Light aromatic hydrocarbons's desulphurization unit

The utility model discloses a light aromatic hydrocarbons's desulphurization unit, including light aromatic hydrocarbons fractionating tower and digester, the digester sets up in light aromatic hydrocarbons fractionating tower output, be provided with the light aromatic hydrocarbons output tube between light aromatic hydrocarbons fractionating tower and the digester, light aromatic hydrocarbons output tube input sets up in light aromatic hydrocarbons fractionating tower bottom, and in extending to the light aromatic hydrocarbons fractionating tower, light aromatic hydrocarbons output tube output sets up in digester one side bottom, and extends to in the digester. The utility model discloses utilize rotating the fan at the digester internal rotation, forming the liquid hollowing to the liquid that rotates the fan top, avoided liquid to flow out in the crystal blown down tank, and when the calcium sulfate crystal reached a ration, the calcium sulfate crystal was saved, had avoided the interior calcium sulfate c