The synthesis of SSZ-13 with mixed template and its catalytic performance for methanol to olefins reaction
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 ℃ for the methanol-to-olefin reaction,the weight hourly space velocity (WHSV) was 1.75 h-1.The results show that cubic SSZ-13 crystals with good crystallinity and small size distribution (the average particle size of 0.3 urn) 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.
CHA SSZ-13 MTO mixed template BTMA+
Yunshui Deng Yuan Li Yu SU
Tianjin Polytechnic University,school of environmental and chemical engineering Tianjin,300387,China
国际会议
沈阳
英文
997-1000
2012-09-26(万方平台首次上网日期,不代表论文的发表时间)