A kind of coal tar hydrodenitrogenation catalyst and its application
A hydrodenitrogenation and catalyst technology, which is applied in the field of medium and low temperature coal tar hydrodenitrogenation treatment and medium and low temperature coal tar hydrodenitrogenation catalyst, can solve the problem of short reaction time, no obvious stability, unsuitable continuous treatment, etc. problem, to achieve the effect of enhanced adsorption capacity, enhanced carrier strength, increased loading of auxiliary agents
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Embodiment 1
[0022] Example 1 Weigh a certain amount of γ-Al 2 o 3 Dry rubber powder (85%, Wt) and α-Al 2 o 3 ·(1~3)H 2 Two carbon blacks (9%, Wt) of NEROX 505 and FW 200 are mixed into the dry rubber powder (6%, Wt) as a pore-expanding agent, and the mass ratio M (NEROX 505):M (FW 200) =7:3, Mix with dilute nitric acid (1.5%, Wt), knead into a clover shape, and roast at 660°C for 4.5h to obtain the catalyst γ-Al 2 o 3 carrier. The catalyst carrier was soaked in deionized water for 3.6h, dried at 80°C, and then washed with Ni(NO 3 ) 2 ·6H 2 O (6%, Wt), (NH 4 ) 6 h 2 W 24 ·6H 2 The catalyst support was impregnated with O (16%, Wt) co-impregnation method for 6 hours, dried at 100°C for 6 hours, and calcined at 700°C for 4 hours to obtain the hydrodenitrogenation catalyst. The catalyst obtained in the above steps was impregnated with phosphoric acid (4.25%, Wt) solution in the same impregnation method, dried at 110 °C for 4 h, and calcined at 550 °C for 3 h to obtain a hydroden...
Embodiment 2
[0023] Example 2 Weigh a certain amount of γ-Al 2 o 3 Dry rubber powder (83%, Wt) and α-Al 2 o 3 ·(1~3)H 2 Two carbon blacks (9%, Wt) of NEROX 505 and FW 200 are mixed into the dry rubber powder (8%, Wt) as a pore-expanding agent, and the mass ratio M (NEROX 505): M (FW 200) = 3: 2, Mix with dilute nitric acid (1.5%, Wt), knead into a clover shape, and roast at 660°C for 4.5h to obtain the catalyst γ-Al 2 o 3 carrier. Soak the catalyst carrier in deionized water for 3 h, dry it at 80 °C, and use Ni(NO 3 ) 2 ·6H 2 O (10%, Wt), (NH 4 ) 6 h 2 W 24 ·6H 2 The catalyst support was impregnated with O (20%, Wt) co-impregnation method for 6 h, dried at 100 °C for 6 h, and calcined at 700 °C for 4 h to obtain the hydrodenitrogenation catalyst. The catalyst obtained in the above steps was impregnated with phosphoric acid (4%, Wt) solution in the same impregnation method, dried at 110 °C for 4 h, and calcined at 550 °C for 3 h to obtain a hydrodenitrogenation catalyst. Th...
Embodiment 3
[0024] Example 3 Weigh a certain amount of γ-Al 2 o 3 Dry rubber powder (81%, Wt) and α-Al 2 o 3 ·(1~3)H 2 Two carbon blacks (10%, Wt) of NEROX 505 and FW 200 were mixed into dry rubber powder (9%, Wt) as pore-expanding agents, M (NEROX 505): M (FW 200) = 1: 1, use dilute Nitric acid (1.5%, Wt) was mixed, kneaded into a clover shape, and calcined at 660°C for 4.5h to obtain the catalyst γ-Al 2 o 3 carrier. The catalyst carrier was soaked in deionized water for 4 h, dried at 80 °C, and then filled with Ni(NO 3 ) 2 ·6H 2 O (7%, Wt), (NH 4 ) 6 h 2 W 24 ·6H 2 The catalyst carrier was impregnated with O (12%, Wt) co-impregnation method for 6 hours, dried at 100°C for 6 hours, and calcined at 700°C for 4 hours to obtain the hydrodenitrogenation catalyst. Using phosphoric acid (3.75%, Wt) solution in the same impregnation method, the catalyst obtained in the above step was impregnated, dried at 110 °C for 4 h, and calcined at 550 °C for 3 h to obtain a hydrodenitrogenat...
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