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发明公开
CN108745406A 一种增强Silicalite-1沸石分子筛酸性的方法及其在链烷烃脱氢中的应用 无效 - 撤回

一种增强Silicalite-1沸石分子筛酸性的方法及其在链烷烃脱氢中的应用
摘要：
本发明提供一种增强Silicalite‑1沸石分子筛酸性的方法，包括如下步骤：将Silicalite‑1沸石分子筛置于锌盐水溶液中浸渍；将浸渍完锌盐水溶液的Silicalite‑1沸石分子筛干燥，得到负载锌盐的固形物；将固形物进行焙烧，得到负载ZnO的Silicalite‑1沸石分子筛。本发明将ZnO负载于Silicalite‑1沸石分子筛上，可使Silicalite‑1沸石分子筛的酸性、酸量显著增强，产生的酸性中心具有独特的催化性能，可用于催化丙烷或异丁烷脱氢反应，具有反应活性高、烯烃选择性好、裂解干气少等显著优点。
摘要（英）：

The invention provides a method for reinforcing acidity of a Silicalite-1 zeolite molecular sieve acidity. The method comprises the following steps of impregnating the Silicalite-1 zeolite molecular sieve into a zinc salt water solution; drying the Silicalite-1 zeolite molecular sieve after impregnating in the zinc salt water solution, so as to obtain the zinc salt-loaded solid substance; roastingthe solid substance, so as to obtain the ZnO (zinc oxide)-loaded Silicalite-1 zeolite molecular sieve. The method has the advantages that ZnO is loaded onto the Silicalite-1 zeolite molecular sieve,so that the acidity and acid content of the Silicalite-1 zeolite molecular sieve are obviously reinforced; the produced acid center has the unique catalyzing property, and can be used for catalyzing propane or isobutene to generate dehydrogenization reaction; the reaction activity is high, the olefin selectivity is good, the amount of splitting decomposition dry gas is less, and the like.

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