Mesoporous molecular sieve HMS loaded platinum-nickel element catalyst
A mesoporous molecular sieve and nickel element technology, which is applied in molecular sieve catalysts, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve the problems of fast catalyst deactivation, low catalyst conversion rate, and limited process application, etc., to achieve Effects of reducing side reaction products, prolonging life, and weakening force
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Embodiment 1
[0035] In the preparation process of the catalyst of the present invention, a platinum-containing mesoporous silicon HMS carrier is first synthesized, then nickel is supported, and finally sodium sulfate as a co-catalyst is continuously supported to finally obtain a catalyst product. Taking a specific compound as an example, the relevant preparation process is specifically described as follows.
[0036] (1) One-pot preparation of platinum-containing mesoporous molecular sieve HMS carrier
[0037] 1. Weigh 1.667g of dodecylamine cationic surfactant, 11.402g of ethanol, and 16.203g of water, and fully stir until clear to obtain A liquid;
[0038] 2. Weigh 6.944g of ethyl orthosilicate, 2.420g of ethanol, and 0.042g of chloroplatinic acid, stir and mix well to obtain liquid B;
[0039] At room temperature, slowly add liquid B into liquid A which is vigorously stirred, continue to stir for 15 min after the dropwise addition, and let stand at 25°C for 24 h;
[0040] Filtration, w...
Embodiment 2
[0047] In step (1),
[0048] In liquid A: the cationic surfactant is hexadecylamine; the specific dosage is 2.42g of hexadecylamine, 21.002g of ethanol, and 5.367g of water;
[0049] In liquid B: the specific dosage is 10.734g of ethyl orthosilicate, 6.944g of ethanol, and 0.042g of chloroplatinic acid;
[0050] At room temperature, slowly add solution B to solution A which was vigorously stirred, continue to stir for 20 min after the dropwise addition, and let stand for 20 h. Filtration, washing, and drying (drying at 130 °C for 4 h); finally, the product was calcined at 550 °C (heating rate: 2 °C / min) for 4 h to remove the template agent to obtain a platinum-containing mesoporous molecular sieve carrier;
[0051] In step (2),
[0052] Specifically, 0.297g of nickel nitrate and 0.184g of ethylenediamine were dissolved in deionized water,
[0053] Take 1 g of the mesoporous molecular sieve carrier obtained in step (1), use the equal volume impregnation method to load nickel...
Embodiment 3
[0057] In step (1),
[0058] In liquid A: the cationic surfactant is dodecylamine; the specific dosage is 1.667g dodecylamine, 11.402g ethanol, and 16.203g water;
[0059] In liquid B: the specific dosage is 6.944g of ethyl orthosilicate, 2.420g of ethanol, and 0.034g of chloroplatinic acid;
[0060] At room temperature, slowly add liquid B into liquid A which was vigorously stirred, continue stirring for 15 min after the dropwise addition, and let it stand for 24 h;
[0061] Filtration, washing and drying (drying at 120°C for 5h); finally, the product was calcined at 550°C (heating rate: 2°C / min) for 4h to obtain a platinum-containing mesoporous molecular sieve carrier;
[0062] In step (2),
[0063] Specifically, 0.297g of nickel nitrate and 0.184g of ethylenediamine were dissolved in deionized water,
[0064] Take 1 g of the mesoporous molecular sieve carrier obtained in step (1), load nickel element by equal volume impregnation method, and dry at 60°C for 4h; finally, t...
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