共查询到19条相似文献,搜索用时 140 毫秒
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近年来石油资源短缺和环保意识增长,废润滑油再生工艺也日益受到各国的关注。本文回顾了国内外废润滑油再生工艺的发展历程,对较典型的传统工艺如蒸馏-白土工艺、蒸馏-硫酸-白土工艺和蒸馏-加氢工艺进行了概述,并分析各类型工艺方法的优缺点。重点探讨了废润滑油再生新工艺如分子蒸馏工艺、溶剂精制工艺和膜处理工艺的优缺点和发展前景。总结国内外学者针对以上新工艺的研究,发现分子蒸馏工艺虽然对废润滑油原料的要求有些苛刻并且设备的前期投入较大,但其具有再生废润滑油效率高、品质好等优点,适合大型工业化;超临界流体与膜耦合技术继承了两种技术的优点,大幅提升了废润滑油再生速度和效果,随着机械强度大、化学稳定性好的无机膜材料和超临界流体萃取工艺的快速发展,该项技术也必将成为废润滑油再生的研究热点。 相似文献
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分别以软蜡裂解全馏分C5~C15轻烯烃、软蜡裂解窄馏分C8~C12轻烯烃、58号半精蜡裂解全馏分轻烯烃为原料,在实验室合成了润滑油基础油,比较了产品的性能,研究了不同馏分烯烃原料对润滑油基础油性能的影响. 相似文献
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以废航空润滑油(UO)为原料,采用蒸馏-加氢-吸附精制工艺制备了再生基础油。通过GC-MS、1H NMR、FTIR等分析手段对UO、加氢精制油(HO)的组分特征进行了表征。对原料和产品的色度和黏度指数进行了测定。结果表明,选取<370℃的UO馏分经过加氢精制后,HO的黏度指数为122,饱和烃质量分数为92.26%,色度为2.5,仅通过单独加氢处理工艺得到的再生基础油的色度不符合标准,采用10%的活性白土,在140℃搅拌1.5 h对HO进一步脱色,得到的再生基础油黏度指数为125,饱和烃含量为95%,色度为0.3,符合VHVI5号的再生基础油标准。加氢精制油中的着色物质主要是酮、醛类化合物。 相似文献
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《精细化工原料及中间体》2017,(11)
正采用德国MRD(多伦贝格油品精炼公司)废润滑油蒸馏--加氢精制的生产工艺,即将废润滑油加热蒸馏,分馏出润滑油馏分和残渣,然后将润滑油馏分进行加氢精制处理,年产基础油8.5万吨、年产润滑油4.4万吨。项目主体工程为再生油装置和润滑油装置,并配套建设循环水站、罐区、污水收集池、办公楼等公用工程、储运工程及辅助设施。同时依托园区现有部分公用工程和辅助设施。 相似文献
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[目的]针对我国农用精炼矿物油基础油生产空白,研究炼制工艺,实现高标准基础油国产化。[方法]利用加氢裂化和加氢异构脱蜡工艺,得到颜色浅、硫含量低、馏分窄的轻质油,然后以此为原料,利用实沸点装置试验窄馏分蒸馏切割,生产出高标准的农用矿物基础油。[结果]加氢异构轻质油通过窄馏分蒸馏切割,得到合适馏分范围的基础油,其相对正构烷烃碳数范围差为3,相对正构烷烃平均碳数为22,非磺化物含量为98.0%,符合农药用矿物基础油指标要求。[结论]加氢异构轻质油适合作为原料,可以加工生产农用矿物基础油。研制的农药矿物油基础油,填补我国农药矿物油基础油空白,实现农用矿物油基础油国产化。 相似文献
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In this study, effects of diesel-like fuel (DLF) on engine performance and exhaust emission are investigated experimentally. The DLF is produced from waste engine lubrication oil purified from dust, heavy carbon soot, metal particles, gum-type materials and other impurities. A fuel production system mainly consisting of a waste oil storage tank, filters, a reactor, oil pump, a product storage tank, thermostats and control panel is designed and manufactured. The DLF is produced by using the system and applying pyrolitic distillation method. Characteristics, performance and exhaust emissions tests of the produced DLF are carried out at the end of the production. The characteristic tests such as density, viscosity, flash point, heating value, sulfur content and distillation of the DLF sample are performed utilizing test equipments presented in motor laboratory of Mechanical Engineering Department, University of Gaziantep, Turkey. Performance and exhaust emission tests for the DLF are performed using diesel test engine. It is observed from the test results that about 60 cc out of each 100 cc of the waste oil are converted into the DLF. Characteristics and distillation temperatures of the DLF are close to those values of a typical diesel fuel sample. It is observed that the produced DLF can be used in diesel engines without any problem in terms of engine performance. The DLF increases torque, brake mean effective pressure, brake thermal efficiency and decreases brake specific fuel consumption of the engine for full power of operation. 相似文献
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利用上/下位机RS485总线通信,设计废油再生分子蒸馏设备实时在线监控系统。实现了以现场优先,在生产现场和中控室的两级控制。 相似文献
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Increase in energy demand, stringent emission norms and depletion of oil resources led the researchers to find alternative fuels for internal combustion engines. Many alternate fuels like Alcohols, Biodiesel, LPG, CNG etc have been already commercialized in the transport sector. In this context, pyrolysis of solid waste is currently receiving renewed interest. The disposal of waste tyres can be simplified to some extent by pyrolysis. The properties of the Tyre pyrolysis oil (TPO) derived from waste automobile tyres were analyzed and compared with the petroleum products and found that it can also be used as a fuel for compression ignition engine. However, the crude TPO has a higher viscosity and sulphur content. The crude TPO was desulphurised and then distilled through vacuum distillation. In the present work, DTPO-diesel blends were used as an alternate fuel in a diesel engine without any engine modification. This paper presents the studies on the performance, emission and combustion characteristics of a single cylinder four stroke air cooled DI diesel engine running with the Distilled Tyre pyrolysis oil (DTPO). 相似文献
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利用分子蒸馏技术再生废旧轧制油 总被引:1,自引:1,他引:0
重点介绍化工分子蒸馏技术原理,它是利用不同分子自由程差别来实现分离,是远离沸点的分离,区别于传统的化工蒸馏采用不同物质的沸点差实现分离;它是在传统蒸馏和真空技术发展基础上的一个创新技术,废旧轧制油是铝带箔生产企业在使用中被润滑油、液压油、机械杂质、水污染更换下来的废油。文章重点介绍利用分子蒸馏技术在再生废旧轧制油方面的成功运用。 相似文献
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A comparative study on the performance, emission and combustion studies of a DI diesel engine using distilled tyre pyrolysis oil–diesel blends 总被引:1,自引:0,他引:1
Alternate fuels like ethanol, biodiesel, LPG, CNG, etc., have been already commercialised in the transport sector. In this context, pyrolysis of solid waste is currently receiving renewed interest. The disposal of waste tyres can be simplified to a certain extent by pyrolysis. In the present work, the crude tyre pyrolyisis oil (TPO) was desulphurised and then distilled through vacuum distillation. Also, two distilled tyre pyrolysis oil (DTPO)–diesel fuel (DF) blends at lower and higher concentrations were used as fuels in a four stroke single cylinder air cooled diesel engine without any engine modification. The results were compared with diesel fuel (DF) operation. Results indicate that the engine can run with 90% DTPO and 10% diesel fuel. 相似文献