A waste gas contains 55 mol % DMF (dimethylformamide a common solvent) in air. A purification unit is available that can remove a fraction
A waste gas contains 55 mol % DMF (dimethylformamide a common solvent) in air. A purification unit is available that can remove a fraction of the DMF in the feed to the unit. Some of the material leaving the purification unit is recycled back to the inlet. First complete a DOF analysis of this process. Then develop an equation that relates the DMF in the product stream to DMF in the feed through fs, the fractional split, and f, the fractional recovery in the separator. Calculate the purity of the final product, and the composition of the stream fed to the purification unit, as a function of fs and fr. Plot your results. What is the required fractional split if fR = 0.67 and the DMF content of the exit gas must be reduced to 10 mol%? 55% DMF 45% air Mixer Separator DMF Splitter 10% DMF 90% air
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DOF Degrees of Freedom Analysis 1 Lets identify the variables x DMF content in the feed 55 mol y DMF ... View full answer
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Authors: Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
4th edition
978-1118431221, 9781119192138, 1118431227, 1119192137, 978-1119498759
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