热化学清洗-逆流提取联合处理高含油含聚油泥工艺试验

陈红硕; 刘佳驹; 付正辉; 郭怀成

doi:10.12153/j.issn.1674-991X.2019.01.120

热化学清洗-逆流提取联合处理高含油含聚油泥工艺试验

doi: 10.12153/j.issn.1674-991X.2019.01.120

北京大学环境科学与工程学院,北京 100871

详细信息

作者简介:
陈红硕(1988—),男,工程师,博士研究生,主要从事油田固废管理与处置研究, chenhongshuo2011@163.com

通讯作者:
郭怀成 E-mail: ghc1111@pku.edu.cn

中图分类号: X741
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出版历程
- 收稿日期: 2018-11-04
- 刊出日期: 2019-05-20

Experimental study on treatment of high-oil sludge containing polymer by thermochemical cleaning and countercurrent extraction

College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China

More Information

Corresponding author: Huaicheng GUO E-mail: ghc1111@pku.edu.cn

摘要

摘要: 针对高含油含聚油泥资源化利用与无害化处理的技术需求,开发了以热化学清洗-逆流提取为核心的处理工艺,对国内某海洋平台陆上终端产生的高含油含聚油泥的处理进行了试验。热化学清洗以国内某品牌洗衣粉为清洗剂,经过系列优化试验,确定最佳清洗条件:清洗温度为65 ℃,液固比为3:1,清洗时间为25 min,搅拌频率为450 r/min,清洗剂添加比例为0.5%。经热化学清洗,油泥的干基含油率由清洗前的62.0%降至清洗后的25.4%,干基油泥去除率为59.0%,且处理后的油泥在后续的逆流提取过程中呈现较好的分散性。热化学清洗并经逆流提取后固体出料的干基含油率为1.7%,满足SY/T 7301—2016《石油天然气开采含油污泥资源化综合利用及污染控制技术要求》中关于油泥的处理处置要求,提炼出的矿物油可交与炼厂进行回收利用。
- 高含油含聚油泥 /
- 热化学清洗 /
- 逆流提取 /
- 清洗剂 /
- 萃取剂
Abstract: In order to meet the demand of resource utilization and harmless treatment of high-oil sludge containing polymer, a comprehensive treatment process with “thermochemical cleaning and countercurrent extraction” as the core was developed. The removal of crude oil from high-oil sludge containing polymer of one marine drilling platform by thermochemical cleaning and countercurrent extraction was studied experimentally. A domestic brand of washing powder was used as cleaning agent during the thermochemical cleaning. Results showed that the optimum conditions for thermochemical cleaning was temperature of 65 ℃, the liquid-to-solid mass ratio of 3:1, the cleaning time of 25 min, and the stirring rate of 450 r/min. After thermochemical treatment, the dry base oil content of oil sludge decreased from 62.0% to 25.4%, and the removal rate could reach 59.0%; moreover, the oil sludge after treatment showed good dispersion in the subsequent countercurrent extraction process. The dry base oil content of solid after “thermochemical cleaning and countercurrent extraction” was 1.7%, which perfectly met the control standards of Technical Requirements for Comprehensive Utilization and Pollution Control of Oil-bearing Sludge in Oil and Natural Gas Exploitation (SY/T 7301-2016), and the mineral oil could be delivered to the refinery for recycling.
- high-oil sludge containing polymer /
- thermochemical cleaning /
- countercurrent extraction /
- washing powder /
- extracting agent

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