The variation of the sawtooth activity is mainly related to the impurity concentration.
杂质聚中是锯齿活性变化的主要原因。
2
Physicochemical properties of the new catalysts were greatly improved, and the impurity removal activity and the stability enhanced.
其物化性能有显著改进，脱杂质活性和稳定性明显提高。
3
The catalyst prepared by the method has the advantages of uniform dispersion of metals, high use performance, and particularly higher activity for deep impurity removal process of hydrocarbon.