Synthesis of an excellent MTP catalyst: hierarchical ZSM-5 zeolites with great mesoporosity.

ABSTRACT: A unique organosiloxane-polyether amine (OPA) was produced and used as mesoporogen to efficiently synthesize hierarchical ZSM-5 zeolites with great mesoporosity. We have employed silica sol and tetraethylorthosilicate, respectively, to investigate the influence of different silicon sources on hierarchical zeolites in the presence of OPA. The mesopores of synthesized samples focused on 6-15 nm, and the external surface area varied from 185 to 463 m² g^-1 where the micropore surface area was maintained at 245-334 m² g^-1. Benefiting from the superior structure properties, these samples were used as catalysts in the reaction of methanol to propylene, and the optimal one catalysed for 180 h with methanol conversion above 95%. The as-produced OPA could

SUBMITTER: Song G 

PROVIDER: S-EPMC6304151 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature