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Preparation of Small Crystalline ZSM-5 and Its Application in Conversion of Methanol to Aromatic

机译:ZSM-5小晶体的制备及其在甲醇制芳烃中的应用

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Small crystalline ZSM-5 was synthesized by a hydrothermal synthesis procedure and was characterized by XRD, SEM and N2-absorption. The results show that small crystalline ZSM-5 particles grow into larger agglomerates with a diameter of 100-400 nm, resulting in mesopore and higher surface area. During conversion of methanol to aromatics, small crystalline ZSM-5 catalyst performances better than micron-size ZSM-5 catalyst in aromatic selectivity and lifetime. The aromatic selectivity could reach to 21.7%, and the small crystalline ZSM-5 catalyst shows no deactivation during first 24h.
机译:通过水热合成方法合成了小晶体ZSM-5,并通过XRD,SEM和N2吸收进行了表征。结果表明,小的晶体ZSM-5颗粒会长成直径为100-400 nm的较大的团聚体,从而导致中孔和更大的表面积。在甲醇转化为芳烃的过程中,小晶体ZSM-5催化剂在芳烃选择性和寿命方面的性能优于微米级ZSM-5催化剂。芳烃的选择性可以达到21.7%,并且小结晶ZSM-5催化剂在最初的24小时内没有失活。

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