摘要
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。
Used aviation lubricating oil(UO) as the starting feedstock for the preparation of regenerated base oil by distillation-hydrofining-adsorption.The properties of UO hydrorefined lubricating oil(HO) were characterized using GC-MS,~1H NMR and FTIR.It was found that after the UO was hydrorefined, the viscosity index of HO was 122,and the saturated hydrocarbon content was mass fractions about 92.26%,the colour code was 2.5,the color code of the regenerated base oil obtained only by the hydrotreating process alone not reached the standard.Adding 10% clay and stirring at 140 ℃ for 1.5 h, the viscosity index of regenerated base oil was 125,and the saturated hydrocarbon content was mass fractions about 95%,the colour code was 0.3,the quality of the regenerated base oil reached the standard of the base oil VHVI5.The coloring substances in HO are mainly ketones and aldehydes.
作者
施俊合
武怡
刘介平
徐贤
王飞利
李冬
SHI Jun-he;WU Yi;LIU Jie-ping;XU Xian;WANG Fei-li;LI Dong(School of Chemical Engineering,Northwest University,Xi’an 710069,China;Shaanxi Provincial Resource Chemical Application Technology Engineering Research Center,Xi’an 710069,China;Department of Basic Course,Engineering University of Chinese Armed Police Force,Xi’an 710086,China;Ecological Environment Monitoring and Emergency Service Center of Longmatan District,Luzhou 646000,China)
出处
《应用化工》
CAS
CSCD
北大核心
2023年第1期8-12,16,共6页
Applied Chemical Industry
基金
国家自然科学基金(21978237)
陕西省自然科学基础研究计划(2021JLM-19)
陕西省创新能力支撑计划资助项目(2020TD-028)
陕煤-秦岭基础科学研究行动计划(SMY.TY20220130)。
关键词
废航空润滑油
蒸馏-加氢精制
黏度指数
色度
吸附精制
再生工艺
used aviation lubricating oil
distillation-hydrofining
viscosity index
colour code
exquisite adsorption
regeneration process
