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介绍了通过改变加氢裂化原料、降低加氢裂化转化率及采用二次催化脱蜡工艺研制HVI50 0加氢裂化基础油的过程
The process of developing HVI50 0 hydrocracking base oil by changing hydrocracking feedstock, reducing hydrocracking conversion rate and adopting secondary catalytic dewaxing process