| abstract |
In cleaning a tank container used for transporting VOCs, vaporized VOC gas remaining in the tank is discharged, collected and collected by a safe and simple method, and a small amount of residual VOC discharged in a recovery process is removed. Provide a method of detoxification treatment. When cleaning a tank container, an inert gas is introduced into the tank container, volatile organic compounds (referred to as VOC) remaining in the tank are purged, and the refrigerant is led to a condenser having a closed circuit. Cooling and liquefying, and then collecting the liquefied VOC introduced into the gas-liquid separator and burning the uncondensed trace VOC gas discharged from the gas-liquid separator in a catalytic combustor. A method of discharging, collecting and processing VOC remaining in a tank container. [Selection] Figure 1 |