Hydrogenation active protective agent with alkaline earth metal-containing alumina as carrier, preparation and application
A technology for hydrogenation activity protection and hydrogenation activity, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as deactivation of downstream catalysts
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Embodiment 1
[0037] Take by weighing the dry rubber powder (dry basis is 73% that Changling Refinery Catalyst Factory produces, and wherein pseudo-boehmite content is 68%, and gibbsite content is 5 weight %, and surplus is amorphous alumina) 1000 Gram,, 30 grams of Tianjing powder (product of Henan Lankao Tianjing Rubber Factory), 30g of hydroxymethyl cellulose are mixed, then add 1200 milliliters of aqueous solutions containing 7g of magnesium nitrate, and extrude into an outer diameter of 2.5mm on a plunger type extruder , a Raschig ring strip with an inner diameter of 1.0mm. The wet strip was dried at 120°C for 4 hours and calcined at 960°C for 3 hours to obtain carrier Z1. The physical and chemical properties of carrier Z1 are shown in Table 1.
[0038] Table 1
[0039] carrier number
Embodiment 2
[0042] Get the carrier Z1200 grams that embodiment 1 prepares, use 500 milliliters to contain V 2 o 5 50 g / L, NiO14 g / L mixed solution of ammonium metavanadate and nickel nitrate was impregnated for 1 hour, filtered, dried at 120°C for 4 hours, and calcined at 400°C for 3 hours to obtain protective agent C1. The composition of protective agent C1 is listed in Table 2.
Embodiment 3
[0046] Get the carrier Z1200 grams that embodiment 1 prepares, use 500 milliliters to contain V 2 o 5 18 g / L, NiO 28 g / L mixed solution of ammonium metavanadate and nickel nitrate was impregnated for 1 hour, filtered, dried at 120°C for 4 hours, and calcined at 400°C for 3 hours to obtain protective agent C2. The composition of protectant C2 is listed in Table 2.
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