Column Design for Recovery of NH3 and CO2 from Wastewater in a Urea Plant |
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| Abstract: | Abstract The stripping of CO2 and NH3 from chemically reactive dilute aqueous solution in a packed column is modeled using a section-to-section calculation procedure. Equilibrium chemical reaction is accounted for by correcting the liquid film mass transfer coefficient through enhancement factors for the transferring species. Comparison with pilot scale stripping experiments shows that the packed height required for a given separation can be predicted to within 7% on average. |
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