Ob qhov kub-kub oxidation thiab qis-kub oxidation muaj qhov kub-kub corrosion ntawm acetic acid thiab bromide. Nyob rau hauv nruab nrab nrog kub siab tshaj 135 degree, 316L stainless hlau yuav muaj pitting corrosion tom qab kaum teev. Yog li ntawd, cov qauv tsim tshwj xeeb tau teev tseg tias titanium yuav tsum tau siv siab tshaj 135 degree C. Beijing Petrochemical cog tau qhia txog cov khoom siv titanium tiav, suav nrog 16 oxidation reactors, hnyav lub cev qhuav dej ntauwd, rhaub, condenser thiab reboiler. Nanjing Yangzi Petrochemical Company tau qhia txog 450000 tons ntawm cov khoom siv terephthalic acid, 56 cov khoom siv titanium thiab ntau cov titanium pipeline li qub. Lub oxidation reactor txawv teb chaws muaj qhov siab ntawm 32m, ib txoj kab uas hla ntawm 4m, qis txoj kab uas hla ntawm 5 thiab 3M, lub ntim ntawm 505m thiab ib tug luj ntawm 175t. Cov nyhuv ntawm kev siv cov khoom siv titanium yog qhov zoo heev, thiab lub zeem muag ntawm kev nyiam thiab kev siv yog dav.
Titanium tshav kub exchanger, condenser thiab lwm yam auxiliary cov cuab yeej tau ntse siv nyob rau hauv petrochemical qhauj rau ntau tshaj 20 xyoo. Ntawm cov ntaub ntawv titanium, feem ntau siv cov ntshiab titanium (TA2 yog qhov dav siv tshaj) thiab Ti-6Al-4V titanium alloy. Thaum hydrogen absorption thiab hydrogen embrittlement yuav tshwm sim, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv ntawm weld corrosion thiab hydrogen absorption, tsawg hlau yuav tsum tau. Phenol yog ib qho tseem ceeb raw khoom hauv kev lag luam petrochemical. Cov txheej txheem tshiab rau kev npaj phenol thiab acetone los ntawm propylene thiab benzene, cumene thiab cumene peroxide. Cov khoom siv titanium tau siv nyob txawv teb chaws rau ntau tshaj kaum xyoo, tab sis cov cuab yeej no tseem tab tom tsim hauv Suav teb. Cov txheej txheem qub ntawm cov khoom siv titanium siv benzene sulfonated alkali tov los tsim phenol. Tuam Tshoj tau txais titanium neutralization reactor, titanium coil txias thiab Ionic Titanium Nitride stirring ncej tes tsho, thiab cov nyhuv yog zoo heev. Urea yog cov khoom siv zoo tshaj plaws thiab cov khoom siv petrochemical. Txij li thaum thawj titanium lined urea synthesis ntauwd tau muab tso rau hauv kev ua haujlwm hauv xyoo 1963, ze li ntawm 10000 cov khoom siv tau ua haujlwm thoob plaws ntiaj teb. Kev xyaum qhia tau hais tias tsis muaj qhov pom tseeb corrosion tshwm sim hauv titanium lined synthesis ntauwd. Kev hloov pauv corrosion ntawm 316L stainless hlau yog 4, 1-4 thiab 5mm / A. Yog li ntawd, titanium muaj txiaj ntsig zoo dua kev lag luam ntau dua li cov hlau tsis muaj steel. Ntxiv nrog rau cov titanium lined urea synthesis ntauwd, Tuam Tshoj kuj tau siv CO 2 stripper, kub exchanger, tov khoom thiab twj tso kua mis valve txij li thaum xyoo 1970s.
