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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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废润滑油再生利用控制系统研究 总被引:1,自引:0,他引:1
介绍了一种环境友好、适合中(小)规模生产的废润滑油再生处理工艺的控制系统设计.采用S7-300PLC和KingView组态软件,通过结构化编程,实现对废润滑油再生处理工艺的控制,提高了生产效率,增加了工艺参数的可控性,同时为工作人员提供了安全保证,为废润滑油再生处理工艺的大面积推广提供了可靠的技术支持. 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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加速基础油升级换代 迎接加入WTO挑战 总被引:2,自引:0,他引:2
我国即将加入 WTO,这将为我国润滑油企业带来机遇和严峻的挑战。拥有竞争优势的国外大公司进占我国润滑油市场 ,必将加剧我国润滑油市场的竞争。我国润滑油企业不论在生产规模、生产技术水平 ,还是在产品品种档次上 ,同国外大公司相比均存在着差距 ,所以 ,必须抓紧采取相应对策和措施 ,提高我国润滑油生产企业的市场竞争力 相似文献
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祖德光 《精细与专用化学品》2000,8(16):3-5,7
当前,我国润滑油产品供大于求,而质量与国外同类产品则有较大差距。造成上述问题的根本原因是优质润滑油基础油的品种与数量不能完全满足高档润滑油产品开发的需要。因此,应提高高粘度指数(HVI)基础油的比例,并选用溶剂精制与加氢处理相结合的方法由中间基原油生产HVI基础油。 相似文献
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介绍了国内润滑油市场的供需情况,对竞争态势和产品结构特点进行了研究,分析了国内基础油供应情况,对“十一五”期间国内润滑油市场的发展情况进行了预测。 相似文献
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Antonina Kupareva Pivi Mki‐Arvela Dmitry Yu. Murzin 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2013,88(10):1780-1793
The European oil rerefining industry is comprised of 28 plants treating waste oil, which represent one‐third in volume of the total European market for lubricants. The biggest European rerefineries with capacity greater than 40 000 tons/year apply various technologies for recycling of used oils from different sources. Used oil recycling technology has undergone significant changes over the past decade. With the newly developed rerefining technologies it is possible to produce higher quality base oil compared with the traditional and old acid clay methods. Currently in Europe the following re‐refining methods are widely used: solvent extraction (N‐methyl‐2‐pyrrolidone (Germany), Interline process (United Kingdom, Spain)); combined vacuum distillation and solvent extraction (Vaxon process (Denmark, Spain); hydroprocessing (Hylube process (Germany)); combined thin film evaporation and hydrofinishing (CEP process (Finland)); combined thermal de‐asphalting and hydrofinishing (Revivoil process (Italy, Poland, and Spain)). The majority of applied technologies in Europe is appropriate for rerefining of synthetic lubricating oils, which currently are replacing the conventional mineral lube oils due to their enhanced performance characteristics. However, for the rerefining technologies applying alkaline treatment (CEP, Vaxon) and hydrofinishing step (Cyclon, Snamprogetti, Revivoil) the amount of synthetic or semi‐synthetic oils based on esters in the feedstock should be eliminated, since these oils are less stable under alkali and hydrofinishing conditions. © 2013 Society of Chemical Industry 相似文献
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对近年国内外以费托合成物(主要为费托蜡)为原料制成GTL基础油的加工技术研究进行了综述,着重介绍Chevron、Shell、ExxonMobil和中石油在GTL基础油加工技术的研究工作及应用情况。分析表明:费托合成物烷烃含量高,GTL基础油加工技术的核心是正构烷烃的加氢异构化技术,催化剂主要为改进的异构催化剂,所得GTL基础油黏度主要为中质黏度等级、黏度指数高、蒸发损失好,收率达到工业化水平。但与矿物基础油相比还存在很多不足,需依据费托合成物的特性,开发有针对性的催化剂,选择最佳的油品加工技术工艺路线,以便进一步提高基础油的性能和收率,实现费托合成物的最优经济性。同时为国内发展费托合成基础油加工技术提供参考。 相似文献
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Sumana Ghosh Gargi Das Prasanta Kumar Das 《American Institute of Chemical Engineers》2012,58(7):2020-2029
Different flow patterns for lube oil–water and for kerosene‐water downflow through a vertical glass tube have been analyzed with the help of flow visualization. Core‐annular flow is the dominant flow regime, with oil forming the core, and water is forming the wall film. When the velocities are increased, transition to slug flow and transition to dispersed flow are found. The waves found during the transition to slug flow depend on oil viscosity: axisymmetric bamboo waves are seen in kerosene‐water downflow and the waves are asymmetric in case of lube oil–water flow where they have a cork‐screw shape. Based on the experimental observations, simple mathematical models have been proposed for predicting the flow pattern transition curves. © 2011 American Institute of Chemical Engineers AIChE J, 2012 相似文献