非加氢工艺脱除环烷基馏分油中的多环芳烃化合物
发布时间：2018-08-29 14:48
【摘要】：采用溶剂萃取-酸碱精制的非加氢联合工艺脱除环烷基馏分油中的多环芳烃化合物(PCA)。对萃取剂的选择、分离操作条件和酸碱溶液用量对脱除效果的影响进行了考察;利用FTIR对油品结构进行表征;对实验过程产生的酸渣、碱渣和废液的利用及处理进行了讨论。实验结果表明,最佳条件为以N-甲基吡咯烷酮为溶剂,在剂油质量比为2,萃取温度为45℃的条件下,对原料油进行萃取,PCA含量由12.72%(w)降至3.76%(w);再用2%(w)的浓H_2SO_4溶液和2%(w)的NaOH溶液精制抽余油,此时精制油收率为41.71%,PCA含量为0.79%(w),总脱除率高达93.79%。
[Abstract]:Removal of polycyclic aromatic compounds (PCA). From naphthenic distillate by solvent extraction and acid-base refining The effects of extractant selection, separation operation conditions and the amount of acid-base solution on the removal efficiency were investigated. The oil structure was characterized by FTIR, and the utilization and treatment of acid slag, alkali residue and waste liquid produced during the experiment were discussed. The experimental results show that the optimum conditions are as follows: N- methylpyrrolidone as solvent, the ratio of solvent to oil is 2, and the extraction temperature is 45 鈩，
本文编号：2211537
[Abstract]:Removal of polycyclic aromatic compounds (PCA). From naphthenic distillate by solvent extraction and acid-base refining The effects of extractant selection, separation operation conditions and the amount of acid-base solution on the removal efficiency were investigated. The oil structure was characterized by FTIR, and the utilization and treatment of acid slag, alkali residue and waste liquid produced during the experiment were discussed. The experimental results show that the optimum conditions are as follows: N- methylpyrrolidone as solvent, the ratio of solvent to oil is 2, and the extraction temperature is 45 鈩，
本文编号：2211537
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