The conversion of n-hexane and methanol into value-added aromatic compounds is a promising method for their industrially relevant utilization. In this study, intergrown ZSM-5/ZSM-11 crystals were synthesized and their resulting catalytic performance was investigated and compared to those of the isolated ZSM-5 and ZSM-11 zeolites. The physicochemical properties of ZSM-5/ZSM-11 intergrown zeolite were analyzed using X-ray diffraction, N₂ isothermal adsorption-desorption, the temperature-programmed desorption of ammonium, scanning electron microscopy, Fourier transform infrared spectra of adsorbed pyridine, and nuclear magnetic resonance of ²⁷Al, and compared with those of the ZSM-5 and ZSM-11 zeolites. The catalytic performances of the materials were evaluated during the co-feeding reaction of methanol and n-hexane under the fixed bed conditions of 400°C, 0.5 MPa (N₂), methanol:n-hexane = 7:3 (mass ratio), and weight hourly space velocity = 1 h⁻¹ (methanol). Compared to the ZSM-5 and ZSM-11 zeolites, the ZSM-5/ZSM-11 zeolite exhibited the largest specific surface area, a unique crystal structure, moderate acidity, and suitable Brønsted/Lewis acid ratio. The evaluation results showed that ZSM-5/ZSM-11 catalyst exhibited better catalytic reactivity than the ZSM-5 and ZSM-11 catalysts in terms of methanol conversion rate, n-hexane conversion rate, and aromatic selectivity. The outstanding catalytic property of the intergrown ZSM-5/ZSM-11 was attributed to the enhanced diffusion associated with its unique crystal structure. The benefit of using zeolite intergrowth in the co-conversion of methanol and alkanes offers a novel route for future catalyst development.

的转化ñ -己烷和甲醇成有附加值的芳香族化合物为他们的工业相关的利用率有希望的方法。在这项研究中，合成了互生的ZSM-5 / ZSM-11晶体，并研究了它们所产生的催化性能，并将其与分离出的ZSM-5和ZSM-11沸石的催化性能进行了比较。用X射线衍射，N ₂等温吸附-脱附，铵的程序升温脱附，扫描电子显微镜，吸附吡啶的傅立叶变换红外光谱和核磁共振等方法分析了ZSM-5 / ZSM-11共生沸石的理化性质。磁共振²⁷Al，并与ZSM-5和ZSM-11沸石进行比较。的材料的催化性能甲醇共进料反应过程中进行评价，Ñ 400℃的固定床条件下-己烷，0.5兆帕（N ₂），甲醇：Ñ己烷= 7:3（质量比） ，每小时时空重= 1 h ^-1（甲醇）。与ZSM-5和ZSM-11沸石相比，ZSM-5 / ZSM-11沸石具有最大的比表面积，独特的晶体结构，适中的酸度和合适的布朗斯台德/路易斯酸比。评价结果表明，就甲醇转化率n而言，ZSM-5 / ZSM-11催化剂表现出比ZSM-5和ZSM-11催化剂更好的催化反应活性。-己烷转化率和芳族选择性。ZSM-5 / ZSM-11共生的出色催化性能归因于与其独特的晶体结构相关的增强的扩散。在甲醇和烷烃的共转化中使用沸石共生的好处为将来的催化剂开发提供了一条新颖的途径。