This paper presents a study of the synthesis of AlPO₄-5 and AlPO₄-36 materials doubly substituted by Si and Zn, as acid function and aromatizing function, respectively. The physicochemical properties of the zeotypes were studied by XRD, adsorption of N₂, Temperature Programmed Desorption with NH₃, ³¹P MAS NMR and SEM. The incorporation of Zn and Si has shown an important effect on the acidic, textural and morphological properties of the samples. The particle size has a significant effect on the catalytic activity in the reaction of methanol to hydrocarbons in terms of methanol conversion and selectivity. It was observed that as the particle size decreases, the methanol conversion increases causing the catalyst to deactivate in a shorter time. The incorporation of Zn improved the selectivity to total aromatics by the aromatizing effect of Zn. The SAPO-5 (S5) material having a smaller particle size showed complete conversions of methanol. In contrast, the ZnAPO-5 (Z5) material showed low conversions but a high selectivity to total aromatics (41%). On the other hand, the material S36-2 presented a high selectivity to aromatics (58%) due to the high amount of Zn and Si. Both metals provided a certain acidic character to the materials.

本文研究了被硅和锌双重取代的AlPO ₄ -5和AlPO ₄ -36材料的合成，分别作为酸功能和芳香化功能。通过X射线衍射，N _2的吸附，NH _3的程序升温脱附，³¹研究了分子筛的理化性质。P MAS NMR和SEM。锌和硅的掺入对样品的酸性，质构和形态学性质显示出重要的影响。就甲醇转化率和选择性而言，粒径对甲醇与烃反应中的催化活性具有重大影响。观察到，随着粒度减小，甲醇转化率增加，导致催化剂在较短时间内失活。Zn的掺入通过Zn的芳香化作用改善了对总芳族化合物的选择性。具有较小粒径的SAPO-5（S5）材料显示出甲醇完全转化。相反，ZnAPO-5（Z5）材料显示出较低的转化率，但对总芳烃的选择性较高（41％）。另一方面，由于大量的Zn和Si，材料S36-2对芳族化合物的选择性很高（58％）。两种金属都为材料提供了一定的酸性。