[Q&A Question 249] 2017.09.07
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【Q&A Question 249】September 7, 2017: Briefly describe the impact of the properties of the feed oil in hydrogenation units on the temperature rise in the reactor. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) The answers to the daily questions change, and today’s answers are shown in subsequent questions. For management purposes, if you need to view content from a few days ago, please access it through the summary post below. 2017 Q&A Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html (Source: Haichuan Chemical Industry Forum)
1) Crude oils containing sulfur and nitrogen with a high dry point result in a large temperature rise, requiring stringent refining conditions. 2) The presence of straight-run gasoline or inert oil in the feed oil results in a smaller temperature rise. 3) There is coker gasoline in the crude oil, resulting in an increased temperature rise. 4) It has a high bromine value and large temperature rise, but is easy to refine, with the saturation of olefins occurring in the upper part of the catalyst bed. 5) If the feed oil contains water, it will lower the reaction temperature.
The raw material has a high olefin content, causing the reactor temperature to rise； The proportion of fuel used for acceleration is high, resulting in an increase in reactor temperature ； The proportion of Changchai is high, resulting in a low temperature rise in the reactor ；
Impact: 1) Crude oils containing sulfur, nitrogen, and a high dry point result in a large temperature rise, requiring stringent refining conditions. 2) The presence of straight-run gasoline or inert oil in the feed oil results in a smaller temperature rise. 3) There is coker gasoline in the crude oil, resulting in an increased temperature rise. 4) It has a high bromine value and large temperature rise, but is easy to refine, with the saturation of olefins occurring in the upper part of the catalyst bed. 5) If the feed oil contains water, it will lower the reaction temperature.
The crude oil fractions become heavier, with high S and N contents, resulting in a large increase in reaction temperature.
1) Crude oils containing sulfur and nitrogen with a high dry point result in a large temperature rise, requiring stringent refining conditions. 2) The presence of straight-run gasoline or inert oil in the feed oil results in a smaller temperature rise. 3) There is coker gasoline in the crude oil, resulting in an increased temperature rise. 4) It has a high bromine value and large temperature rise, but is easy to refine, with the saturation of olefins occurring in the upper part of the catalyst bed. 5) If the feed oil contains water, it will lower the reaction temperature.
If the impurities or olefin content in the raw material is high, this reaction is exothermic; as a result, the reaction temperature rises. Conversely, if those levels are low, the temperature drops!
The higher the sulfur and nitrogen content in the feed oil, the more intense the reaction becomes, resulting in a higher temperature at the reactor outlet and a greater temperature rise. Conversely, it’s lower. If there are many magazines and other mixtures, the temperature might rise unexpectedly
The higher the sulfur and nitrogen content in the feed oil, the more intense the reaction becomes, resulting in a higher temperature at the reactor outlet and a greater temperature rise. Conversely, it’s lower. If there are many magazines and other mixtures, the temperature might rise unexpectedly
The higher the sulfur and nitrogen content in the feed oil, the more intense the reaction becomes, resulting in a higher temperature at the reactor outlet and a greater temperature rise. Conversely, it’s lower. If there are many magazines and other mixtures, the temperature might rise unexpectedly
The higher the sulfur and nitrogen content in the feed oil, the more intense the reaction becomes, resulting in a higher temperature at the reactor outlet and a greater temperature rise. Conversely, it’s lower. If there are many magazines and other mixtures, the temperature might rise unexpectedly