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该实验所设计的废润滑油再生方案是以废油预处理—糠醛精制—减压蒸馏为主要流程进行的,利用溶剂溶解度的不同进行萃取从而达到对废润滑油的再生,实验是分别在不同剂油比;不同温度下对废润滑油进行糠醛精制。实验结果为当剂油比为2∶1;精制温度为85℃时为糠醛精制的最佳工艺条件,回收后的油品经添加适当的添加剂调和后可循环使用。 相似文献
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为探索粉煤灰吸附在废润滑油再生中的高附加值利用,单因素实验探讨影响粉煤灰吸附再生废油的主要因素,正交实验得到相对优化的粉煤灰吸附工艺条件。结果表明,该优化工艺条件为:搅拌时间60 min,吸附温度90℃,粉煤灰添加量12%,搅拌速率850 r/min。并与活性白土吸附处理废油进行对比实验,实验证明粉煤灰再生处理废油的效率与活性白土相近,可作为吸附剂用于废油的吸附再生。 相似文献
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摘要介绍了东风4B型机车发生机油乳化后不及时发现的严重后果.阐述了造成机油乳化的途径、判断机油乳化的方法及处理的具体步骤。 相似文献
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活塞式压缩机润滑油的选择 总被引:1,自引:0,他引:1
魏龙 《化学工业与工程技术》1998,19(4):23-25
介绍了活塞式压缩机润滑方式对润滑油的要求和常用的活塞式压缩机润滑油的分类情况,着重讨论了活塞式压缩机内部润滑油的负荷等级和粘度的选择,及不同介质压缩机润滑油品种的选择方法。 相似文献
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Impact of lubricating oil on particulates formed during combustion of diesel fuel—a shock tube study
The advent of more stringent standards to reduce particulate emissions has increased the need to control the contribution that consumption of lubricating oil in engines makes toward particle emissions. Although many studies have been done in this area, the main mechanism by which lubricating oil contributes to particle formation is not well understood. In this study, the impact of lubricating oil on particle emissions from diesel fuel combustion was investigated. Combustion of D-2 diesel fuel with two concentrations of Pennzoil 10W40 motor oil (0.5 and 2 wt%) was studied over a temperature range of 1200-2300 °C at pressures of 5, 14 and 24 atm. All experiments were conducted in a modified single pulse reflected shock tube. The fuel and lubricating oil mixtures were injected using a high pressure fuel injector. The addition of lubricating oil led to higher particulate yields at higher combustion pressures. The increase was more evident with higher lubricating oil concentrations. However, at lower pressures, neither concentrations of lubricating oil had any impact on particulate yield. The results agree with previous studies where an increase in particulate yield was observed with an increase in lubricating oil consumption and pressure. The results observed confirm the hypothesis that lubricating oil present in the combustion chamber during the combustion process could contribute to particle emissions. 相似文献
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我国废润滑油再生行业的现状及发展前景 总被引:3,自引:0,他引:3
调查了废润滑油再生处理的主要方式和环境因素,对国内废润滑油再生行业的政策法规状况进行了总结,对国内废润滑油再生行业的发展前景进行了展望,同时为我国废润滑油再生行业的正规化、专业化和规模化发展之路提出了建议。 相似文献
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为了得到加热条件下润滑油对超临界二氧化碳换热特性的影响,利用Fluent软件建立CO2/润滑油两相混合物流动传热模型,通过改变润滑油浓度、质量通量、热通量和压力进行换热特性分析。结果表明,润滑油的存在显著削弱超临界二氧化碳的对流换热过程,随着润滑油浓度的增加,对流换热进一步恶化。当油浓度小于1%时,不影响对流传热系数的变化趋势,当油浓度超过3%,温度高于二氧化碳拟临界温度时,传热恶化程度降低。热通量的增加使得对流换热进一步恶化,提高质量通量能有效改善对流换热恶化现象。二氧化碳在润滑油中的溶解度直接影响对流换热过程,提高运行压力可增加二氧化碳在润滑油中的溶解度以降低高润滑油浓度下的传热恶化程度。 相似文献