Catalytic gasoline hydro-upgrading catalyst containing mesoporous-macroporous ZSM-5 molecular sieve and preparation method of catalytic gasoline hydro-upgrading catalyst
A technology of ZSM-5 and catalytic gasoline, which is applied in molecular sieve catalysts, catalyst activation/preparation, physical/chemical process catalysts, etc., and can solve the problems of unseen catalytic gasoline hydrogenation and upgrading catalysts, etc.
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Embodiment 1
[0035] Catalyst A prepared in this embodiment, by catalyst weight, CoO 1.9wt%, MoO 36.0 wt%, 71.1 wt% mesoporous-macroporous ZSM-5 molecular sieve, 21.0 wt% alumina.
[0036] First, 2084g tetraethyl orthosilicate, 28g sodium metaaluminate, 9900g deionized water and 24g sodium hydroxide were formulated to make each component 1.0SiO2 based on the oxide molar ratio. 2 :0.01Al 2 o 3 :0.08Na 2 O:55.0H 2 The mixture gel of O was stirred and refluxed in the container at 85°C for 22h. Before crystallization, styrene-butadiene rubber microemulsion was added to the mixture gel at the ratio of R=5.0, and then the synthesized product was crystallized at 185°C for 40h. Filtration, washing with water, drying at 110°C for 7 hours, calcination at 540°C for 5 hours, ion exchange with 0.5mol / L ammonium chloride aqueous solution at 60°C for 4 hours, the mesoporous-macroporous ZSM-5 molecular sieve (silicon-aluminum atomic molar ratio 30 , specific surface area 325m 2 / g).
[0037] Take by...
Embodiment 2
[0041] The catalyst prepared in this example is B, and its preparation method is the same as in Example 1, except that the preparation process of ZSM-5 molecular sieve is as follows: first, 2084g tetraethyl orthosilicate, 35g sodium metaaluminate, 9900g deionized water And 24g sodium hydroxide is formulated into each component is 1.0SiO in oxide molar ratio 2 :0.01Al 2 o 3 :0.08Na 2 O:55.0H 2 The mixture gel of O was stirred and refluxed in the container at 90°C for 12h. Before crystallization, a nitrile rubber microemulsion was added to the mixture gel at the ratio of R=6.0, and then the synthesized product was crystallized at 190°C for 40h. Filtration, washing with water, drying at 120°C for 5 hours, calcination at 550°C for 4 hours, and ion exchange with 0.5mol / L ammonium chloride aqueous solution at 60°C for 4 hours, the silicon-aluminum atom molar ratio is 40 and the specific surface area is 322m 2 / g of mesoporous-macroporous ZSM-5 molecular sieve.
Embodiment 3
[0043] The catalyst prepared in the present embodiment is C, and its preparation method is the same as in Example 1, except that the preparation process of the ZSM-5 molecular sieve is as follows: 1000g water glass, 88g aluminum sulfate, 7640g deionized water and 200g vitriol oil ( 95-98wt%) is formulated as 1SiO in terms of molar ratio of oxides 2 :0.01Al 2 o 3 :0.55Na 2 O:62.4H 2 The mixture gel of O was stirred and refluxed in the container at 80°C for 24h. Before crystallization, styrene-butadiene rubber microemulsion was added to the mixture gel at the ratio of R=2.5, and then the synthesized product was crystallized at 185°C for 48h. Filtration, washing with water, drying at 130°C for 4 hours, calcination at 560°C for 3 hours, and ion exchange with 0.5mol / L ammonium chloride aqueous solution at 60°C for 4 hours, the silicon-aluminum atom molar ratio is 50 and the specific surface area is 318m 2 / g of mesoporous-macroporous ZSM-5 molecular sieve.
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