Study on Aromatic Solvent Naphtha Refined from Furfural Extract Oil

The process condition of preparation of aromatic solvent naphtha using furfural extraction-vacuum distillation is studied and the furfural extract oil of the second line and the fourth line of distillation of Daqing refinery is used as feedstock.The influence of extracting temperature and solvent-oil ratio on both the yield of product and aromatic content is investigated.Results show that: when the solvent-oil ratio is 2.0:1, temperature is 60℃, product's yields and aromatic content of the second line of distillation reach 52.3% and 80.6% respectively; when the solvent-oil ratio is 3.0:1, temperature is 70℃, product's yields and aromatic of the fourth line of distillation reach 55.1% and 76.8% respectively.The products are analyzed and evaluated.The index of the obtained aromatic solvent naphtha could meet the requirements of trade standard JSBR-1712.