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Levenspiel plot
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Levenspiel plot : ウィキペディア英語版
Levenspiel plot
A Levenspiel plot is a plot used in chemical reaction engineering to determine the required volume of a chemical reactor given experimental data on the chemical reaction taking place in it. It is named for chemical engineering professor Octave Levenspiel.
==Derivation==
For a continuous stirred-tank reactor (CSTR), the following relationship applies:〔

V = \left ( \frac \right ) F_A0 X
where:
*V is the reactor volume
*F_A0 is the molar flow rate per unit time of the entering reactant A
*X is the conversion of reactant A
*-r_A is the rate of disappearance of reactant A per unit volume per unit time
For a plug flow reactor (PFR), the following relationship applies:
V = F_A0 \int \left ( \frac \right ) dX
If F_A0 \over -r_A is plotted as a function of X, the required volume to achieve a specific conversion can be determined given an entering molar flow rate.
The volume of a CSTR necessary to achieve a certain conversion at a given flow rate is equal to the area of the rectangle with height equal to F_A0 \over -r_A and width equal to X.
The volume of a PFR necessary to achieve a certain conversion at a given flow rate is equal to the area under the curve of F_A0 \over -r_A plotted against X.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Levenspiel plot」の詳細全文を読む



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