PSA adsorption time issue in Sichuan Tianyi
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It is a hydrogen production process designed with a capacity of 40,000 standard cubic meters, using the light hydrocarbons steam method; the process package comes from Desiniub. For PSA, equipment from Sichuan Tianyi is used, and the 10-2-5 process is employed. I would like to ask the experts here what determines the adsorption time. What do t1----t9 represent respectively?
PSA is a process for producing the desired gas by adsorbing and desorbing gases at different pressures. The adsorption time is determined based on the saturation of the adsorbent with the gas. t1-t9 represent the times required for various adsorption and desorption operations, which include steps such as pressure increase, adsorption, pressure reduction, evacuation, and flushing. Different adsorption and desorption pressures and methods are chosen depending on the properties of the desired product gas
Wouldn’t it be easier to call the manufacturer and ask them?
To facilitate programming and the setting of procedures, manufacturers typically divide the adsorption time into several time intervals, which include times for valve switching, etc. The time required for each step such as adsorption, pressure reduction, and pressure increase is also composed of multiple time intervals; for specific details, refer to the manufacturer’s operating instructions.
Let’s use a simple and straightforward method: ask the manufacturer for a timing diagram or a table showing the valve states; it will detail which step or state corresponds to each time point, and then we can share it so everyone can study it together.:lol
It should follow a fixed procedure, with a specified adsorption or desorption time for each adsorption tower.
We are an ammonia synthesis plant; the PSA hydrogen production system is also provided by Sichuan Tianyi. Our process follows the 14-2-8/P sequence, with steps T1-T7. These steps represent adsorption, pressure equalization, forward discharge, reverse discharge, flushing, pressure increase, and final charging. You can refer to this for details
How long is one cycle of yours?
What is the gas processing capacity? What is the percentage composition of the gases? What kind of adsorbent is used in all of them? Learn* it, thank you