 张蓉仙 尹海云 俞宁 |
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| 作者单位： | 江苏大学;江苏大学;江苏大学;江苏大学;江苏大学;江苏大学 |
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| 基金项目： | 国家自然科学基金资助项目（51276085）、江苏省自然科学基金资助项目（BK2011488）、江苏省高校优势学科建设资助项目（苏政办发\[2011\]6号）和江苏省重点实验室开放课题资助项目（QK13005） |
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| 摘 要： | 以油菜秸秆为原料,利用GC-MS对真空热解制取的生物原油(BC)进行了成分测定,利用FT-IR和GPC对BC的低沸组分(LBF)和高沸组分(HBF)以及老化90d后的均相老化组分(HAF)和粘稠沉淀组分(TDF)进行了化学结构组成和平均分子量及分散度分析。研究结果表明,BC含有水、烷烃、酚、醇、酮、醛、羧酸、酯和芳香族类等物质;BC在分馏和老化过程中各官能团上电子剧烈运动,加强了分子间的作用力,内部各成分之间易相互反应,造成各组分与BC间存在差异;BC和LBF接近单分散体系,HBF、HAF和TDF均为多分散体系,分子量分散度分别达到15.85、7.91和20.86;BC化学稳定性较差,需对BC进行提质改性提高其稳定性,以实现其高品质利用。
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| 关 键 词： | 油菜秸秆 真空热解 生物油 分馏 老化 |
| 收稿时间： | 2013/7/31 0:00:00 |
Analysis and Characterization of Bio-oil Produced from Vacuum Pyrolysis of Rape Straw |
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| Fan Yongsheng,Cai Yixi,Li Xiaohu,Zhang Rongxian,Yin Haiyun and Yu Ning.Analysis and Characterization of Bio-oil Produced from Vacuum Pyrolysis of Rape Straw[J].Transactions of the Chinese Society of Agricultural Machinery,2014,45(6):206-211. |
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| Authors: | Fan Yongsheng Cai Yixi Li Xiaohu Zhang Rongxian Yin Haiyun and Yu Ning |
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| Institution: | Jiangsu University;Jiangsu University;Jiangsu University;Jiangsu University;Jiangsu University;Jiangsu University |
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| Abstract: | Rape straw was chosen as the raw material to produce bio-oil crude (BC) in a vacuum pyrolysis system. BC was vacuum distilled into low boiling fraction (LBF) and high boiling fraction (HBF). Homogeneous aging fraction (HAF) and thick deposited fraction (TDF) were obtained after sealed storage of BC for 90 d. BC was preliminarily analyzed using gas chromatography/mass spectrometry (GC-MS). Chemical structure of samples was investigated using Fourier transform infrared spectrometry (FT-IR). Average molecular weight and distribution of all samples was studied using gel permeation chromatography (GPC). The results showed that BC contained many substances, including water, alkanes, phenols, alcohols, ketones, aldehydes, carboxylic acids, esters, aliphatic and aromatic compound, etc. Frequency shifting and variation of light transmittance from FT-IR analysis showed that the violent movement of electron on different functional groups intensified the interaction of molecular in bio oil. BC and LBF were close to monodisperse system, and HBF, HAF, and TDF were polydisperse system, whose dispersity parameters were 15.85, 7.91 and 20.86 respectively. It was necessary for BC upgrading to improve its stability. |
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