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功率超声波耦合处理炼油厂含油污泥试验研究
Experimental study on power ultrasonic coupling treatment of
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- DOI:
- 作者:
- 曹键
Cao Jian
- 作者单位:
- 北京启元汇通水务科技股份有限公司，北京100088
Beijing Qiyuanhuitong Water Sci&Tech Co.，Ltd.，Beijing 100088，China
- 关键词:
- 关键词：功率超声波；炼油厂；含油污泥；空化效应；机械效应
Keywords: power ultrasonic; refinery; oil-bearing sludge; cavitation effect; mechanical effect
- 摘要:
- 摘要：随着石油炼化行业的迅速发展，含油污泥的处理成为重要的环境问题。此研究是利用
功率超声波的空化及机械等效应处理某炼油厂产生的含油污泥，将含油污泥中的原油、污水、
污泥彻底分离，以达到降本增效目的。通过对该炼油厂的试验应用，实现污泥中含油率≤5%、
含水率≤40% 及原油中含水率≤10% 基本要求，而污水中含油率过高需再处理。含油污泥处理
的关键步骤是固液相分离，而液液相分离效果却决定了耦合处理后原油及污水的品质。分析
了功率超声波对固液相分离和液液相分离的作用机理，以及液液相分离不够理想的原因，并
探讨功率超声波应用在含油污泥处理中优势与发展前景。
Abstract: With the rapid development of petroleum refining industry, the treatment of oil bearing sludge has become an important
environmental problem. This study was to use cavitation and mechanical effectsof power ultrasonic wave to treat the oil sludge
produced by an oil refinery, completely separatedthe crude oil, sewage and sludge in oil-bearing slurry to achieve the purpose of
cost reduction and efficiency increase. Through the experimental application of the refinery, the basic requirements of oil content
≤5%, water content ≤40% in sludge and water content ≤10%in crude oil were realized, however, the high oil content in sewage
required to be retreated. The key step of oil-bearing sludge treatment was solid-liquid phase separation, and the liquid-liquid
phase separation effect determined the quality of crude oil and sewage after coupling treatment. It analyzed the mechanism of power
ultrasonic on solid-liquid separation and liquid-liquid separation and the reasons for the unsatisfactory liquid-liquid separation,
and discussed the advantages and prospects of power ultrasonic application in oil-bearing sludge treatment.