减二线油制备环保型橡胶填充油的实验研究

Study on preparation of environmental-friendly rubber filling oil by using the second side-steam vacuum distillates

以滨化减二线油为原料,采用二次溶剂抽提工艺和催化加氢-溶剂抽提联合工艺制备环保型橡胶填充油。结果表明,二次溶剂抽提工艺在抽提温度50℃,剂油比1.5∶1时,可得到PCA为2.84%,C A值为10.76%,收率61.83%的环保型橡胶填充油。催化加氢-溶剂抽提联合工艺在催化加氢反应温度320℃,氢初压7 MPa,加氢时间2 h,抽提温度70℃,剂油比1.5∶1条件下,可得到抽余油PCA为2.03%,C A值为15.21%,收率75.20%的环保型橡胶填充油。催化加氢-溶剂抽提联合工艺的产品性质更优,收率更高。

The environmental-friendly rubber filling oil was prepared by using the second side-steam vacuum distillates from Binzhou Chemical Company base crude oil as the feedstock and furfural as solvent through two different methods.The result show that the environmental-friendly rubber filling oil with the PCA content of 2.84％,CA value of 10.76％ and the yield of 61.83％ was obtained in the second solvent extraction under the reaction conditions that furfural extraction temperature was 50 ℃,the weight ratio of solvent to oil was 1.5∶ 1.The environmental-friendly rubber filling oil with the PCA content of 2.03％,CA value of 15.21％ and the yield of 75.20％ was obtained by the combined process of catalytic hydrogenation-solvent extraction under the reaction conditions that hydrogenation temperature was 320 ℃,initial hydrogenation pressure was 7 MPa for 2 h,furfural extraction temperature was 70 ℃,the weight ratio of solvent to oil was 1.5∶ 1.Compare with extraction and catalytic hydrogenation-extraction,the latter would get a higher yield and more optimal properties.