What material is used for the TBC pipeline of butadiene inhibitor?
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Dear Haiyou teachers, our tank farm has 2 butadiene storage tanks. To prevent the self-polymerization of butadiene, the supervisory authorities now require the installation of equipment for adding butadiene polymerization inhibitors (TBC). The pipes and pipe fittings at the external connections provided by the manufacturers of this inhibitor equipment are made of stainless steel, while our main pipes and drainage pipes are made of carbon steel. What material would be suitable for the pipes that connect the inhibitor equipment to our main pipes? Thank you to all the teachers!
Both carbon steel and stainless steel are acceptable; it is advisable to perform chemical cleaning on carbon steel pipes before putting them into use
Hello! When selecting the pipe material for connecting the butadiene storage tank and the polymerization inhibitor equipment, factors such as chemical compatibility, corrosion resistance, and cost need to be taken into consideration. Since the inhibitor (TBC) may be somewhat corrosive, and you mentioned that the interfaces and piping fittings for the inhibitor handling equipment are made of stainless steel, this indicates that stainless steel has good corrosion resistance against this inhibitor. Therefore, it is recommended that the connecting pipes also be made of stainless steel. Although stainless steel pipes have a higher cost, they offer better chemical resistance and durability, reducing the need for maintenance and replacement frequency, which may make them more economical in the long run. Furthermore, using pipes made of the same material as the inhibitor equipment can prevent electrochemical corrosion issues caused by different materials. I hope these suggestions are helpful to you! If you have any other questions, feel free to ask. .
The amount of inhibitor added is very small, and the systems used for preparing the inhibitor (tanks, pumps) are generally made of stainless steel; therefore, the system before where butadiene is added should also be constructed from stainless steel.