METHOD FOR CLEANING AND SEPARATING A KRYPTON-XENON MIXTURE BY RECTIFICATION AND A PLANT FOR CARRYING OUT SAID METHOD

摘要

The invention relates to cryogenic engineering, in particular to purifying and separating a krypton-xenon mixture producible by means of air-separating plants and can be used in the chemical and oil-and-gas industries. The inventive method consists in purifying and separating the mixture by rectification, in cooling a compressed coolant in stills of rectification towers, wherein said coolant is removed and returned to a cooling cycle, in additionally removing radionuclides from krypton and xenon fractions and from krypton and xenon production flows by means of filtration and/or adsorption and/or rectification and/or absorption and/or chemical and/or physico-chemical methods in devices used for additionally removing radionuclides and in recertifying flows and cylinders with respect to the radionuclides content and/or activity prior to and after the filling thereof with separation products. A plant for carrying out said method is also disclosed. The invention makes it possible to additionally removing radionuclides from separation products in such a way that said products can be used, for example, for medical purposes ant to increase the cost efficiency of purification and separation processes.