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tuo liu zhuang zhi pin an ye xi tong de fu shi yu kong zhi
Author(s): 
Pages: 80-82+19
Year: Issue:  2
Journal: Qilu Petrochemical Technology

Keyword:  贫胺液工艺管线应力腐蚀破裂应力腐蚀裂纹换热器冷却器脱硫装置热影响区冷换设备焊缝;
Abstract: <正> 我厂气液脱硫装置设计年处理催化干气和焦化干气15万吨,液态烃15万吨,采用一乙醇胺作酸性气体的吸收剂。该装置溶剂再生后的贫胺液系统共有八台冷换设备(四台贫液/富液换热器、四台贫液冷却器),工艺管线近千米,全部采用碳钢制造。近几年来,几乎所有的冷热贫液换热器和工艺管线的焊缝、熔合线及热影响区均发生点腐蚀穿孔和应力腐蚀破裂。新换的工艺管线一般使用
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