Phenol selective hydrogenation catalyst and preparation method and application thereof

The invention relates to a phenol selective hydrogenation catalyst. The catalyst comprises a carrier and an active component loaded on the surface of the carrier, wherein the carrier is an alkali group modified molecular sieve; the active components comprise a main active component and an auxiliary active component; the main active component comprises palladium; the auxiliary active component comprises boron and/or niobium. According to the present invention, the alkali group modified molecular sieve is adopted as the carrier, the main active component and the auxiliary active component are loaded, the active components are completely dispersed on the carrier, and the catalyst has advantages of excellent catalytic activity, stable catalytic performance and high practical value in the preparation of cyclohexanone through phenol hydrogenation. 一种苯酚选择性加氢催化剂，该催化剂包括载体以及负载在载体表面的活性组分；其中，所述载体为碱基团改性的分子筛；所述活性组分包括主活性组分以及副活性组分；所述主活性组分包括钯；所述副活性组分包括硼和/或铌。以碱基团改性的分子筛作为载体，并负载主活性组分和副活性组分，活性组分在载体上充分分散，并对苯酚加氢制备环己酮具有优异的催化活性，催化性能稳