Hydrogen type boron-containing EU-1 molecular sieve and preparation method thereof, C8 aromatic isomerization catalyst and preparation method and application thereof

The invention relates to the technical field of catalysts, and discloses a hydrogen type boron-containing EU-1 molecular sieve and a preparation method thereof, and a C8 aromatic hydrocarbon isomerization catalyst and a preparation method and application thereof. The molecular sieve contains metal cations, and the metal cations are alkali metal cations of which the atomic number is not less than 19 and/or alkaline earth metal cations of which the atomic number is not less than 19; in the hydrogen-type boron-containing EU-1 molecular sieve, the ratio of the molar weight of the metal cations to the molar weight of the silicon atoms to the sum of the molar weights of the boron atoms and the aluminum atoms is (0.05-0.7): (10-100): 1, and the molar ratio of the content of the boron atoms to the content of the aluminum atoms is (0.1-1.5): 1. The C8 aromatic hydrocarbon isomerization catalyst provided by the invention is used for catalyzing C8 aromatic hydrocarbon isomerization reaction, and can improve the yield of