Development of a bifunctional catalyst for acetylene hydrogenation and liquid phase alkylation

A new bifunctional catalysts for acetylene hydrogenation and liquid phase alkylation was prepared by incorporating palladium into FX-01 β zeolite via ion exchange, so as to improve its adaptability to feedstock and increase its service life. Service life of the catalyst was tested by accelerated deactivation. Coke formed on the deactivated catalyst was characterized by TG and GC-MS. The results showed that selectivity and stability of the catalyst were greatly enhanced and yield of cumene was increased after the modification. The catalyst modified by incorporating palladium exhibited higher resistance to coke formation and longer service life; appropriate content of supported palladium was preferably 0.2% (mass fraction).