聚酯装置的清洁化生产  

Clean Production of Polyester Plant

作　　者：虞小三[1] 沈伟[1] 李建波 Yu Xiaosan;Shen Wei;Li Jianbo(Polyester Division,SINOEPC Shanghai Petrochemical Co.,Ltd.,Shanghai 200540)

机构地区：[1]中国石化上海石油化工股份有限公司涤纶部,上海200540

出　　处：《石油化工技术与经济》2020年第3期37-41,共5页Technology & Economics in Petrochemicals

摘　　要：通过对酯化废水汽提,同时采用多效精馏工艺,将聚酯装置废水中的乙醛和酯化分离塔T-21直接放空的乙醛进行回收,使乙醛循环再利用,降低了废水中的化学耗氧量;收集各无序排放点的异味气体并送至热媒炉焚烧,使装置完全达到清洁生产的要求。By stripping the esterification wastewater and using a multi-effect rectification process,the acetaldehyde in the wastewater of the polyester plant and the acetaldehyde that is directly vented from the esterification separation tower T-21 are recovered to recycle and reuse the acetaldehyde and reduce the COD in wastewater.In addition,the odor gas at each random discharge point is collected and sent to the heat medium furnace for incineration,so that the device fully meets the requirements of clean production.

关 键 词：聚酯 酯化废水处理 乙醛回收 异味气体收集 焚烧 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]