介绍了中国石化抚顺石油化工研究院开发的废润滑油高压加氢处理与补充精制两段加氢组合工艺再生润滑油基础油技术.以废润滑油小于510 ℃馏分油为原料,在小型加氢反应装置上进行试验,在最大限度保留废润滑油中大部分优质基础油组分的同时脱除杂质和芳烃饱和.结果表明:在反应压力为(基准+5)MPa、加氢处理/补充精制反应温度为(基准+20)℃/(基准+10)℃、加氢处理/补充精制体积空速为基准/(基准+1.0)h-1、氢油体积比为800的条件下,废润滑油可再生为润滑油基础油,生成油色度达到+30号,分馏得到大于400 ℃馏分的倾点为-18 ℃,100 ℃黏度为6.856 mm2/s,黏度指数为100,可生产HVI Ⅱ6号基础油产品;320~400 ℃馏分的倾点为-23 ℃,100 ℃黏度为3.218 mm2/s,可作为HVI Ⅱ3号基础油产品或3号工业白油;280~320 ℃馏分的40 ℃黏度为6.725 mm2/s,倾点为-45 ℃,可作为40号通用变压器油;大于320 ℃基础油的收率在80%以上,总液体收率大于98%.%The combined process consistent of high pressure hydrotreating and hydrofinishing,developed by SINOPEC Fushun Research Institute of Petroleum and Petrochemical,was adopted for the regeneration of waste lubricant oil in a bench scale hydrotreating unit.The oil fraction below 510 ℃ obtained by distillation of waste lubricant was used as hydrotreating feed.The test goal is to retain the majority of high-quality base oil component and simultaneously remove the impurities and saturate the aromatics in the feed.The test results show that at the reaction conditions of pressure of (base+5) MPa,hydrotreating/hydrofinishing reaction temperature of (base+20) ℃/(base+10) ℃,respectively and liquid volume space velocity of base/(base+1.0) h-1,respectively,and hydrogen/oil volume ratio of 800,the color of produced oil reaches +30,the > 400 ℃fraction produced has a pour point of-18 ℃,viscosity (100 ℃) of 6.856 mm2/s and VI of 100,which can meet the standard requirements of SINOPEC HVI Ⅱ6# base oil.The fraction of 320-400 ℃ has a pour point of-23 ℃ with viscosity (100 ℃)of 3.218 mm2/s and VI of 100,which meets the standard requirements of SINOPEC HVI Ⅱ3# base oil or 3# industrial white oil product.The fraction of 280-320 ℃ with pour point of-45 ℃,viscosity (40 ℃) of 6.725 mm2/s meets the standard requirements of PetroChina 40# universal transformer oil.The liquid yield of >320 ℃ fraction is more than 80% and the total liquid yield is more than 98%.
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