| CaO表面更新对微拟球藻催化热解制备生物油的影响 |
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| 引用本文： | 杨林,张秀丽,杨雅,王许云,徐秀峰,郭庆杰.CaO表面更新对微拟球藻催化热解制备生物油的影响[J].化工学报,2014,65(11):4340-4346. |
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| 作者姓名： | 杨林 张秀丽 杨雅 王许云 徐秀峰 郭庆杰 |
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| 作者单位： | 1. 青岛科技大学化工学院, 清洁化工过程山东省高校重点实验室, 山东 青岛 266042;
2. 烟台大学应用催化研究所, 山东 烟台 264005 |
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| 基金项目： | 海洋可再生能源专项资金项目(GHME2001SW02)。@@@@ supported by the Special Fund of Marine Renewable Energy |
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| 摘 要： | 分别以水合化法和热缺陷法对CaO进行表面更新,用N2物理吸附(BET)、X射线衍射(XRD)、扫描电镜(SEM)和CO2吸附技术对表面更新后的CaO进行了结构表征,并利用制备的CaO在管式炉内对微拟球藻进行了催化热解研究.结果表明:两种更新方法均能明显提高CaO的比表面积、介孔数目及孔体积.CaO的表面更新处理没有改变基本的晶相结构,仍为立方晶型.两种更新方法均能显著提高CaO的催化活性,且改善了产物油品的性能.相比较而言,水合CaO的催化脱氧性能较高,催化热解得到的生物油产率为28.65%、含氧量为4.67%、热值高达38.600 kJ·g-1、运动黏度低(8.011 mm2·s-1)、含水率低(2.49%),且催化热解后的生物油以C12～C17饱和直链烷烃为主,适合进一步精制为生物柴油.
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| 关 键 词： | CaO 水合化 热缺陷 微拟球藻 催化热解 生物油 |
| 收稿时间： | 2014-04-10 |
| 修稿时间： | 2014-06-01 |
Production of bio-oil by catalytic pyrolysis ofNannochloropsissp. over renewed suface CaO catalysts |
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| YANG Lin,ZHANG Xiuli,YANG Ya,WANG Xuyun,XU Xiufeng,GUO Qingjie.Production of bio-oil by catalytic pyrolysis ofNannochloropsissp. over renewed suface CaO catalysts[J].Journal of Chemical Industry and Engineering(China),2014,65(11):4340-4346. |
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| Authors: | YANG Lin ZHANG Xiuli YANG Ya WANG Xuyun XU Xiufeng GUO Qingjie |
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| Affiliation: | 1. Key Laboratory of Clean Chemical Processing of Shandong Province, College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao 266042, Shandong, China;
2. Institute of Applied Catalysis, Yantai University, Yantai 264005, Shandong, China |
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| Abstract: | The surface of calcium oxide (CaO) was renewed by using hydration-calcination and thermal calcinations methods, respectively. The structure and property of renewed CaO was characterized by BET, XRD, SEM and CO2-TPD techniques. Meanwhile, the catalytic pyrolysis of Nannochloropsis sp. was investigated in a fixed-bed reactor. It is shown that two preparation methods for CaO obviously increase the specific surface area, meso-pore numbers, and pore volume. The renewed surface CaO catalysts were of typical face-centered structure and of higher catalyst activity, and could improve bio-oil product quantity. The yield of bio-oil produced on the hydration-calcination CaO was 28.65%, which was of higher calorific value (38.600 kJ·g-1), lower kinetic viscosity (8.011 mm2·s-1), and lower moisture content (2.49%). The main ingredients of bio-oil from catalytic pyrolysis of Nannochloropsis sp. were C12-C17 saturated normal alkanes, which are more suitable for being upgraded to bio-diesel. |
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| Keywords: | CaO hydration thermal defect Nannochloropsissp catalytic pyrolysis bio-oil |
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