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利用中石油兰州石化公司N-甲基吡咯烷酮溶剂精制工艺技术,以长庆混合原油的减压四线馏分油为原料,生产芳香烃性橡胶填充油。结果表明通过优化原油结构,在剂油比(v/v)1.7:1,萃取塔塔顶温度97℃、塔底温度93℃,湿溶剂量1.5～2.0m3/h的操作条件下,精制后的抽出油芳香烃质量分数提高至88%,运动粘度(100℃)达30～40mm2·s-1,其芳香烃型橡胶填充油质量达到一等品质量指标。
By using N-methylpyrrolidone solvent refining technology of PetroChina Lanzhou Petrochemical Company, the four-stage vacuum distillate of Changqing mixed crude oil was used as raw material to produce aromatic hydrocarbon rubber filling oil. The results show that the optimized crude oil structure can be obtained by optimizing the crude oil structure under the operating conditions of the ratio of oil to solvent (v / v) 1.7: 1, the temperature of the top of the extraction column 97 ℃, the temperature of the bottom of the column 93 ℃ and the amount of wet solvent 1.5 ~ 2.0m3 / h Of the oil extracted aromatic hydrocarbons mass fraction increased to 88%, kinematic viscosity (100 ℃) of 30 ~ 40mm2 · s-1, the quality of the aromatic hydrocarbon rubber filled oil to achieve first-class quality indicators.