Dry-gel conversion synthesis of SAPO-14 zeolites for the selective conversion of methanol to propylene

High-crystalline SAPO-14 zeolites were efficiently synthesized through dry-gel conversion (DGC) for the first time. Further using as a catalyst, the optimal SAPO-14 with proper acidity showed superior MTP performance with not only a very high propylene selectivity (76.2%) but also a large P / E ratio (7.19).