NOVELTY - Three-tower device for recovering high purity ethylene, ethane using oil absorbent dry gas comprises a compressor, absorber, de-sorber and rectification column, the outlet of the raw material tank is connected to the inlet of the cooler and the compressor, the inlet of the cooler, the outlet of the raw material tank and the secondary cooler are connected, the outlet of the raw material tank and the inlet of the separation tank is connected to the secondary cooler, the outlet of the gas separation tank is connected to the inlet of the absorber.    USE - The device is used as Three-tower device for recovering high purity ethylene, ethane using oil absorbent dry gas (claimed).    DETAILED DESCRIPTION - Three-tower device for recovering high purity ethylene, ethane using oil absorbent dry gas comprises a compressor, absorber, de-sorber and rectification column, the outlet of the raw material tank is connected to the inlet of the cooler and the compressor, the inlet of the cooler, the outlet of the raw material tank and the secondary cooler are connected, the outlet of the raw material tank and the inlet of the separation tank is connected to the secondary cooler, the outlet of the gas separation tank is connected to the inlet of the absorber, the outlet of the gas liquid separation tank and inlet of the liquid desorption column are connected, the other two absorber liquid inlet and outlet of the gas desorption column are connected with the outlet of the secondary cooler, the cold stream bottom liquid outlet of the preheater is connected to the inlet of the desorption column, the outlet of the preheater cold stream is connected to the inlet of the rectification column, the fractionator bottom liquid inlet and outlet pressure pump are connected, the outlet of pressure pump and preheater are connected to the inlet of the heat stream and an absorbent cooler inlet and outlet of the preheater is connected to the hot stream, the inlet two absorbent column is connected to the outlet to a cooler, the inlet of the two cooler absorber is connected to the outlet of the absorbent mixer, the outlet of the absorbent absorber and the mixer is connected to the liquid inlet, the overhead absorption of a fuel exhaust outlet, and the ethylene and ethane fractionator overhead product connected to the outlet.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic representation of three-tower device for recovering high purity ethylene, ethane.