Through the TEG cleaning carried on polyester plant before starting up,the operation steps and matters needing attention of TEG cleaning after polyester plant stop working were found out.

• 通过对聚酯装置开车前进行三甘醇清洗,摸索出装置在停车后对反应釜进行三甘醇清洗的操作步骤及注意事项,提出了装置的改进方向。