高选择性润滑油异构脱蜡催化剂RIW-30的研究与开发

RESEARCH AND DEVELOPMENT OF HIGH SELECTIVITY CATALYST RIW-30 FOR LUBE HYDROISOMERIZATION DEWAXING

在深入化反应机理的基础上,通过分析现有催化剂的特点,进行文献调研和试验研究,成功合成了具有特定结构和硅铝比的BCM-168分子筛。通过控制BCM-168分子筛的关键物化性质指标并优化催化剂配方,开发了具有高异构选择性的润滑油异构脱蜡催化剂RIW-30。分子筛工业放大和催化剂制备重复性试验结果表明,BCM-168分子筛和RIW-30催化剂制备技术具有较好的重复性。以RIW-30催化剂加工加氢裂化尾油、减四线加氢处理生成油和蜡下油等原料时,主产品收率高、黏度指数损失低,RIW-30有很好的活性、异构选择性和原料适应性。与现有工业催化剂RIW-2相比,采用RIW-30催化剂加工加氢裂化尾油时,黏度指数损失减少4,主产品收率提高4~5百分点。工业应用结果表明,采用RIW-30催化剂可以在较温和的反应条件下生产HVIⅢ类基础油,润滑油收率高,黏度指数损失小,催化剂整体性能优于RIW-2催化剂。

Based on the mechanism of alkane hydroisomerization,by analyzing the properties of hydroisomerization dewaxing catalyst,a molecular sieve named as BCM-168 with special structure and suitable ratio of silica to alumina was synthesized.By controlling the key physical and chemical properties of BCM-168 and optimizing the components of catalyst,catalyst RIW-30 with high isomerization selectivity for lube oil isomerization dewaxing was developed.The results of industrial production and preparation repeatability test showed that the molecular sieve and the catalyst preparation technology had good repeatability.When catalyst RIW-30 was used to process hydrocracking unconverted oil,hydrotreated vacuum gas oil and slack wax,the yield of main products was high and the loss of viscosity index was low.It has good activity,hydroisomerization selectivity and raw material adaptability.Compared with catalyst RIW-2,when catalyst RIW-30 was used to process hydrocracking tail oil,the viscosity index loss of the product decreased by 4 and the yield of main product increased by 4-5 percentage points.The results of industrial applications indicated that HVI II base oil could be produced by using catalyst RIW-30 under mild reaction conditions,with high yield of base oil and less loss of viscosity index,which meant that the overall performance of the catalyst RIW-30 was better than that of catalyst RIW-2.