Roj, "ntshav" ntawm kev lag luam niaj hnub, txhawb kev loj hlob ntawm tib lub sijhawm, tab sis kuj coj cov kev xav tau siab rau cov khoom siv kho kom zoo. Nyob rau hauv cov txheej txheem refining, vim muaj ntau haiv neeg thiab corrosiveness ntawm raw cov ntaub ntawv, cov khoom xaiv ntawm cov cuab yeej ua ib qho tseem ceeb heev. Titanium thiab titanium alloys, vim tias lawv cov kev tiv thaiv corrosion zoo heev, tau maj mam tuav txoj haujlwm tseem ceeb hauv kev lag luam roj refining.
Daim ntawv thov keeb kwm ntawm titanium hauv kev ua kom zoo thiab tshuaj lom neeg kev lag luam tuaj yeem taug qab mus rau cov cua txias thaum ntxov. Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, daim ntawv thov ntau yam ntawm titanium thiab nws cov alloys txuas ntxiv nthuav dav, thiab tam sim no tau siv dav hauv cov cuab yeej tseem ceeb xws li hloov tshav kub, condensation thiab txias. Cov khoom siv no raug kub siab, siab siab thiab corrosive media thaum lub sijhawm ua kom zoo, thiab kev ua haujlwm zoo ntawm titanium thiab titanium alloys yog qhov kev xaiv zoo tshaj plaws kom tau raws li cov kev cov nyom no.
Cov khoom siv titanium tau siv rau hauv kev ua kom zoo thiab tshuaj lom neeg kev lag luam hauv txawv teb chaws tau ze li 40 xyoo. Vim tias tsis muaj cov peev txheej roj, Nyiv feem ntau tso siab rau kev xa khoom ntawm cov roj sulfur siab, yog li nws tau txais kev nplua nuj nyob hauv kev tiv thaiv corrosion. Lawv tau txais cov khoom siv titanium alloy los daws qhov teeb meem ntawm H2S-HCL-H2O ib puag ncig corrosion, thiab ua tiav cov txiaj ntsig zoo kawg. Cov tebchaws nyob sab Europe thiab Asmeskas kuj tau pib siv titanium cov khoom siv hluav taws xob hauv cov chaw ua kom zoo thaum ntxov li xyoo 1960 kom tau raws li cov kev cov nyom ntawm ntau yam kev tshaj tawm corrosive. Hauv Suav teb, txawm hais tias kev lag luam petrochemical tau ua haujlwm tseem ceeb, cov khoom siv titanium siv hauv kev ua kom zoo thiab tshuaj lom neeg kev lag luam tseem me me. Txawm li cas los xij, nrog txoj kev loj hlob sai ntawm kev lag luam thiab kev loj hlob sai ntawm kev thov rau cov roj, tshwj xeeb tshaj yog kev nce siab ntawm cov roj ntsha sulfur crude ntshuam hauv Middle East, Tuam Tshoj tau muab cov kev xav tau siab dua rau kev hloov pauv thiab kev kho dua tshiab ntawm cov khoom siv refining. Titanium thiab titanium alloys yuav dhau los ua cov ntaub ntawv tseem ceeb hauv kev lag luam roj refining yav tom ntej vim lawv zoo heev corrosion kuj.
