高温高硫油气管线的腐蚀分析及对策

(,200540):,,,,,,,1Cr5Mo:;;;:TE986:B:10052748X(2006)1120585203CORROSIONANDCOUNTERMEASURESOFHIGH2TEMPERATUREANDHIGH2SULFUROILVAPORPIPELINESCHENJie2xian(Refinery&ChemistryDepartmentofShanghaiPetrochemicalCo.Ltd.,Shanghai200540,China)Abstract:TheteesandlateralsofoutletoilvaporpipelinesofcokedruminShanghaiPetrochemicalCompanysufferedfromsevereerosion.Analysesindicatedthattheerosioncorrosionresultedfromthecombinedeffectofturbulenterosionandhigh2temperaturesulfurcorrosion.Itissuggestedthatthematerialsshouldbeupgradedto1Cr5Mosteeltosolvethisproblem.Keywords:Delayedcoker;Oilvaporpipeline;Sulfurcorrosion;Erosion1,,20001,80%+20%,1000kt/a[1],,,,,,1:0.220.6MPa,20#,()3.23.5%,425450,530mm18mm,:2006201227;:20062032061%%3.181.539.692.654.8383.120.364.242,,,,,1mm/a,22222mm/a5852711200611CORROSION&PROTECTIONVol.27No.11November20062(mm)P1034/413.612.911.7P1034/513.412.912.2P1035/413.812.512.2P1035/514.113.112.13(1)2002126,2#17m530mm18mm/325mm12mm,,1.82.6mm10mm,,1#2#,1.5212mm,(2)200351017m,P1036,1.82.5mm,P1079P1036,(3)P1034/445,530mm18mm,20021297.17.8mm420044,94.1,33,mm/,mm34216.3,7.1,6.2,6.57.7/6.434238,9.4,6.5,7.47.8/6.635215.6,6.89.1/7.035235.5,5.8,6.67.4/636215.5,5.6,5.8,6.16.18/5.5,,P1034/P10357mm(18mm):P1034/P1035(426mm10mm)(,),,40%,1mm(),20031460mm10mm,4.2,4.3,,5(1),20#440,0.20.6MPa,2.76%,425450,[2](2),,,350400,,,430[3],,,,(3)2176%,2428h,470490,,P1034P1035440500,,,,20#(4)685:,,,,(5),,,;,,(6),,6,,:4404902.3%3.2%,,,,;2428h,;100,,,,,,SH/T3098-1999,1Cr5Mo,,,,30%,:[1].100/[R].,1988.[2],.[M].:,2000.[3].[Z].,2001.(584)110:,,,,(58.6km),:[1].()[M].:,2001.[2].()[M].:,1991.[3].[J].,2002,23(10):2325.785: