Olefin isomerization catalyst as well as preparation method and application thereof

The invention discloses an olefin isomerization catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: step 1, roasting a precursor ofaluminum oxide; step 2, impregnating the aluminum oxide obtained by roasting in the step 1 with a first impregnation liquid to finish modification, and then drying and roasting; 3, adding the modifiedaluminum oxide obtained in the step 2 into a second solution for ion exchange, and then washing, drying and roasting to obtain the olefin isomerization catalyst, wherein the first impregnation liquidcomprises a main group element precursor, and the second solution comprises a transition metal precursor. The catalyst obtained by the method provided by the invention has high selectivity and high product yield, and the catalyst is not easy to inactivate. 本发明公开了一种烯烃异构化催化剂及其制备方法与应用，包括如下步骤：步骤1，对氧化铝的前驱物进行焙烧；步骤2，用第一浸渍液对步骤1焙烧得到的氧化铝进行浸渍，以完成改性，然后干燥、焙烧；步骤3，将步骤2得到的改性氧化铝加入第二溶液中进行离子交换，然后洗涤、干燥、焙烧，得到烯烃异构化催化剂；其中，第一浸渍液包含主族元素前驱体，第二溶液包含过渡