【摘要】 以某炼油厂减三线脱蜡油为原料进行了加助剂糠醛精制中试实验研究。结果表明:添加糠醛助剂能有效地脱除脱蜡油中的碱性氮化物,精制油碱氮含量为10.47μg/g,其脱碱氮率高达97.6%;精制油旋转氧弹时间为211min,黏度指数为112。确定减三线脱蜡油糠醛精制工艺中试的最佳操作条件为:抽提塔塔顶温度115℃,塔底温度67℃,剂油体积比2.0,助剂加入量8g/kg。更多还原

【Abstract】 Using a third vacuum side dewaxed oil as feed,the pilot plant test of furfural extraction denitrogenation with assistant(metallic salt)added was introduced in this paper.Results showed that adding assistant in the furfural denitrogenation process could enhance the removal of basic nitrogen compounds in dewaxed oil significantly;the removal rate reached 97.6%.Under the optimum operation conditions of an extractor top temperature of 115℃,an extractor bottom temperature of 67℃,a solvent/oil volume ratio of 2.0 and an assistant adding amount of 8 g/kg(oil),the treated oil had a basic nitrogen content of 10.47μg/g,its viscous index was 112 and its rotating bomb oxidation test time reached 211 min.更多还原