DEVICE AND METHOD FOR THE FLEXIBLE USE OF ELECTRICITY

摘要

A device for chlor-alkali electrolysis, comprising a cathode half-cell, an oxygen-consuming electrode arranged therein, a line for feeding gaseous oxygen into the cathode half-cell, and a line for rinsing the cathode half-cell with inert gas, allows the flexible use of electricity by way of a method, wherein chlorine is produced in the device by chlor alkali electrolysis. In the event of a low current supply, the oxygen-consuming electrode is supplied with gaseous oxygen, and at a first cell voltage, oxygen to the oxygen-consuming electrode is reduced. In the event of a high current supply, no oxygen is supplied to the oxygen-consuming electrode, and at a second cell voltage that is higher than the first cell voltage, hydrogen is generated in the cathode.