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发明公开
CN106902866A 分子筛包覆的核壳催化剂的制备方法及产品和应用 无效 - 驳回

分子筛包覆的核壳催化剂的制备方法及产品和应用
摘要：
本发明涉及一种分子筛包覆的核壳催化剂的制备方法，包括如下步骤：1)将CuO/ZnO/ZrO2/Al2O3催化剂分散到分子筛前驱体溶液中进行水热晶化反应，再经洗涤、干燥、煅烧、离子交换后，得到Hβ分子筛包覆CuO/ZnO/ZrO2/Al2O3的核壳催化剂；2)将步骤1)中得到的Hβ分子筛包覆CuO/ZnO/ZrO2/Al2O3的核壳催化剂进行改性处理，得到改性Hβ分子筛包覆CuO/ZnO/ZrO2/Al2O3的核壳催化剂。本发明还涉及上述制备方法得到的产品及应用，制备得到的核壳催化剂具有大比表面积、适宜的酸性、合理的硅铝比和孔结构，并具有优异的水热稳定性。
摘要（英）：

The invention relates to a preparation method of a molecular sieve-coated nuclear shell catalyst. The preparation method comprises the following steps: (1) dispersing a CuO/ZnO/ZrO2/Al2O3 catalyst into a molecular sieve precursor solution for hydrothermal crystallization reaction, and performing washing, drying, calcining and ion exchange, thus obtaining an Hbeta molecular sieve-coated CuO/ZnO/ZrO2/Al2O3 nuclear shell catalyst; (2) modifying the Hbeta molecular sieve-coated CuO/ZnO/ZrO2/Al2O3 nuclear shell catalyst obtained in the step (1), thus obtaining a modified Hbeta molecular sieve-coated CuO/ZnO/ZrO2/Al2O3 nuclear shell catalyst. The invention further relates to a product prepared through the preparation method and application of the product. The prepared nuclear shell catalyst has a large specific surface area, proper acidity and a reasonable silicon-to-aluminum ratio, is of a porous structure and has excellent hydrothermal stability.

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