Clean preparation system of ethylene sulfate

The utility model relates to the technical field of ethylene sulfate preparation, and discloses a clean preparation system of ethylene sulfate, which comprises a reaction unit, a concentration unit and a tail gas absorption unit, the reaction unit comprises a reaction device and an ozone generator connected with the reaction device, and the tail gas absorption unit comprises a primary tail gas absorption device. And ethylene sulfite is contained in the first-stage tail gas absorption device. According to the technical scheme, ruthenium tetroxide steam, oxygen and other tail gas generated in the reaction process are absorbed and purified by the tail gas absorption device, and can be respectively returned to the reaction device for cyclic utilization and regenerated by the ozone generator for cyclic utilization; after the reaction is finished, a mixed solution of dichloroethane and ethylene sulfate is concentrated, an ethylene sulfate crude product and a dichloroethane solvent are obtained, and dichloroethane a