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In order to reduce the cost, a mixed template of BTMA and TMADA was used to synthesize SSZ-13 zeolite. The effects of the compositions of the mixed template on structure and morphology were characterized by XRD, SEM. The catalytic performance of prepared SSZ-13 was investigated in a fixed-bed reactor at 450 C for the methanol-to-olefin reaction ,the weight hourly space velocity (WHSV) was 1.75 h. The results show that cubic SSZ-13 crystals with good crystallinity and small size distribution (the average particle size of 0.3 um) was synthesized with the n(TMADA/n(TMADA+BTMA) is 0.3. In the methanol-to-olefin reaction, The yield of olefin can reaches 88%, and the lifetime of the catalyst is above 200min.

The synthesis of SSZ-13 with mixed template and it's catalytic performance for methanol to olefins reaction