Surface amphiphilic nano iron sulfide catalyst, preparation method and application thereof

The invention relates to a surface amphiphilic nano iron sulfide catalyst, a preparation method and application thereof. The preparation method includes: making an iron source, sulfur source, ionic liquid and deionized water into an initial reaction mixture according to certain order and method, then conducting crystallization in a sealed high pressure reaction kettle under a hydrothermal condition, and carrying out filtration, washing and drying on the crystallization product so as to obtain the surface amphiphilic nano iron sulfide hydrogenation catalyst. According to the invention, the synthesis system uses ionic liquid, the prepared iron sulfide has nano size, also has very good surface amphipathicity, and has excellent dispersion and catalytic activity in polar and nonpolar catalytic reaction systems. The nano iron sulfide provided by the invention shows wonderful catalytic activity in suspension bed hydrogenation deasphalting, hydrodesulfurization, hydrodenitrogenation, aromatic hydrogenation and other