综述了使用聚氯乙烯尾气变压吸附装置的必要性、原理、工艺。
The necessity, principle and process of pressure swing adsorption units of PVC tail gas were introduced.
变压吸附装置程序控制阀门的内漏，轻则导致产品不合格，重则吸附剂失活或装置爆炸。
The leak-inside in the program-controlled valve of the PSA system can lead to the unreliability of the product, and can make the sorbent reduce its activity evenly or make the system explode.
在四塔变压吸附装置上进行了变压吸附过程试验，在吸附试验过程中应用PLC对全过程进行设计和控制；
The experiment of PSA process was carried out on four columns. The system is designed and controlled by PLC on the pressure swing adsorption processes.
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