CAJ | 학술논문

对废机油进行预处理，除去部分水及杂质，再通过闪蒸装置进一步除水，然后通过常减压蒸馏工艺对其进行切割。在常压蒸馏段可得到低凝点、高稳定性的轻质柴油，在减压蒸馏段结合络合精制-碱洗-白土精制等工艺流程，可生产出不同种类的润滑油基础油等可利用资源，最后用各种添加剂进行调和以提升油品质量。经研究确定了补充精制的工艺条件：添加络合剂质量分数为1．5％的酸溶剂4．5％进行酸洗；在40℃的温度下，添加质量分数为40％的NaO H水溶液1％进行碱洗；在小于120℃的温度下，添加白土3％搅拌25～30 min。采用此工艺不仅可以有效地减少对环境的污染，而且可极大地提高废机油的再生利用率。
대폐궤유진행예처리，제거부분수급잡질，재통과섬증장치진일보제수，연후통과상감압증류공예대기진행절할。재상압증류단가득도저응점、고은정성적경질시유，재감압증류단결합락합정제-감세-백토정제등공예류정，가생산출불동충류적윤활유기출유등가이용자원，최후용각충첨가제진행조화이제승유품질량。경연구학정료보충정제적공예조건：첨가락합제질량분수위1．5％적산용제4．5％진행산세；재40℃적온도하，첨가질량분수위40％적NaO H수용액1％진행감세；재소우120℃적온도하，첨가백토3％교반25～30 min。채용차공예불부가이유효지감소대배경적오염，이차가겁대지제고폐궤유적재생이용솔。
The pretreatment of spent lubricating oil to remove part of the water and impurities was carried out firstly ,then the flash device are used for further removal of water ,followed by the distillation in atmospheric and vacuum distillation unit .A low-freezing-point ,high stable light diesel were produced in the atmospheric distillation zone;different kinds of lubricating base oils which are all available resources were produced by vacuum distillation segment combined with complex agent refining-alkaline cleaning-clay refining process .Additives were added finally to improve the oil quality .The additional purification process conditions were identified:the mass fraction of acid solvent 4 .5% which contains the mass fraction complexing agent 1 .5% for pickling ;1% NaOH aqueous solution with its mass fraction of 40% were added for alkaline cleaning at 40 ℃ ,then 3% clay was added and stirred for 25~30 min at the temperature less than 120 ℃ .This processing technology not only reduces the pollution effectively ,but also greatly improves the reutilization of waste oil .