超高压处理提高生物油品质研究

何荣海; 叶晓飞; 马海乐

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Property improvement of bio-oil by ultra-high pressure processing

首发时间：2012-12-05

HE Ronghai ¹
HE Ronghai, (1971-), male, Associate Prof., biomass energy research.
YE Xiaofei ² MA Haile ³

1、School of Food and Biological Engineering, Jiangsu University, JiangSu ZhenJiang 212013
2、Department of Biosystems Engineering and Soil Science, The University of Tennessee, Knoxville, 37996, USA
3、School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013

Abstract：Bio-oils produced from fast pyrolysis need to be upgraded before application as fuel due to their poor physicochemical properties. In this submission, we probed the potential of continuous ultra-high pressure processing (high pressure homogenization (HPH)) technique in improving physicochemical properties of switchgrass bio-oil. The homogenization pressures for different bio-oil samples were 100, 150, 200, 250, and 300MPa, respectively. The results showed that viscosity of switchgrass bio-oil decreased remarkably to 70% of the original value after homogenization treatment at pressure of 100MPa, and it didn't significantly change when homogenization pressure continued to increase; solid content significantly decreased, and water content, heating value, density, pH value, and ash content of switchgrass bio-oil did not change after HPH. The average molecular weight of switchgrass bio-oil was proved to appreciably decrease after homogenization. And the oil's chemical composition changed. HPH processing remarkably improved switchgrass bio-oil stability. Economic calculation demonstrated the operation cost was only 1.07 US cents/L for bio-oil HPH processing at 100MPa.

keywords： biomass energy Bio-oil Upgrading High-pressure homogenization

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超高压处理提高生物油品质研究

何荣海 ¹
HE Ronghai, (1971-), male, Associate Prof., biomass energy research.
叶晓飞 ² 马海乐 ³

1、江苏大学食品与生物工程学院，江苏镇江 212013
2、美国田纳西大学生物系统工程与土壤科学系，诺克斯维尔，37996
3、江苏大学食品与生物工程学院，镇江 212013

摘要：快速热解油由于其不良的理化性质在作为燃料应用前需要进行提质。本文探讨了连续超高压技术在提高柳枝稷生物油理化性质方面的应用。分别采用100、150、200、250和300 MPa均质压力对同生物油样品进行了处理。结果表明，100 MPa压力均匀处理后，柳枝稷生物油粘度显著下降到原始值70%左右，均质压力继续增加，粘度没有进一步改变；生物油固体含量明显降低，水含量、热值、密度、酸碱值和灰分没有明显改变。生物油平均分子均质后明显降低，化学组成和含量也发生了发生变化；超高压均质处理显著提高柳枝稷生物油的稳定性。经济计算表明，采用100Mpa超高压均质处理生物油，成本约为1.07美分/升油。

关键词：生物质能源生物油提质超高压均质

基金：

1. Doctoral Fund of Ministry of Education of China （20093227120012）

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HE Ronghai,YE Xiaofei,MA Haile. Property improvement of bio-oil by ultra-high pressure processing[EB/OL]. Beijing:Sciencepaper Online[2012-12-05]. https://www.paper.edu.cn/releasepaper/content/201212-47.

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论文编号	201212-47
论文题目	超高压处理提高生物油品质研究
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