新型磷化钴和硫化钴催化剂的制备及其在加氢精制反应中的活性

Preparation of new cobalt phosphide and sulfide catalysts for the hydrotreating reactions

Yamei Yuan, Hui Chen, Danyang Zhao, Chi Wu, Jiao Geng, Jianyi Shen

Table 2 Chemical compositions analyzed by XRF and phases determined by XRD for the catalysts before and after the use for the HDS reactions.

Catalysts Co (wt%) P (wt%) S (wt%) P/Co (atom ratio) S/Co (atom ratio) Phases Particle size (nm) Co/Al2O3 56.9 - - - Co 3 Used Co/Al2O3 49.4 - 13.1 - 0.49 Co9S8 9 Co9S8/Al2O3 44.0 20.4 0.86 Co9S8 5.1 Used Co9S8/Al2O3 43.2 - 20.8 - 0.89 Co9S8 5.0 Co2P/Al2O3 52.4 17.2 - 0.37 Co2P 8.1 Used Co2P/Al2O3 42.7 15.0 6.8 0.39 0.16 CoP,Co2P,Co9S8 10.5 (Co2P) CoP/Al2O3 41.1 24.0 - 1.11 CoP 8.7 Used CoP/Al2O3 40.2 20.0 4.1 0.90 0.19 CoP 11.2