Sampling from the bottom of the ethylene sphere tank in summer revealed that the water content exceeded 30 ppm or even more – why?
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During the summer, sampling at the bottom of the ethylene spheres revealed that the water content was above 30 ppm or even higher; it decreased after some time of discharge, following further sampling. Has anyone observed a similar phenomenon? Why is this?
How should this situation be handled?
In this situation, the cut-off valve at the bottom of the tank is opened slightly up to the flare valve in order to drain out the water from that area; samples are taken continuously for inspection. The presence of water in the ethylene sphere tank means that water has entered the tank along with the product
Everything was normal when it entered the tank; it was only the water level at the bottom that was too high, and it gradually decreased after some discharge.