Regeneration tank for biogas desulfurization

The utility model relates to the technical field of biogas desulfurization. The utility model relates to a regeneration tank, in particular to a regeneration tank for biogas desulfurization. Includinga body, a barrel and a barren liquor discharging assembly are respectively mounted at the tops of the left side and the right side of the body; the bottom of the cylinder body is connected with a foam outlet; the barren liquor discharging assembly comprises a barren liquor tank; the top of the body is connected with a spraying connector. The top of the injection interface is connected with an injector; the middle of the top of the body is connected with a blow-down pipe, one end of the ejector is connected with a rich liquor feeding assembly, a barren liquor inlet is further formed in the upper portion of the body, regenerated barren liquor overflows from the upper portion of the regeneration tank, overflowed barren liquor enters a barren liquor tank, a barren liquor pump is arranged in the barren liquor tank, an