Ultra-stable Y-type molecular sieve as well as preparation method and application thereof
A technology of molecular sieve and B acid, applied in the direction of molecular sieve catalysts, including molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of poor activity and selectivity of low-temperature liquid-phase transalkylation catalysts, improve the diffusion of reactants, and reduce side reactions , The effect of high proportion of B acid
Pending Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
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Abstract
The invention discloses an ultra-stable Y-type molecular sieve as well as a preparation method and application thereof. According to the ultra-stable Y-type molecular sieve provided by the invention, the pore volume of mesopores accounts for more than 50% of the total pore volume; and the amount of the strong B acid accounts for 40-70% of the total amount of the B acid. The ultra-stable Y-type molecular sieve has the characteristics of high proportion of strong B acid and abundant mesopores, can complete the reaction at a lower reaction temperature when being used for the transalkylation reaction of benzene and polyalkylbenzene, not only can improve reactant diffusion and enhance the accessibility of activity, but also can reduce the occurrence of side reactions, and has good activity and selectivity.
Application Domain
Molecular sieve catalystsMolecular sieve catalyst +5
Technology Topic
Molecular sieveTransalkylation +6
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- Effect test(1)
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PUM
Property | Measurement | Unit |
Acidity | 460.0 | µmol/g |
Specific surface area | 664.0 | m²/g |
Pore volume | 0.53 | cm³/g |
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