【摘要】 采用糠醛加助剂对克拉玛依减四线抽出油进一步抽提,以生产多环芳烃含量符合要求的橡胶填充油。运用正交实验方法考察了剂油比、抽提温度及助剂用量对精制油收率和多环芳烃含量的影响,并用假三段模拟实验进行验证。结果表明,最优操作条件为:剂油比1.82∶1,助剂用量10%,抽提塔的顶部和底部温度分别是65℃和45℃,在此条件下,精制油收率接近50%,多环芳烃含量2.9%,CA值为18.4%,所生产的精制油可以作为环保芳烃橡胶填充油。更多还原

【Abstract】 Extract oil of Karamay vacuum fourth oil was further extracted with furfural and assistant to produce rubber extender oil which can meet PCA( polycyclic aromatic) requirement. The effects of solvent /oil ratio,extraction temperature and assistant amount on yield and PCA content of refined oil were investigated by using orthogonal experimental method,and were verified by carrying out hypothetical three-stage simulation experiment. The results showed that the optimum operating conditions were as follows: the mass ratio of furfural to oil was 1. 82 ∶ 1,assistant amount was 10%,top and bottom temperatures of extraction column were respectively 65 ℃ and 45 ℃. Under this condition,the yield of refined oil was nearly 50%,PCA content was 2. 9% and CA( the mass fraction of aromatic carbon) was 18. 4%,which showed the refined oil can be used as environmental-friendly aromatic rubber extender oil.更多还原