FLASH DRUM PERFORMANCE ◆ Separation Factor SF ∥ Detween components I dk SF ik= SR, SRk But SR VY/lX and sR k VY/LX So sFik =/vY; /LX /Yk/lx=K /k=aik ◆ Conclusion The maximum separation is limited by the relative volatility aik which is set by nature Fractional Recovery of component FR=/F;=两y+Lx/=/SS+1 where S V.L 0/6/99 Equilibrium Staged separations 50/6/99 Equilibrium Staged Separations 5 FLASH DRUM PERFORMANCE u Separation Factor SFjk between components j and k SF jk = SRj / SRk But SRj = V Yj / L Xj and SRk = V Yk / L Xk So SF jk = [V Yj / L Xj ] / [V Yk / L Xk ] = Kj / Kk = ajk u Conclusion The maximum separation is limited by the relative volatility ajk which is set by nature. u Fractional Recovery of component j FRj = Vyj / F zj = Vyj / [Vyj + L xj ] = [ Sj / Sj + 1] where Sj = VKj / L