石油化工腐蝕與防護(hù)第29卷是減緩設(shè)備腐蝕的前提,嚴(yán)格控制各項(xiàng)原油指標(biāo),4)改善循環(huán)水水質(zhì):通過增加過濾網(wǎng)及時(shí)不要超過裝置設(shè)防值。同時(shí)應(yīng)加強(qiáng)原油的調(diào)合,清理循環(huán)水涼水池中的泥砂等雜物,加強(qiáng)循環(huán)水減小原油品種和性質(zhì)頻繁波動(dòng)對(duì)裝置造成的的藥劑管理,改善循環(huán)水的品質(zhì);增加犧牲陽(yáng)極影響。選擇更好的防腐蝕涂料,并對(duì)防腐蝕施工的質(zhì)量(2)材質(zhì)升級(jí):四蒸餾裝置雖為新建裝置,但進(jìn)行有效的監(jiān)督。由于設(shè)計(jì)時(shí)未考慮高溫環(huán)烷酸腐蝕,致使部分高溫部位腐蝕嚴(yán)重。單純的高溫硫腐蝕采用Cr5Mo參考文獻(xiàn)和Cr9Mo材料即可,如果同時(shí)存在較重的環(huán)烷酸腐蝕,則要選用316L和31兀L材料[1]高延敏,陳家堅(jiān),雷良才環(huán)烷酸腐蝕研究現(xiàn)狀和防護(hù)對(duì)策(3)加強(qiáng)“一脫三注”工藝防腐蝕措施:優(yōu)化[].石油化工腐蝕與防護(hù),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(hù),199,16(1):15腐蝕的關(guān)鍵。要加強(qiáng)電脫鹽的運(yùn)行管理和優(yōu)化[3]劉小輝加工高硫原油的腐蝕與防護(hù)對(duì)策[J]石油化工設(shè)篩選和應(yīng)用適應(yīng)性強(qiáng)的破乳劑和脫鹽劑;應(yīng)及時(shí)備技術(shù),2005,26(5):4952調(diào)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[J·石油規(guī)劃設(shè)計(jì),2005子在控制指標(biāo)之內(nèi),此外用有機(jī)胺代替氨水注入16(3):145.揮發(fā)線內(nèi),可減少由于銨鹽結(jié)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 GuoqingSINOPEC Beijing Yanshan Petrochemical Co., Ltd., Beijing 102503)Abstract: 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 processcorrosion prevention concluded that the corrosion was mainly caused by inadequate original design, selection of lower materialsequipment and piping in high-temperature gervices, 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(guó)內(nèi)外動(dòng)態(tài)河南煤化煤制乙二醇產(chǎn)出合格產(chǎn)品二醇裝置。新鄉(xiāng)煤制乙二醇項(xiàng)目采用世界首創(chuàng)生產(chǎn)技術(shù),012年3月29日,河南煤化集團(tuán)和通遼金煤化工合擁有自主知識(shí)產(chǎn)權(quán),總投資26×10°RMBY,是河南省“十資建設(shè)的河南新鄉(xiāng)永金化工年產(chǎn)200kt煤制乙二醇裝置五”規(guī)劃建設(shè)的5套年產(chǎn)200kt煤制乙二醇項(xiàng)目之一。成功產(chǎn)出合格產(chǎn)品,這是河南省首套打通全流程的煤制乙(寇岱清摘自中國(guó)石油和化工網(wǎng)中國(guó)煤化工CNMHG