Size controllable synthesis of ZSM-5 zeolite and its catalytic performance in the reaction of methanol conversion to aromatics.

ABSTRACT: ZSM-5 zeolites were hydrothermally synthesized with commercial silica sol, and the crystal size was controlled by adding silicalite-1 seed in the synthetic system. The crystal size of ZSM-5 was affected by the crystallization time of seed, seed content and seed size. ZSM-5 zeolites with controllable particle size in the range of 200-2200 nm could be obtained. The prepared samples with different particle sizes were used for the reaction of methanol conversion to aromatics (MTA). The results suggested that the HZSM-5 catalyst with small crystal size showed much longer catalyst lifetime and higher selectivity for C₅ ⁺ hydrocarbons and aromatics, especially C₉ ⁺ aromatics in the MTA reaction. Moreover, the introduction of zinc (Zn) into the HZSM-5 ze

SUBMITTER: Niu X 

PROVIDER: S-EPMC8941405 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature