Can the system be purged with nitrogen using a high-pressure low-density polyethylene single-machine setup?
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The company has newly built a high-pressure low-density polyethylene plant, which is currently in the commissioning phase and is facing challenges. When using a nitrogen compressor for purging the high-pressure system, the low flow rate and low pressure result in slow efficiency, with purging taking 3 months to complete. On the other hand, if a high-pressure compressor is used for purging, the higher flow rate and pressure enable the process to be completed more than twice as fast. The representative of the compressor manufacturer (Buka) does not allow the use of a single-unit compressor for purging the high-pressure system. Are there any colleagues in the polyethylene industry among you? How do you carry out purging when starting up your equipment? Please feel free to give your advice; thank you!
I would also appreciate guidance from those experienced in this field: handshake
I would also appreciate advice from those who work in this industry!
We use vehicles to purge the high-cycle system; we never use ethylene for purging, and the entire installation is purged through segmented isolation using nitrogen