Regeneration of Spent Industrial NiMo/γ-Al2O3 Catalysts for HDS

Chinese Journal of Applied Chemistry ›› 1998, Vol. 0 ›› Issue (6): 11-15.

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Regeneration of Spent Industrial NiMo/γ-Al₂O₃ Catalysts for HDS

Su Jixin¹, Xiao Tiancun¹, Wang Haitao¹, Lu Yuli¹, Zhou Changli², Li Shuben², Zhang Kongyuan³

1. Department of Environmental Engineering, Shandong University, Jinan 250100;
2. Lanzhou Institute of Chemical Physics, Chinese Academy Sciences, Lanzhou;
3. Research Institute of Qilu Petro-chemical Corporation, Zibo

Received:1998-03-09 Revised:1998-09-28 Published:1998-12-10 Online:1998-12-10

Abstract

Abstract: The hydrodesulfurization(HDS) catalytic activity of spent industrial catalyst NiMo/γ-Al₂O₃ can be regenerated through oxidation below 723 K, calcination in air at 753 K for 3 h, and reduction at 673 K in H₂ for 2 h and oxidation at 723 K in air for 4 h successively. The activity for HDS of some regenerated samples can even be higher than that of the fresh catalyst sample.

Key words: NiMo/γ-Al₂O₃, hydrodesulfurization catalyst, regeneration, reduction-oxidation, calcination

Su Jixin, Xiao Tiancun, Wang Haitao, Lu Yuli, Zhou Changli, Li Shuben, Zhang Kongyuan. Regeneration of Spent Industrial NiMo/γ-Al₂O₃ Catalysts for HDS[J]. Chinese Journal of Applied Chemistry, 1998, 0(6): 11-15.

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Regeneration of Spent Industrial NiMo/γ-Al₂O₃ Catalysts for HDS

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