| 亚/超临界乙醇-水体系中杜氏盐藻直接液化制备生物油 |
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| 引用本文： | 张培铃,陈宇,吴玉龙,杨明德,李春,陈镇,徐晓庆.亚/超临界乙醇-水体系中杜氏盐藻直接液化制备生物油[J].石油学报(石油加工),2012,28(5):791-797. |
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| 作者姓名： | 张培铃 陈宇 吴玉龙 杨明德 李春 陈镇 徐晓庆 |
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| 作者单位： | 1. 石河子大学 化学化工学院，新疆 石河子 832003；
2. 清华大学 核能与新能源技术研究院，北京 100084；
3. 清华大学 精细陶瓷北京市重点实验室，北京 100084；
4. 北京理工大学 生命学院， 北京 100081 |
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| 基金项目： | 国家自然科学基金（21176142），国家科技支撑计划（2011BAD14B01), 中国石油科技创新基金（2010D50060406) 和清华大学自主科研计划（20111081067）资助 |
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| 摘 要： | 在间歇式高温高压反应釜中，以乙醇-水混合溶剂为介质，研究了在亚/超临界条件下杜氏盐藻直接液化制备生物油的工艺，探索了乙醇-水介质中不同乙醇体积分数和液化温度对盐藻液化率和产油率的影响，采用FT-IR和GC-MS方法分析了生物油的主要成分。结果表明，在亚/超临界乙醇-水体系中，当乙醇的体积分数为40%、液化温度为320℃时，杜氏盐藻的液化率为98.24%，产油率高达64.68%。在亚/超临界乙醇-水体系下，杜氏盐藻中各主要生化组分都能被有效液化。以亚/超临界乙醇-水为介质直接液化杜氏盐藻制备生物油时，随着介质中乙醇体积分数的增加，所得生物油中的酸性物质含量显著减少，酯类物质含量不断增加，从而提高了生物油的品质。
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| 关 键 词： | 杜氏盐藻 亚/超临界乙醇-水 生物油 液化 GC-MS |
| 收稿时间： | 2011-09-06 |
Preparation of Bio-oil From Direct Liquefaction of Dunaliella tertiolecta in Sub- and Supercritical Ethanol-Water |
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| ZHANG Peiling,CHEN Yu,WU Yulong,YANG Mingde,LI Chun,CHEN Zhen,XU Xiaoqing.Preparation of Bio-oil From Direct Liquefaction of Dunaliella tertiolecta in Sub- and Supercritical Ethanol-Water[J].Acta Petrolei Sinica (Petroleum Processing Section),2012,28(5):791-797. |
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| Authors: | ZHANG Peiling CHEN Yu WU Yulong YANG Mingde LI Chun CHEN Zhen XU Xiaoqing |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China; 2. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China; 3. Beijing Key Lab of Fine Ceramics, Tsinghua University, Beijing 100084, China; 4. School of Life Science, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Preparation of bio-oil from Dunaliella tertiolecta by direct liquefaction method with sub- and supercritical ethanol-water mixture as medium was investigated in a batch autoclave with high temperature and high pressure. The effects of reaction conditions, such as volume fraction of ethanol in water and reaction temperature, on the liquefaction rate and oil yield were studied, and the composition of produced bio-oil was analyzed with FT-IR and GC-MS. The results showed that the optimal liquefaction rate and oil yield of Dunaliella tertiolecta was 98.24% and 64.68% respectively in sub- and supercritical ethanol-water mixture when the volume fraction of ethanol was 40% and liquefied temperature was 320℃. The main biochemical components of Dunaliella tertiolecta could be effectively liquefied in the sub- and supercritical ethanol-water system. In the process of direct liquefaction Dunaliella tertiolecta,with the increase of ethanol, the volume fraction of acid components in bio-oil was significantly decreased, and the volume fraction of ester components was increased, resulting in the quality improvement of the bio-oil. |
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| Keywords: | Dunaliella tertiolectaDunaliella tertiolecta sub- and supercritical ethanol-water bio-oil liquefaction GC-MS |
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