摘要
制备不同活性金属原子比的体相催化剂,通过BET、XRD、SEM、TEM、强度测定、堆积密度测定及小型活性评价手段,考察了活性金属钨、钼、镍含量的变化对体相催化剂物化性质和活性的影响。结果表明,保持W/Mo原子比不变,随着(W+Mo)/Ni的原子比减小,孔体积、比表面积、孔径增大,超深度加氢脱硫活性增强,在精制油硫含量小于10μg/g,反应温度降低8℃。在(W+Mo)/Ni的原子比不变的条件下,W/Mo的原子比在0.28-1.85,随着原子比增大,孔体积、比表面积、超深度加氢脱硫活性没有明显变化。
Bulk catalysts with different active metal atomic ratios were prepared. The effects of changing active metal tungsten,molybdenum and nickel contents on the physicochemical properties and activity of bulk catalysts were investigated using various characterization instruments,such as BET,XRD,SEM,TEM,determination of strength,packing density and laboratory scale hydrogenation apparatus. The results show that pore volume,specific surface area,pore size and the activity of ultra-deep hydrodesulfurization were all increased with the decrease of(W+Mo)/Ni ratio,while W/Mo atomic ratio remained constant. The reaction temperature reduced by 8 ℃ when sulfur content of refined oil is less than 10 μg/g. And the pore volume,specific surface area,pore size and ultra-deep hydrodesulfurization activity did not change obviously with increase of the W/Mo atomic ratio in the range of 0.28-1.85 while the(W+Mo)/Ni atomic ratio was kept unchanged.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2018年第3期337-345,共9页
Journal of Fuel Chemistry and Technology
基金
中国石油化工集团公司项目(114083)资助~~
关键词
体相催化剂
金属含量
原子比
加氢活性
物化性质
bulk catalyst
physicochemical properties
metal content
hydrotreating activity
mole ratio
