Purification equipment for high-purity carbon dioxide

The utility model discloses purification equipment for high-purity carbon dioxide. The purification equipment comprises a desulfurization tank, a catalysis tank and two adsorption tanks which are connected in parallel, wherein one adsorption tank is standby and the other adsorption tank is used; a gas inlet of the desulfurization tank is communicated with a raw material gas inlet through a raw material pipeline and a raw material inlet valve, a gas outlet of the desulfurization tank is communicated with a gas inlet of the catalysis tank through a first pipeline, and a gas outlet of the catalysis tank is communicated with a gas inlet of the adsorption tank through a second pipeline; a gas outlet of the adsorption tank is connected with a product gas outlet through a product gas output pipeline; the second pipeline bypass is communicated with a regenerated gas output pipeline communicated with the regenerated gas outlet; and the product gas output pipe bypass is connected with a regenerated gas input pipeline.