【Daily Question】Chemical Engineering Principles 258: Distillation Column (December 9)
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The Chemical Engineering Theory section is launching the \"One Question per Day\" campaign starting today, aimed at helping everyone reinforce their basic knowledge in chemical engineering. Subsequent series will include those on \"Principles of Chemical Engineering,\" \"Mass Transfer and Separation,\" \"Thermodynamics in Chemical Engineering,\" and \"Chemical Process Engineering.\" We hope for your active support! Answers to the questions in the \"One Question per Day\" campaign can be viewed directly by replying to the post, and the topic will be closed after 1 day ! Participation earns 3 wealth points, with an additional 3 wealth points for correct answers. Short answer: The bottom temperature of a distillation column is always _______ the top temperature, and the reason for this is __________________. Higher than ； The concentration of light components at the top of the tower is high, resulting in a lower bubble point ； The pressure at the bottom of the tower is higher than that at the top, resulting in a higher bubble point at the bottom.
The bottom temperature of a distillation column is always _higher than_ the top temperature, and the reason for this is that __the lower fractions rise first; they have lower boiling points, so their temperature is lower__.
The bottom temperature of a distillation column is always higher than the top temperature, as the concentration of light components at the top is higher than that at the bottom, resulting in a lower bubble point there
The bottom temperature of a distillation column is always __higher than_____ the top temperature, and the reason for this is that the light fractions at the top have low boiling points, resulting in lower temperatures______________.
The bottom temperature of the tower determines the top temperature, as a high bottom temperature results in a greater gas-phase load, which in turn causes the top temperature to rise
Higher than； Since the concentration of light components at the top of the tower is higher than that at the bottom, the corresponding bubble point is lower
The bottom temperature of a distillation column is always higher than the top temperature, as the concentration of light components at the top is higher than that at the bottom, resulting in a lower bubble point there； Due to the pressure drop within the column, the pressure at the bottom of the column is higher than that at the top, resulting in a higher bubble point at the bottom.
The bottom temperature of a distillation column is always (higher than) the top temperature, and the reason for this is (the high pressure at the bottom and the high content of non-volatile components there).
Higher than； High pressure at the bottom of the tower and high content of non-volatile components at the bottom of the tower
The bottom temperature of a distillation column is always higher than the top temperature, as the concentration of light components at the top is higher than that at the bottom, resulting in a lower bubble point there； Due to the pressure drop within the column, the pressure at the bottom of the column is higher than that at the top, resulting in a higher bubble point at the bottom.
The bottom temperature of a distillation column is always ___ higher than ____ the top temperature, and the reason for this is that there is a temperature gradient from high to low from the bottom to the top of the column____________.