Nickel modified HY molecular sieve oxygen carrier with three-dimensional porous structure as well as preparation and application thereof
A porous structure, three-dimensional technology, applied in molecular sieve catalysts, inorganic chemistry, hydrogen, etc., can solve the problems of complex liquid phase product components, complicated refining process, difficult large-scale application, etc., and achieve good metal particle dispersion and catalytic effect , The process is simple and easy, and the effect of low cost
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Embodiment 1
[0047] Oxygen carrier preparation:
[0048] Take 29.081g Ni(NO 3 ) 2 ·6H 2O, 52.821g NaY molecular sieve (silicon to aluminum ratio is 4.8) and 106.89g NH 4 Dissolve Cl in 1L of distilled water, stir the mixture in the beaker with a magnetic stirrer at a speed of 550r / min at room temperature for 2 hours, then slowly drop 1mol / L ammonium carbonate solution into the solution with a rubber dropper until the solution pH = 3.4, continue to stir until the solution becomes a colloidal suspension. Dry the suspension at 105°C for 12h in a blast drying oven, put the dried solid into a muffle furnace, and calcinate at 400°C for 2h and then at 900°C for 4h in an air atmosphere. After cooling to room temperature, a Ni / HY oxygen carrier is obtained, wherein the mass content of Ni is 10%, and the mass content of HY molecular sieve is 90%.
[0049] Catalyst activity evaluation:
[0050] The chemical chain reformation reaction of wood vinegar is carried out on a small fixed bed device. F...
Embodiment 2
[0054] Oxygen carrier preparation:
[0055] Take 29.081g Ni(NO 3 ) 2 ·6H 2 O, 23.455g NaY molecular sieve (silicon to aluminum ratio is 4.8) and 106.89g NH 4 Dissolve Cl in 1L of distilled water, stir the mixture in the beaker with a magnetic stirrer at a speed of 550r / min at room temperature for 2 hours, then slowly drop 1mol / L ammonium carbonate solution into the solution with a rubber dropper until the solution pH = 3.4, continue to stir until the solution becomes a colloidal suspension. Dry the suspension at 105°C for 12h in a blast drying oven, put the dried solid into a muffle furnace, and calcinate at 400°C for 2h and then at 900°C for 4h in an air atmosphere. After cooling to room temperature, a Ni / HY oxygen carrier was obtained, wherein the mass content of Ni was 20%, and the mass content of HY molecular sieve was 80%.
[0056] Catalyst activity evaluation:
[0057] The chemical chain reformation reaction of wood vinegar is carried out on a small fixed bed devic...
Embodiment 3
[0059] Oxygen carrier preparation:
[0060] Take 29.081g Ni(NO 3 ) 2 ·6H 2 O, 23.455g NaY molecular sieve (silicon to aluminum ratio is 4.8) and 106.89g NH 4 Dissolve Cl in 1L of distilled water, stir the mixture in the beaker with a magnetic stirrer at a speed of 550r / min at room temperature for 2 hours, then slowly drop 1mol / L ammonium carbonate solution into the solution with a rubber dropper until the solution pH = 3.4, continue to stir until the solution becomes a colloidal suspension. Dry the suspension at 105°C for 12h in a blast drying oven, put the dried solid into a muffle furnace, and calcinate at 400°C for 2h and then at 900°C for 4h in an air atmosphere. After cooling to room temperature, a Ni / HY oxygen carrier was obtained, wherein the mass content of Ni was 20%, and the mass content of HY molecular sieve was 80%.
[0061] Catalyst activity evaluation:
[0062] The chemical chain reformation reaction of wood vinegar is carried out on a small fixed bed devic...
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