聚酯装置PTA输送系统改造

Reformation of PTA Conveying System of Polyester Plant

介绍了精对苯二甲酸(PTA)输送系统的改造,直接利用PTA装置产生的剩余尾气来输送PTA,取代压缩机压缩氮气输送PTA。同时,两种输送方式可以相互切换,并且还可以用尾气完全取代氮气。

The reformation of purified terephthalic acid（ PTA） conveying system was introduced. The tail gas from PTA plant was directly utilized to convey PTA,instead of compressing nitrogen gas with compressor. Meanwhile,these two conveying methods can shifted alternatively and the tail gas can replace the nitrogen gas completely.