METHOD AN APPARATUS FOR PROVIDING NITROGEN

摘要

The invention relates to a method for providing hydrogen using a gaseous-nitrogen production apparatus (9) by air separation and vaporisation of liquid nitrogen from a feedstock (1), wherein if the needs of a client for gaseous nitrogen are lower than a first threshold, the client is supplied with nitrogen (19), exclusively by vaporisation (5) of liquid nitrogen, and if the needs of a client for gaseous nitrogen are higher than a second threshold, the second threshold being higher than the first threshold, the client is supplied with nitrogen (11) at least partially by the nitrogen production apparatus (9).