Patent ID: 6843269
Filing Date: 2005-01-18
Classification: B65D,Y10T

Abstract:
1. An inerting apparatus connected to a storage tank containing a combustible liquid and having an ullage region containing oxygen, the apparatus comprising: an oxygen-scavenging molecular sieve zone which selectively removes oxygen from a gas flowed through it and having an inlet connected by an inlet line in gas-flow communication to the ullage region and an outlet connected by a return line in gas-flow communication with the ullage region; and a pressurizing mechanism operably connected to the apparatus together with one or more valves operable to control flow through the inlet line and the return line to flow ullage gas from the ullage region to and through the molecular sieve zone to provide an oxygen-depleted return ullage gas, and to flow the return ullage gas back to the ullage region.