Catalyst for pyrolysis C9 two-stage hydrogenation and preparation method thereof
A hydrogenation catalyst and catalyst technology, which are applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc. Hydrogen effect and other problems, to achieve the effect of enhancing the anti-carbon deposition ability, improving the anti-colloid ability, and avoiding the loss of a large amount of aromatic hydrocarbons
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Embodiment 1
[0023] HY molecular sieve 3.0g, B 2 o 315.0g, pseudo-boehmite 107.0g, stir evenly, add nitric acid, safflower powder and appropriate amount of distilled water, stir and roll evenly, then extrude, dry at 100°C for 5h, then raise the temperature to 900°C, Calcined in air for 5h under the condition of saturated water to obtain a composite oxide. Then weigh 1.5g of potassium carbonate and 9.5g of ruthenium nitrate and add a certain amount of distilled water to make an impregnating solution, and use the same amount of impregnation method to load it on the above composite oxide, let it stand for 24h, dry at 130°C for 3h, and roast at 500°C for 3h Finally, the desired composite oxide support is obtained. The carrier has an average pore diameter of 25nm, a pore volume of 0.65ml / g, and a specific surface area of 220m 2 / g. This vector was named as 1# vector.
[0024]
Embodiment 2
[0026] HY molecular sieve 5.0g, B 2 o 3 10.0g, pseudo-boehmite 117.0g, stir evenly, add nitric acid, safflower powder and appropriate amount of distilled water, stir and roll evenly, then extrude, dry at 150°C for 3h, then raise the temperature to 1000°C, Calcined in air for 4h under the condition of saturated water to obtain a composite oxide. Then weigh 6.4g of potassium nitrate and 4.8g of ruthenium nitrate and add a certain amount of distilled water to prepare an impregnating solution, and use the same amount of impregnation method to load it on the above composite oxide, let it stand for 24h, dry at 100°C for 4h, and roast at 600°C for 2h Finally, the desired composite oxide support is obtained. The carrier has an average pore diameter of 20nm, a pore volume of 0.82ml / g, and a specific surface area of 260m 2 / g. This vector was named as 2# vector.
[0027]
Embodiment 3
[0029] HY molecular sieve 4.0g, B 2 o 3 20.0g, pseudo-boehmite 98.6g, stir evenly, add nitric acid, safflower powder and appropriate amount of distilled water, stir and roll evenly, then extrude, dry at 130°C for 4h, then raise the temperature to 1100°C, Calcined in air for 3h under the condition of saturated water to obtain a composite oxide. Then weigh 4.3g of potassium nitrate and 7.8g of ruthenium chloride and add a certain amount of distilled water to make an impregnating solution, and use the same amount of impregnation method to load it on the above-mentioned composite oxide, let it stand for 24h, dry at 150°C for 2h, and roast at 700°C After 1 h, the desired composite oxide support was obtained. The carrier has an average pore diameter of 15nm, a pore volume of 0.47ml / g, and a specific surface area of 180m 2 / g. This vector was named as 3# vector.
[0030]
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