What is used as the reference for the maximum load of the air separation tower?
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May I ask what standard is used to determine the maximum operating load of an air separation tower? Lower tower pressure? Top tower pressure? The lower tower operates normally at 0.5 MPA, with the safety valve setting at 5.5 MPA. Can it operate properly at 5.4 MPA? The normal pressure in the upper tower is 50 KPA, with the safety valve setting at 100 KPA. If the amount of raw air supplied is increased, can the tower operate normally at pressures of 60 or 70 KPA?
What is being produced? The manufacturing process requires balance
Based on the designed operating pressure, overloading can easily lead to significant pipe vibration. At the designed pressure, the extraction rate should be increased gradually up to its maximum level in order to ensure the purity of the product, taking into account the designed operating pressure of both the unit and the pipes
It’s not a pressure vessel anyway~ Why operate it at such high pressure? High pressure is detrimental to energy consumption and distillation~~
I would like to ask the moderator: if energy consumption is not taken into account and only production volume matters, as long as the purity is fine, is it true that the more air fed into the tower, the better – as long as overpressure is avoided?
Ignoring energy consumption and yield – that’s the principle here~~
Simply put, the more air intake there is, the higher the output will be. After all, there are many raw materials and many products. However, the load on the equipment itself and the load on the pipelines are related to each other. Try to follow the maximum load determined in the design
Air separation systems require material balance, heat balance, and gas-liquid balance – these factors also need to be taken into consideration; simply increasing the gas flow rate does not necessarily lead to an increase in production.
There also needs to be sufficient cooling capacity, and it depends on whether the distillation tower can handle such a high load
Definitely not; whatever is consumed must be expelled as well. If the performance of the expander does not meet the requirements, it can lead to runaway operation
Pressure refers to the internal pressure exerted on a container; it is a mechanical constraint, not a process constraint.