| 摘要: |
| 采用超临界CO2为萃取剂,以萃取后油基钻屑的残油率为主要评价指标,研究了不同萃取条件(萃取压力、萃取温度、萃取时间)对废弃油基钻屑萃取的影响。实验结果表明,当萃取温度为50 ℃、萃取时间为100 min、萃取压力为25 MPa时,残油率为0.748%,此萃取工艺展现出了良好的处理效果。 |
| 关键词: 超临界CO2 油基钻屑 萃取 残油率 |
| DOI：10.3969/j.issn.1007-3426.2016.03.019 |
| 分类号:TE992.3 |
| 基金项目:国家自然科学基金“废弃油基钻井液旋流分离机理及脱出油循环利用研究”(51104126)。 |
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| Experimental study on waste oil-based drilling cuttings by utilizing supercritical carbon dioxide extraction technology |
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Li Zhao, Du Guoyong, Zhu Mengxiang, Yang Lu, Tu Wenwen
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(School of Chemistry and Chemical Engineering of Southwest Petroleum University,Chengdu 610500, China)
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| Abstract: |
| In this paper, supercritical carbon dioxide was used as an extracting agent to recovery the oil from the oil-based drilling cuttings. By setting the residual oil contents as the main evaluation index, the effect of several factors including extracting pressure, extracting temperature, and extracting time were investigated. The results showed that the residual oil content was 0.748% when the extracting pressure was 25 MPa, the extracting temperature was 50 ℃, and the extracting time was 100 min. This extraction technology shows a favorable treatment efficiency. |
| Key words: supercritical carbon dioxide oil-based drilling cutting extraction residual oil conten |
