【Q&A Question 012】2018.01.12
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【Q&A Question 012】January 12, 2018: What is the relationship between the top of tower temperature and the reflux rate at the tower top? The top of the tower temperature is controlled by the reflux rate at the tower top; when the temperature is high, the product becomes heavier, and it is necessary to increase the reflux rate to control the quality. However, the backflow rate should not be too high to prevent overloading of the upper trays and the overhead system. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Due to the limitations on the number of posts in the “One Question per Day” section, “One Image per Day” has been moved to the registered devices section; you can access it through the directory I posted. Click me to access liuquan1100’s post topic directory, where you can find the daily questions I posted. For management reasons, if you want to view content from a few days ago, please use the summary post below to do so. 2018 Chemical Engineering Technology Training – Daily Questions Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=18889712018 Registered Equipment Section – Daily Images Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888970
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The reflux rate at the top of the tower determines the temperature there; a higher reflux rate results in a lower temperature at the top, while a lower reflux rate leads to a higher temperature
The greater the reflux rate, the lower the top temperature of the tower; a lower reflux rate results in a slightly higher top temperature.
What is the relationship between the top of tower temperature and the top of tower reflux flow? Answer: The top of the tower temperature is controlled by the reflux rate at the tower top; when the temperature is high, the product becomes heavier, so it is necessary to increase the reflux rate to improve quality. However, the backflow rate should not be too high to prevent overloading of the upper trays and the overhead system.
As the reflux flow at the tower top increases, the temperature at the tower top decreases
The reflux flow decreases, and the top temperature rises.
High reflux flow rate, low tower top temperature； Low reflux flow rate, high top temperature
Top reflux flow control top temperature
The top of the tower temperature is controlled by the reflux rate at the tower top; when the temperature is high, the product becomes heavier, and it is necessary to increase the reflux rate to control the quality. However, the backflow rate should not be too high to prevent overloading of the upper trays and the overhead system.
The reflow at the top of the tower determines the temperature at that level; a higher reflow rate results in a lower temperature at the top, while a lower reflow rate leads to an increase in the top temperature