磺化酞菁金属的聚集及对催化氧化硫醇性能影响

磺化酞菁金属主要用作液化气脱硫醇过程碱液氧化再生催化剂。为研究磺化酞菁金属易于失活的影响因素,对比探讨了5种磺化酞菁金属(Fe、Co、Ni、Cu、Zn )在相同溶剂以及不同溶剂中的聚集作用,并研究了聚集对催化氧化硫醇活性的影响。结果表明,磺化酞菁金属聚集受溶剂影响较大,溶剂极性越强,聚集越严重;磺化酞菁金属溶液放置时间越长,磺化酞菁金属聚集体粒径越大;金属种类不同,对磺化酞菁金属聚集也有影响。聚集导致CoSPc、CuSPc催化氧化硫醇活性显著降低20%左右。

Aggreation Behavior and Catalytic Sweetening Performance of Sulfonated Metallophthalocyanines

Sulfonated metallophthalocyanines are mainly used as oxidation regenerated catalyst in liquefied petroleum gas(LPG) sweetening process. Aggregation behavior of the five sulfonated metallophthalocyanines(MSPc, M=Fe,Co,Ni,Cu,Zn) in the same or different solvents was studied. The influencing factors of inactivation and the influence of aggregation behavior on activity of catalytic oxidation were investigated. The results show that the aggregation of sulfonated metallophthalocyanines is significantly affected by solvents. The aggregation aggravates with the increasing of polarity of the solvent and storage period. Besides, the aggregation of sulfonated metallophthalocyanines is also affected by central metals. The activity of CoSPc and CuSPc catalytic oxidation of thiol is markedly reduced nearly 20% because of the aggregation.