【Q&A Question 237】2018.08.31
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This post was last edited by Internet Invisible Man on 2018-8-31 08:20. [Q&A Question 236] August 30, 2018: Briefly describe several abnormal operating conditions in the distillation system of a hydrogenation unit flooding ； Blockages and dirt ； Excessive mist entrainment ； Leakage ； Foam formation ； Fluctuations in operating pressure ； Excessive pressure drop ； There is water inside the tower. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
flooding； Blockages and dirt ； Excessive mist entrainment ； Leakage ； Foam formation ； Fluctuations in operating pressure ； Excessive pressure drop ； There is water inside the tower.
Foam entrainment, flooding tower, liquid leakage
flooding； Blockages and dirt ； Excessive mist entrainment ； Leakage ； Foam formation ； Fluctuations in operating pressure ； Excessive pressure drop ； Water in the tower
1. Water carried back from the tower top causes fluctuations in pressure and temperature within the distillation system. 2. High volume of gas vapor, resulting in overpressure in the gas column. 3. Low temperature at the bottom of the distillation column, causing the products obtained there to fail quality standards. 4. Unstable pressure and temperature in the distillation column; water carried back by the reflux stream leads to corrosion issues with the products at the bottom of the column, preventing them from meeting quality requirements. 5. Unstable and high temperature at the top of the distillation column, resulting in the dry point of the naphtha not meeting specified standards. 6. Excessive light components or water content in the material at the bottom of the column, leading to pump cavitation
flooding； Blockages and dirt ； Excessive mist entrainment ； Leakage ； Foam formation ； Fluctuations in operating pressure ； Excessive pressure drop ； There is water inside the tower.
Foam entrainment, tower flooding, liquid leakage, etc
Liquid flooding, clogging, excessive mist entrainment, liquid leakage, pressure fluctuations, excessive pressure drop, water entrainment in the tower. Wait
flooding； Blockages and dirt ； Excessive mist entrainment ； Leakage ； Foam formation ； Fluctuations in operating pressure ； Excessive pressure drop ； There is water inside the tower.