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Question 36

Titanium should not be used in known hydriding services such as _____ or ______.

    Correct Answer: B

    Titanium should not be used in hydriding services such as amine and sour water because it is known to suffer damage in these environments, especially at elevated temperatures. Specifically, in sour water and amine units, titanium can undergo hydriding, which leads to embrittlement and subsequent failure of the material.

Discussion
ahmadmmOption: B

Titanium has mainly been used in heat exchangers and air coolers, primarily to take advantage of the corrosion resistance of titanium tubes in these services. Damage has occurred primarily in SWSs and amine units in the overhead condensers or air coolers and other heat exchanger tubes, as well as some piping and other titanium equipment operating above about 165 °F (75 °C).