Tank with containment chamber and separator
A fluid storage tank has an internal spill containment chamber and a separator having a fluid inlet, a gas outlet and a liquid outlet passing into the storage tank.
1. A fluid storage tank having a tank wall defining an interior volume, the tank comprising:
(a) an internal spill containment chamber defined by a containment wall having an internal portion which completely separates the chamber from the tank interior volume;
(b) a separator disposed within the chamber and comprising a fluid inlet, a gas outlet and a metering system, a liquid outlet passing through the containment wall and in fluid communication with the interior volume, and a flow valve.
2. The tank of claim 1 wherein the containment wall comprises an exterior portion extending beyond the tank wall.
3. The tank of claim 2 wherein the fluid inlet or the gas outlet, or both the fluid inlet and gas outlet pass through the exterior portion of the containment wall.
4. The tank of claim 1 further comprising a catalytic heater disposed within the containment chamber.
5. The tank of claim 1 further comprising a tank suckout valve and pipe, for applying a vacuum to the tank contents.
6. The tank of claim 5 further comprising a containment chamber suckout valve and pipe.
7. The tank of claim 1 further comprising a methanol tank disposed within the containment chamber and a methanol injection pipe connected to the separator.