Catalyst with hydrocarbon dehydrogenation catalysis, preparation method and application thereof, and hydrocarbon dehydrogenation reaction method
A catalyst and dehydrogenation technology, which is applied in the field of hydrocarbon dehydrogenation reaction, can solve the problem of low CNT loading, and achieve the effect of high crushing strength and high porosity
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[0032] According to the preparation method of the present invention, the aqueous dispersion contains a basic oxide source, at least one metal oxide source and optionally at least one treatment agent.
[0033] The base oxide source is selected from silica, alumina, titania, precursors of silica, precursors of alumina and precursors of titania.
[0034] The basic oxide source can be provided in various common forms, as long as the basic oxide can be introduced into the final prepared catalyst, for example, the basic oxide source can be an oxide and / or a precursor. The oxide may be provided in the form of sol, such as one or more of silica sol, titanium sol and aluminum sol. The precursors can be selected according to the type of expected base oxide.
[0035] For example, the precursor of alumina can be a substance that can be converted into alumina, such as a substance that can form alumina through hydrolysis condensation reaction and / or calcination, such as organic aluminum sa...
Embodiment 1-17
[0129] Adopt following method, prepare catalyst according to the condition that table 2 provides:
[0130] Mix the nano-carbon material as the raw material with the basic oxide source and optional additives, and then place the resulting mixture in a sealed autoclave with a polytetrafluoroethylene liner for hydrothermal treatment under autogenous pressure . After the temperature in the autoclave drops to the ambient temperature, the reactor is opened, and the obtained slurry is sent into a strip mold for drying and optional roasting to obtain a molded body (choose part of the molded body at random and grind to obtain the length Be the sample bar of 3-5mm and be used for measuring crush resistance strength and porosity, the result is listed in table 2), sieve after remaining molded body is crushed, obtain granular catalyst, its average particle size (being called for short particle size) Listed in Table 2.
Embodiment 18
[0132] The difference from Example 1 is: after mixing the nano-carbon material and the crystallization mother liquor at ambient temperature (25° C.), the mixture is directly fed into the mold.
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