Distillation: Flux units & tray efficiency

0:00 What to understand in detail 0:20 Q What flow units? 0:54 A think about ∆Hvap 1:54 q-line is an EB 2:12 More Physical trays than Equilibrium stages 2:37 Reboiler and condenser 3:34 Overall tray efficiency 4:07 Murphree tray efficiency 5:01 What determines tray efficiency? 5:39 Weeping 6:33 Gas flux vs tray efficiency Answers the following questions: Are the flows in McCabe-Thieles graphical method implicitly molar fluxes or mass fluxes? What is overall tray efficiency and Murphree tray efficiency? Why can we get different tray efficiencies in a real distillation column if we change the operating conditions? Links to distillation screencasts Intro: Intro & overview https://www.youtube.com/watch?v=qF31ODkiPyc Phase equilibria https://www.youtube.com/watch?v=lz-RWsMYx48 Interpreting T-x,y and H-x,y diagrams https://www.youtube.com/watch?v=kYqLgoMP66M Overall design choices https://www.youtube.com/watch?v=f2Te_n0Z5IA Continuous destillation (McCabe-Thiele): MB and EB https://www.youtube.com/watch?v=9gZeftUNejk Exam question https://www.youtube.com/watch?v=7f9LIk9qt48 Flux units & tray efficiency https://www.youtube.com/watch?v=HOGREUb49bA Nmin, Rmin, CAPEX & OPEX https://www.youtube.com/watch?v=EE_-tynzix4 Changing operating conditions https://www.youtube.com/watch?v=iuyXSc3Hb-Q Spot what’s wrong https://www.youtube.com/watch?v=w5pKBpKRA5Q Wider context: Separation https://www.youtube.com/watch?v=jW3bcAWBhFw DoF analysis distillation https://www.youtube.com/watch?v=2hR0J50OS-g Special: Lab intro https://www.youtube.com/watch?v=E8u2i7wDN8w mol% w% https://www.youtube.com/watch?v=iyJRsIyJmD0