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液相络合脱氮工艺在中国石油克拉玛依石化分公司润滑油白土精制装置上进行了应用,工艺改造包括:新增一套以电沉降精制罐为主的络合脱氮精制设备及加热原料油的加热器。改造后的装置运行及标定结果表明:与单纯的白土精制工艺相比,液相络合脱氮工艺能有效地脱出润滑油基础油的氮化物,特别是碱性氮化物,显著改善精制油的氧化安定性,同时降低白土用量50%,可以提高精制油收率0.8%～1.2%,并且减轻了劳动强度,降低了生产成本,大大提高了公司的整体经济效益。
The liquid phase complexation denitrification process is applied on the lubricating clay white clay refining unit of China Petroleum Karamay Petrochemical Company. The process modification includes: adding a set of complex denitrification refining equipment mainly based on the electric settling refining tank and heating raw material oil Heater. The results of the device operation and calibration show that compared with the pure clay purification process, the liquid phase complexation denitrification process can effectively remove the nitrides of the lubricating base oil, especially the basic nitrides, and significantly improve the quality of the refined oil Oxidation stability, while reducing the amount of white clay 50%, can improve the yield of refined oil 0.8% to 1.2%, and reduce labor intensity, reduce production costs and greatly improve the overall economic efficiency of the company.