Problems with the propylene system in low-temperature methanol washing
Thread Content
Is the load of the propylene system in low-temperature methanol washing adjusted based on that indicator? Should it be set by the system temperature or the suction pressure? For example: if one of the two vaporization units fails, the propylene load will definitely be high. So, what is used to reduce the load on the propylene system to an optimal level? Personally, I believe the propylene load is determined based on the set value of the suction pressure of the propylene compressor. I’m not sure if it’s correct; please advise me! Thank you!
It’s sufficient to focus on preventing stall! It is controlled through the adjustment of the anti-surge valve; if energy savings are the goal, the surge margin needs to be set lower, which requires careful operation!
The compressor load is 75–110%; below that, surge occurs.