Applications of titanium in the petrochemical industry
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In petrochemical enterprises, titanium heat exchangers, condensers, and related auxiliary equipment have been successfully in use for over 20 years. The most commonly used titanium materials are industrial pure titanium (with TA2 being the most widely used), Ti-6Al-4V (when certain strength is required), and Ti-0.8Ni-0.3Mo (in the presence of gaps or in non-oxidizing media). When hydrogen absorption and hydrogen embrittlement are possible, especially in cases of corrosion and hydrogen absorption in the welded area, it is necessary to use low-iron content materials
It’s explained in a very systematic manner; here’s some additional information (based on theoretical knowledge found online): 1. Ti exhibits good resistance to H2S-induced stress corrosion cracking, as well as to corrosion caused by SO2 and CO2, making it suitable for use in environments subject to corrosion due to low-temperature light oils； 2. Resistant to ammonia corrosion, but corroded in liquid ammonia and chlorine environments ； 3. Crevice corrosion occurs in an NH4Cl environment at 93°C ； 4. Its use in a hydrochloric acid environment is related to temperature: at room temperature, it can be used in a hydrochloric acid environment with a concentration of less than 7.5% ； 60℃, can only be used in an hydrochloric acid environment of less than 3% ； 100℃, can only be used in an hydrochloric acid environment of less than 0.5% ； PH
2# skyduoduo will corrode in dry chlorine, while titanium can handle wet chlorine perfectly.
Could you talk about its applications in acetic acid, PTA, and MDI?