Hydrotalcite-like desulfurization catalyst as well as preparation method and application thereof

The invention discloses a hydrotalcite-like desulfurization catalyst and a preparation method and application thereof, the hydrotalcite-like desulfurization catalyst comprises the following raw material components: a metal salt mixed solution formed by mixing an M < 2 + > salt solution containing one or more divalent metal cations and an M < 3 + > salt solution containing one or more trivalent metal cations, the alkaline mixed solution is formed by mixing an alkaline solution containing hydroxyl ions and a Yn-salt solution containing another anion, the molar ratio of M < 2 + > to M < 3 + > is (2-6): 2, and the molar ratio of M < 2 + > to M < 3 + > to (OH-+ CO3 < 2->) is 1: (2-4). The hydrotalcite-like material adopted by the catalyst is a catalyst main body and can also be used as a carrier, and compared with a homogeneous catalyst in the prior art, the contact area between the active component of the catalyst and oxygen is larger, so that the catalytic activity is higher, the catalyst can be used for treatin