The problem of pipeline blockage in the polymerization reactor of SBS units
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In our SBS plant, the butadiene feeding pipeline in the polymerization reactor is designed for feeding at the middle section. Due to issues with the original design, solvent flushing sometimes doesn’t work effectively. It’s not possible to make any modifications at the moment; it’s likely that the glue gets into the system and causes blockages at the feeding end. Every time this happens, we have to disassemble the component and then burn it off, using gas cutting as well. Now this problem has occurred again. I was thinking of using toluene or ethylbenzene for dissolution; THF was also considered, but our upper management refuses to agree, fearing that it might contaminate the dissolution system and lead to greater losses. Since I don’t have sufficient reasons either, I don’t dare to say anything further. But I think disassembling the component every time it gets blocked isn’t a good solution. Are there any experienced experts who can give me some good advice? QQ845623205. I have no idea what to do; they’re going to cut the pipe tomorrow. It’s extremely urgent!
Are you from Ningbo Keyuan or the one in Zhenhai? Your top leader is an expert in this field. . . How is it possible you still don’t know?
If it’s glue causing the blockage, then toluene, ethylbenzene, or even THF won’t be able to dissolve it, right?
Waiting for the results. (8 bytes more needed: Q. . ）
Using a high-pressure water gun – actually, burning it is the best solution
You know him, right? You’re quite familiar with him. Add me to chat: 845623205
It was still due to improper operation; the procedures were not followed strictly. Aggregated fluctuations, instability; unstable specifications of raw materials used, and poor management practices. The design is also unreasonable. Just hearing what the design institute is capable of doesn’t give one an understanding of the actual details of the manufacturing process. If it gets blocked, switch to a backup pipeline. For blocked pipelines, there’s no other good way except to lift them with a crane and burn them.
The addition point is the mixing dead zone; after adding butadiene, flushing is carried out. By controlling the flushing flow rate and the total amount of fluid used for flushing, it might be possible to flush once more after the reaction is complete