停车回收的EG直接应用于酯化开车的探讨

Discussion of direct application of EG recovered in stop running to esterification start-up

介绍了聚酯装置停车所回收的EG在酯化开车中的直接应用。通过准确把握酯化釜的升温节奏,PTA浆料的注入时机,控制好酯化工艺条件,避免酯化冷凝系统过载,完成了开车第一批合格低聚物的制备,从而降低了开车成本。

The direct application of recovered EG generated in polymerization plant stop running to esterification start-up was introduced. By correct grasping the esterification autoclave temperature increasing rhythm and the feeding opportunity of PTA slurry, better controlling of the esterification technology conditions, avoiding the esterification condensation system overload, the preparation of the first batch of qualified oligomer polymer start-up was finished, the start-up cost was reduced.