Electrochemical system for operation in hot idling mode.

Abstract

The invention relates to an electrochemical system (1) suitable for hot idling, comprising: at least one electrochemical module (11) comprising a fuel electrode section, an oxidant electrode section, and a membrane; at least one liquid inlet conduit (10) leading to the electrochemical module (11), in particular to the fuel electrode section; at least one liquid outlet conduit (12) leading from the electrochemical module (11); and a gas recirculation unit (15) for recirculating a gas or gas mixture from the electrochemical module (11) to the fuel electrode section. The system comprises an inert gas unit (3), preferably nitrogen, for supplying inert gas to at least one liquid inlet conduit (10). The invention also relates to a method for carrying out electrolysis in a hot idling mode.