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发明公开
CN107235497A 一种酸性分布可调的多级孔道复合分子筛及其制备方法 有权

一种酸性分布可调的多级孔道复合分子筛及其制备方法
摘要：
一种酸性分布可调的多级孔道复合分子筛按氧化物计，摩尔比组成为：SiO2：Al2O3=4.6‑982，分子筛含有TON和MTT骨架拓扑结构，ZSM‑22：ZSM‑23摩尔比为10‑90：90‑10，BET比表面253.2‑283.7 m2/g，颗粒为长度≤1μm，外径20‑30nm棒状物。本发明复合分子筛具有多级酸性、孔道等特点，且TON/MTT比例分布可调，并可在较宽范围内调变硅铝比。
摘要（英）：

The invention relates to a hierarchical porous composite molecular sieve with adjustable acidity distribution. The composition of the molecular sieve in molar ratio is that SiO2:Al2O3 is equal to 4.6-982, the molecular sieve contains TON and MTT framework topological structures, the molar ratio of ZSM-22 to ZSM-23 is (10-90):(90-10), the specific surface area of BET is 253.2-283.7m<2>/g, and each granule is a stick-like substance with the length less than or equal to 1 Mum and the outer diameter of 20-30nm. The composite molecular sieve provided by the invention has the characteristics of hierarchical acidity, hierarchical pores and the like, the TON/MTT proportional distribution is adjustable, and silica-alumina ratio can be adjusted and changed in a wider range.

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