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Corrosion inhibitors and polymerization inhibitors for styrene plants

2009-02-17View Original

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I work in the process technology area of styrene plants. As those in the industry know, polymerization inhibitors such as DNBP and TBC need to be added during the distillation stage of styrene production. However, after several years of operating such plants, it becomes clear that polymerization inhibitors are also necessary in the dehydration unit; otherwise, polymerization occurs in the air cooling systems, stripping towers, and exhaust gas compressors. My plant is planning to add polymerization inhibitors to the dehydration section – are there any colleagues who are already using them? We can come out and discuss it. . . Colleagues may also be aware that over time, corrosion can occur in the styrene distillation unit; has anyone added corrosion inhibitors to the distillation section? I hope everyone will actively participate in the discussions; you can also get in touch via direct message
Reply #22009-02-17
Some units add a corrosion inhibitor to the vapor phase of the crude styrene column.
Reply #32009-02-18
Yes, Fushun and Dalian seem to have been added in this location
Reply #42009-02-18
Hainan has also joined; I’m not very familiar with the details!
Reply #52009-04-01
You can contact me; I work in the field of application of process additives. There are currently many application cases for styrene. I wonder which factory you work for?
Reply #62009-05-04
Dehydrogenation units are installed at the outlet of the triple heat exchanger and at the inlet of the compressor!

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