Ternary heterogeneous catalyst carrier as well as preparation method and application thereof

The invention discloses a ternary heterogeneous catalyst carrier as well as a preparation method and application thereof, and belongs to the technical field of material preparation and catalysis. According to the preparation method, a molybdenum source, an iron source and a saccharide carbon source which are low in cost and easy to obtain are subjected to two-step simple operation of dissolving and drying by distillation and are fully mixed to obtain a calcined precursor, and the Fe3Mo3N and Fe3Mo3C ternary heterogeneous carrier is directly obtained by adopting an inert atmosphere one-step calcination method. The reaction raw materials are all bulk chemicals which are low in price and easy to obtain; the preparation operation is safe and simple conventional basic operation, such as dissolving, stirring, drying, grinding, calcining and the like, and high-pressure reaction operation is avoided; inert carrier gas is adopted in the high-temperature calcination process, flammable and explosive gas such as hydrogen