Dry gas hydrogenation catalyst and preparation method thereof

The invention discloses a dry gas hydrogenation catalyst and a preparation method thereof. The catalyst comprises a carrier component aluminum oxide, active components including VIB group metal sulfide and VIII group metal sulfide, an active auxiliary agent a in a metallic state and selected from one or more of Cu, Ag, Ni, Co, W and Mo, and an active auxiliary agent b in an oxidation state and selected from one or more of Li, Na, K, Cs, Mg and Ca. The preparation method comprises the following steps: taking pseudo-boehmite dry glue powder, roasting, impregnating with an active component impregnating solution, drying, roasting, and roasting in a mixed atmosphere of H2S and H2 to obtain powder E; impregnating the pseudo-boehmite dry glue powder with an active auxiliary agent a impregnating solution, drying, and roasting in a hydrogen atmosphere to obtain powder F; and mixing the powder E with the powder F, adding an active auxiliary agent b impregnation liquid, molding, drying, and roasting to obtain the dry ga