【Daily Question No. 328】November 30, 2018
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This post was last edited by Internet Invisible Man on 2018-11-30 at 10:51. [Daily Question No. 328] 2018.11.30: How is the bed temperature in a hydrofining reactor controlled? The temperature control of the hydrogenation refining reactor bed is primarily achieved by adjusting the amount of cold hydrogen supplied to each bed based on the temperature measurement signals from those beds, thereby removing the heat generated by the reactions in the beds and thus controlling their temperature. (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
The inlet temperature is controlled by the furnace outlet temperature, while the inlet temperatures of the second and third bed layers are controlled by cold hydrogen in order to regulate the bed layer temperatures
To ensure uniform distribution of hydrogen after it enters the tower
The tower inlet is equipped with a distributor to ensure even distribution of hydrogen once it enters the tower. From top to bottom, the tower contains #12 small ceramic balls, #6 small ceramic balls, a hydrogenation catalyst, #6 small ceramic balls, and #12 small ceramic balls, leading up to the outlet. The dual-tower structure allows for operation in series or parallel mode, making it suitable for various operating conditions. The hydrogenation products can be recycled back to the tower inlet. Fresh hydrogen from the compressor outlet is divided into two streams: one stream goes directly into the tower, while the other is mixed with the recycled hydrogen; the mixing ratio can be controlled in order to regulate the temperature within the tower. Temperature measurement points are located at the upper, middle, and lower sections of the tower.
By injecting cold hydrogen into each bed layer.
The inlet temperature is controlled by the furnace outlet temperature, while the inlet temperatures of the second and third bed layers are controlled by cold hydrogen in order to regulate the bed layer temperatures
The temperature is controlled by regulating the amount of cold hydrogen injected into each bed
1. Control the reactor inlet temperature 2. Interlayer quench control