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蜡膏和蜡下油是溶剂脱蜡工艺生产润滑油基础油的副产物 ,一般只用作催化裂化原料。石油化工科学研究院的中型试验结果表明 ,蜡膏和蜡下油通过加氢处理 ,在氢分压 10～ 15MPa ,反应温度 35 0～ 40 0℃及体积空速为 0 .5～ 1.0的操作条件下 ,可以研制出符合APIⅢ类标准的很高及超高粘度指数 (VHVI及UHVI)的润滑油基础油。
Wax and wax oil is a by-product of the solvent dewaxing process to produce a base oil for lube oils and is generally used as a raw material for catalytic cracking. Petrochemical Institute of the pilot test results show that the wax and wax under the oil through hydrotreating, the hydrogen partial pressure of 10 ~ 15MPa, the reaction temperature 35 0 ~ 40 0 ℃ and the space velocity of 0.5 ~ 1.0 operation Under the conditions, it can be developed to meet the API Class Ⅲ standard high and high viscosity index (VHVI and UHVI) of the lubricating base oil.