How can the problem of exhaust gas absorption be solved? Please help come up with a feasible solution.
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Before each maintenance session, my facility carries out nitrogen purging of the reactor; the exhaust gas from this purging process is discharged from the top of a distillation tower. The acidic gases in this exhaust gas are removed using an exhaust gas tower and a membrane absorber (with a conventional solvent being used for absorption), while most of the nitrogen is released into the atmosphere at high altitudes. However, smoking and acid spraying often occur during emissions at high altitudes, and I can’t think of a suitable way to eliminate this problem. The smoking and acid spraying are suspected to be caused by incomplete absorption of acidic gases ； As long as the problems of smoking and acid spraying can be eliminated, anything that allows for the complete absorption of acidic gases or the installation of an absorption device at the point of emission at high altitudes would work!
It is possible to consider installing a simple absorption device before the high-altitude emission point, to absorb the substance before releasing it.
A regular PP packed absorption tower can be selected through calculation; it requires low investment and delivers good results
If there is a incineration system, it can be discharged to the flare system for incineration.
Based on what was said on the second floor, a simple absorption device (using water) should be installed before discharging substances at higher altitudes; after absorption, the substances can be discharged. The absorbed liquid can be reused if possible, and otherwise it should be sent for treatment as part of waste management. Please point out any mistakes in what I said
Reply to 3# sisism: Thanks, it’s a bit enlightening.
Reply to 4#: Being overly cautious, sh – this method isn’t very feasible. Because the medium is not easy to ignite. But I still need to thank you. .
If our company doesn’t have a torch, it’s possible to ignite the substance, but it’s better not to do so as the cost is too high. The method mentioned earlier of using water to absorb it is also feasible; it depends mainly on its solubility in water – if it’s too low, its effectiveness will be limited.
This post was last edited and replied to by ghyjy2009 on 2011-5-27 at 14:28. Reply 1#: By controlling to slow down the exhaust velocity and reduce the exhaust pressure, the absorption time can be increased appropriately; this should result in less turbulence of the gas inside the absorption tower. If necessary, an additional absorption tower can be added!
Reply to 9# ghyjy2009: By taking everyone’s opinions into account and considering the company’s situation, it seems that adding another exhaust gas absorption tower would be a practical solution. Hehe
Let’s do the math – adding a PP exhaust gas absorption tower should work!