研究生学术报告预告登记（开题、中期、答辩）

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       为加强研究生学术交流活动，推进学术创新，特开通“研究生学术报告预告区”。我校研究生和教师可以在预告区及时发布和了解有关研究生学术报告的信息，届时参加。也可就某学术报告展开专题讨论与交流。

报告人: 杜永亮
学号: 1009207041
学院: 化工学院
报告类型: 其他学术报告
日期: 2011年08月19日
时间: 07:03
地点: 填料楼二层会议室
导师: 李鑫钢
题目: Solvent extraction for heavy crude oil removal from contaminated soils
内容提要: A new strategy of heavy crude oil removal from contaminated soils was studied. The hexane-acetone solvent mixture was used to investigate the ability of solvent extraction technique for cleaning up soils under various extraction conditions. The mixtures of hexane and acetone (25 vol%) were demonstrated to be the most effective in removing petroleum hydrocarbons from contaminated soils and approx 90% of saturates, naphthene aromatics, polar aromatics, and 60% of nC7-asphaltenes were removed. Kinetic experiments demonstrated that the equilibrium was reached in 5 min and the majority of the oil pollutants were removed within 0.5 min. The effect of the ratio between solvent and soil on the extraction efficiency was also studied and results showed that the efficiency would increase following the higher solvent soil ratio. Then the multistage continuous extraction was considered to enhance the removal efficiency of oil pollutants. Three stages crosscurrent and countercurrent solvent extraction with the solvent soil ratio 6:1 removed 97% oil contaminants from soil.
图片:
登记人: 杜永亮
登记时间: 2012年05月2日 星期三 15:04
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