Optimization recovery material balance

Optimizing product recovery (material balance optimization)... 

Figure 3.3 Material balance optimization at a fixed separation S, Numbers marked on curve show the percent recovery of light component in the distillate stream. (Reprinted with permission from W, R, Fiaher, M. F. Doherty, and J. H. Douglas, Ind. Eng. and Chan. Proc. Deg. and Deuel., Vol, 24, p. 805, Copyright (1985), American Chemical Society.)...

Optimizing Product Recovery (Material Balartce Optimization) 90 Optimizing Separation (Energy Balance Optimization) S3... 

From the above discussion, it should be apparent that for POE nonionics, there is a particular temperature where the hydrophilic and lipophilic characters of the surfactant balance each other and yow is at, or close to, its minimum value. It is usually defined operationally, for example, as the temperature where the surfactant phase solubilizes equal volumes of water and nonpolar material or the temperature at which an emulsion (Chapter 8) of the surfactant, water, and nonpolar material inverts. In the latter case, it is known as the phase-inversion temperature (PIT) (Chapter 8, Section IVB). Similarly, there is an electrolyte content at which the hydrophilic and lipophilic characters of ionic surfactants balance. The point at which equal volumes of water and nonpolar material are solubilized into the surfactant is known as the optimal salinity (Healy, 1974) and has been extensively investigated for enhanced oil recovery (Healy, 1977 Hedges, 1979 Nelson, 1980). The optimal salinity or PIT is at or close to the point where the parameter Vh/lcao (Chapter 3, Section II) equals 1 and lamellar normal and reverse micelles are readily interconvertable. 

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