Static clumping issue in Univation’s gas-phase polyethylene process

2022-05-29View Original

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During the process of starting up in a cold state, our equipment stopped several times due to static clumping and had to revert to a standby mode. Analysis shows that the impurity levels in all raw materials are within acceptable limits, and the system purification process also meets the requirements; production can proceed normally even before the system is cooled down. However, as the system reaches cold temperatures, static electricity begins to fluctuate, and almost instantly the static electricity level reaches its maximum value, leading to clumping. Do anyone have any good ideas regarding the issue of electrostatic caking in fluidized bed reactors? How can risks be minimized? I also earnestly request advice from my colleagues.

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Static clumping issue in Univation’s gas-phase polyethylene process

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