摘要
采用四种不同的工艺分别合成了立方晶型、纳米级、片晶SAPO-34分子筛以及分子筛微球四种不同晶型的SAPO-34分子筛,并对所合成的分子筛进行SEM和XRD表征,同时将上述四种分子筛分别进行分子筛催化剂的制备及其甲醇制烯烃(MTO)反应性能评价。结果表明,纳米级SAPO-34分子筛的催化剂在MTO反应中表现出较好的反应性能。
Four SAPO-34 molecular sieves with different crystal types, including cubic, nano-scale, lamellar and microsphere molecular sieves, were synthesized by different methods and characterized by SEM and XRD. The synthesized SAPO-34 molecular sieves were used to prepare the catalysts, and the performances of these catalysts in methanol-to-olefines(MTO) reaction were evaluated. The results showed that the nano-SAPO-34 molecular sieve catalyst exhibited optimal performance in MTO reaction.
引文
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