Method for preparing FeMn-ZSM-5 type molecular sieve based on Fischer-Tropsch synthesis waste residues and application of FeMn-ZSM-5 type molecular sieve

The invention discloses a method for preparing a FeMn-ZSM-5 type molecular sieve based on Fischer-Tropsch synthesis waste residues and application of the FeMn-ZSM-5 type molecular sieve, and belongs to the technical field of solid waste resource utilization. According to the method, the Fischer-Tropsch synthesis waste residues are used as raw materials, iron and manganese bimetals are doped on a molecular sieve framework through an in-situ synthesis method, and the Fe/Mn-ZSM-5 type molecular sieve is prepared; on the basis of ensuring that Si and Al in the raw materials participate in molecular sieve synthesis, iron and manganese elements are doped in a molecular sieve framework, so that a new acid center is formed and is combined with metal ions on the surface of the molecular sieve, and active sites on the surface of the catalyst are increased; meanwhile, Fe and Mn elements participate in a molecular sieve framework in the form of chemical bonds, a five-membered ring with a stable structure is formed, the f