BEA zeolite and new-developed medium-pore molecular sieves MCM-22 has high activity of hydrogen transfer reaction and good performance of catalytic crackingsimultaneously.

• 含碱性离子分子筛及其催化剂的酸碱性表征结果表明，裂化活性的提高主要与B酸量的增加有关，而氢转移反应活性的提高则可能是分子筛碱性位的碱性变化即碱量增加、碱强度提高所造成。