Currently we are running at higher Crude throughput and I have seen the following symptom in our Crude Tower:
Whenever the tray 32 vapor temperature above the Kero draw drop below 230 °C i.e. 225 °C, the top temperature would increase by 5 °C which will effect the Naphtha 90% cut.
When we increase the tray temp. back to 230 °C, the top tray temp back to normal. So what we do is we drop the MID P/A flow to raise up the tray 32 temp.
Does the above symptom is an indication of high tray loading or flooding?
Whenever the tray 32 vapor temperature above the Kero draw drop below 230 °C i.e. 225 °C, the top temperature would increase by 5 °C which will effect the Naphtha 90% cut.
When we increase the tray temp. back to 230 °C, the top tray temp back to normal. So what we do is we drop the MID P/A flow to raise up the tray 32 temp.
Does the above symptom is an indication of high tray loading or flooding?
