Materials for anthracene oil hydrogenation units
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I have no experience with anthracene oil hydrogenation units. There are several towers in use now, and I would like to know what materials are used for the tower structures themselves and for the internal components of these towers. The towers in question are: 1. Feed oil distillation tower, 2. Hot light ends stabilization tower, 3. Cold light ends stabilization tower, 4. Distillation tower, 5. Naphtha stabilization tower, 6. LPG stabilization tower. I’m in a hurry; please reply as soon as possible. Thank you!
Stainless steel is a bit more expensive. Q345R can be considered. To prevent dew point corrosion caused by the condensation of H2S in the medium, the materials need to be treated to resist H2S dew point corrosion
Alternatively, the tower body can be made of Q345R+316 composite plate material, with 3 mm of the 316 material being sufficient. The tower internals are made of 316 material. In this way, the cost is relatively lower compared to all-stainless steel
Thank you for your reply. May I ask if 304 can be used for the stainless steel part? Do you have any practical experience with 316?
Our company has built lined towers and has practical experience in this area. Using 316 gaskets is a more economical choice. For 304, there should be no major issues, but since customers often have doubts, they generally prefer a higher grade as it provides greater safety in use
Sea friends, let’s share some information on naphtha hydrogenation!