【Daily Question】Chemical Engineering Principles 544: Distillation Column Design (April 1)
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This post was last edited by Zaihui Kangqiao on 2017-4-1 08:15. The Chemical Engineering Theory section is now launching a \"One Question per Day\" activity to help everyone reinforce their basic knowledge in chemical engineering. Subsequent series such as \"Principles of Chemical Engineering\", \"Mass Transfer and Separation\", \"Thermodynamics in Chemical Engineering\", and \"Chemical Process Engineering\" will also be introduced. We hope for your active support~~~ Replies to the \"One Question per Day\" activity can be viewed directly at **; the thread will be closed after 1 day! ! To encourage continued participation from everyone this year! Participation earns 3 wealth points, with an additional 4 wealth points for correct answers~~~ Short answer: When designing a distillation tower, if the process requirements are fixed and it is necessary to reduce the number of theoretical plates required, the reflux ratio should be ______, the amount of heating steam needed in the distillation vessel should be _______, the required tower diameter should be _______, and the total cost of operating expenses and equipment investment will be ________. Increase, increase, increase; drop rapidly to a minimum point and then rise again.
Increase； Increase ； Increase ； Plummeted to a minimum before rising again
Increase, increase, increase, increase
Increase, increase, increase; then drop rapidly to a minimum before rising again
Increase, increase, increase; drop rapidly to a minimum point before rising again
Increase； Increase ； Increase ； Plummeted to a minimum before rising again
When designing a distillation column, if process requirements are fixed and the number of theoretical plates required is to be reduced, the reflux ratio must be increased; the amount of heating steam needed in the distillation vessel also increases, as does the required diameter of the column. As a result, the total costs associated with operating expenses and equipment investment rise.
Increase Increase Increase Drop and then rise again
Increase； Increase ； Increase ； A process of rapidly dropping to a minimum and then rising again.
Increase, increase, increase; drop rapidly to a minimum point and then rise again.
Increase, increase, increase; drop sharply to a minimum point before rising again