NA-Y MOLECULAR SIEVE, H-Y TYPE MOLECULAR SIEVE, AND PROCESSES FOR PREPARING THE SAME, HYDROCRACKING CATALYST, AND HYDROCRACKING PROCESS

摘要

The present invention discloses a molecular sieve of the Na-Y type and a process for the preparation of the Na-Y type molecular sieve, an HY type molecular sieve and a process for the preparation of the HY type molecular sieve, a hydrocracking catalyst, and a hydrocracking process. The average grain diameter of the Na-Y molecular sieve is 2 to 5 μm, and the sum of the pore volumes of 1 to 10 nm in diameter represents 70 to 90% of the total pore volume of the Na-type molecular sieve. -Y. The H-Y molecular sieve obtained from the coarse grain Na-Y molecular sieve can be used as an acid component in the hydrocracking catalyst. When the hydrocracking catalyst containing the HY-type molecular sieve is applied in the hydrocracking reaction of heavy oils which contain macromolecules, it can provide a better cracking activity and a better product selection capability in the reaction reaction. hydrocracking.