In present work, bi-phases composite zeolites consisting of SAPO-5 and SAPO-34 (named as SSC) are prepared by a traditional hydrothermal way, and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), N₂ adsorption–desorption, intelligent gravimetric analyzer (IGA), intrusive mercury technology, and NH₃-TPD techniques. The results display that the crystals in the as-synthesized composites have a hierarchical pore system with a size of about 3–130 nm, which displays a butterfly-like pattern on the crystal faces and runs throughout the whole crystal. Catalytic performances of the as-synthesized SSC catalysts are tested during methanol to olefin (MTO). As compared with a microporous composite catalyst, the hierarchical SSC composite catalyst displays excellent catalytic performances with a prolonged catalytic life and an elevated selectivity for light olefins.

在目前的工作中，由SAPO-5和SAPO-34组成的双相复合沸石（称为SSC）是通过传统的水热法制备的，并通过X射线衍射（XRD），扫描电子显微镜（SEM），N ₂吸附-解吸，智能重量分析仪（IGA），侵入式汞技术和NH ₃-TPD技术。结果表明，合成后的复合材料中的晶体具有大约3–130 nm的分级孔隙系统，该晶体系统在晶体表面显示蝴蝶状图案，并贯穿整个晶体。在甲醇制烯烃（MTO）期间测试了合成后的SSC催化剂的催化性能。与微孔复合催化剂相比，分级SSC复合催化剂显示出优异的催化性能，具有延长的催化寿命和提高的对轻烯烃的选择性。