Effect of Carrier Processing Temperature on Its Properties for Adsorption of Active Metals  

作　　者：Zeng Shuangqin Yang Qinghe Li Dingjiangyi Nie Hong Li Dadong 

机构地区：[1]Research Institute of Petroleum Process,Beijing 100083

出　　处：《China Petroleum Processing & Petrochemical Technology》2012年第2期1-6,共6页中国炼油与石油化工（英文版）

摘　　要：The influence of the carrier pseudo-boehmite （PB）, which was impregnated with a Ni-Mo-P solution under over- saturation conditions and treated at different temperatures, on its property for adsorption of active metals （Ni, Mo） was studied. The results showed that the amount for adsorption of active metal was decreased with an increasing treatment tem- perature of the carrier. After phase transition of the carrier PB to γ-Al2O3, its capacity for adsorption of active metals was significantly reduced. The difference in properties for adsorption of active metals （Ni, Mo） by PB dried at 120℃ and γ-Al2O3 calcined at 600℃ was studied in detail. The results suggested that the ability of the PB carrier to adsorb metals was higher than that of theγ-Al2O3 carrier. Especially, the ratio of chemically adsorbed metals on the PB support was much higher than 3＇-alumina. The chemical adsorption sites on the PB carrier were proved to be much more than those on the γ-Al2O3 carrier. Ni and Mo chemical adsorption sites differed a lot on the carrier possibly because of the difference in chemical adsorption sites.The influence of the carrier pseudo-boehmite (PB), which was impregnated with a Ni-Mo-P solution under over-saturation conditions and treated at different temperatures, on its property for adsorption of active metals (Ni, Mo) was studied. The results showed that the amount for adsorption of active metal was decreased with an increasing treatment temperature of the carrier. After phase transition of the carrier PB to γ-Al2O3, its capacity for adsorption of active metals was significantly reduced. The difference in properties for adsorption of active metals (Ni, Mo) by PB dried at 120 ℃ and γ-Al2O3 calcined at 600 ℃ was studied in detail. The results suggested that the ability of the PB carrier to adsorb metals was higher than that of the γ-Al2O3 carrier. Especially, the ratio of chemically adsorbed metals on the PB support was much higher than γ-alumina. The chemical adsorption sites on the PB carrier were proved to be much more than those on the γ-Al2O3 carrier. Ni and Mo chemical adsorption sites differed a lot on the carrier possibly because of the difference in chemical adsorption sites.

关 键 词：PSEUDO-BOEHMITE Γ-AL2O3 hydrogenation catalyst CARRIER ADSORPTION 

分 类 号：O647.3[理学—物理化学]