Patent AT-E400374-T1: [Translated] METHOD AND DEVICE FOR CLEANING THE INTERNAL OF A TANK

The method involves sucking gas mixture from a crude oil tank (10), and supplying inert gas into the tank. The energy content of the sucked gas mixture is determined. The gas mixture is supplied into a compressor (38) for compressing the gas mixture, when the energy content of the gas mixture exceeds a limitation value. The gas mixture is supplied into a load unit (40), when the energy content of the gas mixture is below the limitation value. Independent claims are also included for the following: (1) a device for suction of a gas mixture from a tank (2) a cleaning vehicle for cleaning a tank.