Polyethylene T2 system
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How is the polyethylene T2 system purged with mineral oil?
The question is too general. In fact, it’s not much different from other purging processes; all that needs to be considered is the properties of T2. Pay attention to the details. In principle, the viscosity of mineral oil should be as low as possible to facilitate turbulence in the aluminum alkyl system. Before cleaning the line, it should be purged with nitrogen. When tape needs to be applied, it too must be cleaned first and then flushed with nitrogen. Of course, it’s important to remember that mineral oil must not be contaminated by water
Could the senior please explain what unit T2 in the polyethylene plant is used for?
T2 is a catalyst for the polymerization of ethylene, but it is a highly reactive substance with extremely high activity; it can catch fire in the presence of air and explode in the presence of water. Therefore, strict adherence to the operating procedures is necessary when using it.
It is a catalyst, but in terms of the reaction mechanism, it should be a chain initiator