【Daily Question 2019】Hydrogen production and hydrogenation section – Question No. 076
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【Daily Question 2019】Hydrogen production and hydrogenation section – Question No. 076: What are the reasons for overheating in the reactor bed? ① Failure in controlling the reactor inlet temperature; ② Local blockages in the catalyst bed, leading to channeling; ③ Large fluctuations in the amount of cold hydrogen; ④ Improper handling of the shutdown of the recycle compressor; ⑤ The crude oil being too heavy, preventing the reaction heat from being balanced. (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
1. Failure in controlling the reactor inlet temperature. 2. Local blockages in the catalyst bed leading to channeling flow. 3. Large fluctuations in the amount of cold hydrogen supplied. 4. Improper handling of the shutdown of the recycle compressor. 5. The high density of the crude oil preventing the reaction heat from being balanced
1. Failure in controlling the reactor inlet temperature??2. Local blockages in the catalyst bed leading to channeling??3. Large fluctuations in the amount of cold hydrogen??4. Improper handling of the shutdown of the recycle compressor??5. The crude oil being too heavy, preventing the reaction heat from being balanced
1. Failure in controlling the reactor inlet temperature??2. Local blockages in the catalyst bed leading to channeling??3. Large fluctuations in the amount of cold hydrogen??4. Improper handling of the shutdown of the recycle compressor??5. The crude oil being too heavy, preventing the reaction heat from being balanced
1. Failure in controlling the reactor inlet temperature??2. Local blockages in the catalyst bed leading to channeling??3. Large fluctuations in the amount of cold hydrogen??4. Improper handling of the shutdown of the recycle compressor??5. The crude oil being too heavy, preventing the reaction heat from being balanced
The reasons for overheating of the reactor bed include: failure in the control of the outlet temperature of the recycle hydrogen heater； Weight of crude oil ； Specific gravity ； Feed pump failure ； Gouging caused by local bed blockage ； Large variations in the amount of cold hydrogen and the shutdown of the recycle hydrogen compressor, etc.
1. Failure in controlling the reactor inlet temperature??2. Local blockages in the catalyst bed leading to channeling??3. Large fluctuations in the amount of cold hydrogen??4. Improper handling of the shutdown of the recycle compressor??5. The crude oil being too heavy, preventing the reaction heat from being balanced
1. Failure in controlling the reactor inlet temperature. 2. Local blockages in the catalyst bed leading to channeling flow. 3. Large fluctuations in the amount of cold hydrogen supplied. 4. Improper handling of the shutdown of the recycle compressor. 5. The high density of the crude oil preventing the reaction heat from being balanced
Too rapid sulfur injection during pre-vulcanization, excessively high temperature at the furnace outlet, low space velocity, low processing capacity, and extremely high sulfur content in the raw materials
High hydrogen level, no condensate drainage, high steam temperature