Safe uncoupling of liquid gas lines - by creating processing section between two valves either side of coupling

摘要

Process for the uncoupling of a supply line between storage and transport containers in a liquefied gas system with the least possible leakage is claimed, in which a processing section is created between two valves from which the liquefied gas is purged by lowering the pressure to evaporate the liq. into gas and introducing inert gas which forces the gas into a disposal line. The coupling, which is in the processing section, is then opened.