石油化工腐蝕與防護第29卷是減緩設備腐蝕的前提,嚴格控制各項原油指標,4)改善循環(huán)水水質:通過增加過濾網及時不要超過裝置設防值。同時應加強原油的調合,清理循環(huán)水涼水池中的泥砂等雜物,加強循環(huán)水減小原油品種和性質頻繁波動對裝置造成的的藥劑管理,改善循環(huán)水的品質;增加犧牲陽極影響。選擇更好的防腐蝕涂料,并對防腐蝕施工的質量(2)材質升級:四蒸餾裝置雖為新建裝置,但進行有效的監(jiān)督。由于設計時未考慮高溫環(huán)烷酸腐蝕,致使部分高溫部位腐蝕嚴重。單純的高溫硫腐蝕采用C5Mo參考文獻和CMo材料即可,如果同時存在較重的環(huán)烷酸腐蝕,則要選用316L和317L材料[1]高延敏,陳家堅,雷良才環(huán)烷酸腐蝕研究現(xiàn)狀和防護對策(3)加強“一脫三注”工藝防腐蝕措施:優(yōu)化[].石油化工腐蝕與防護,2000,17(2):3843工藝防腐蝕措施是解決四蒸餾裝置低溫輕油部位[2]敬和民,鄭玉貴,姚志銘,等.環(huán)烷酸腐蝕及其控制[冂].石油化工腐蝕與防護,1999,16(1):1-5腐蝕的關鍵。要加強電脫鹽的運行管理和優(yōu)化,[3]劉小輝加工高硫原油的腐蝕與防護對策[]石油化工設篩選和應用適應性強的破乳劑和脫鹽劑;應及時備技術,2005,26(5):4952調節(jié)塔頂注劑,確保塔頂酸性水中鐵離子和氯離[4]錢伯章含硫原油加工工藝研究[冂·石油規(guī)劃設計,2065子在控制指標之內,此外用有機胺代替氨水注入16(3):1-5揮發(fā)線內,可減少由于銨鹽結晶引起的垢下腐蝕。(編輯寇岱清)Analysis of Corrosion Causes of No. 4 Crude Distillation Unit and CountermeasuresLiu Fugiao, Wang GuogingSINOPEC Beying Yanshan Petrochemical Co, Ltd, Beijing 102503)bstract: The equipment corrosions in No. 4 crude distillation unit in Sinopec Beijing Yanshan Petrochemical Company areintroduced. The corrosions mainly occurred in the heat exchangers, water coolers and air coolers in the atmospheric toweroverhead and vacuum tower overhead. The investigation and analysis of the typical corrosions, crude oil properties and processosion prevention concluded that the corrosion was mainly caused by inadequate original design, selection of lower materials forequipment and piping in high -temperature services, incomplete corrosion protection measures for water coolers, insufficientcorrosion protection management, improper control of crude oils, poor process corrosion prevention performance and poor qualityof cooling water etc. Corresponding corrosion protection measures were recommended to solve these problems such as control ofcrude oil properties, upgrading of materials for equipment and piping, improvement of process corrosion prevention, improvementof cooling water quality and application of effective corrosion protection measures for water coolersKeywords: corrosion, equipment, distillation, analysis國內外動態(tài)河南煤化煤制乙二醇產出合格產品二醇裝置。新鄉(xiāng)煤制乙二醇項目采用世界首創(chuàng)生產技術,012年3月29日河南煤化集團和通遼金煤化工合擁有自主知識產權總投資26×10°RMB￥,是河南省“十資建設的河南新鄉(xiāng)永金化工年產200k煤制乙二醇裝置五”規(guī)劃建設的5套年產200kt煤制乙二醇項目之成功產出合格產品,這是河南省首套打通全流程的煤制乙寇岱清摘自中國石油和化工網)