Smoker equation

The Smoker equation (59) is convenient to use in binary separations with a large number of stages. The equation assumes constant relative volatility and constant molar overflow. The main application is in superfractionators such as ethylene-ethane and isobutane-n-butane separations. The Smoker equation is essentially an analytical solution... [Pg.123]

The Smoker equation must be applied individually for the rectifying and stripping sections. The values used for the rectifying section are... [Pg.123]

Hohmann (60) presents an extension of the Smoker equation to complex columns. ... [Pg.124]

Equation-Based Design Methods Exact design equations have been developed for mixtures with constant relative volatility. Minimum stages can be computed with the Fenske equation, minimum reflux from the Underwood equation, and the total number of stages in each section of the column from either the Smoker equation (Trans. Am. Inst. Chem. Eng., 34, 165 (1938) the derivation of the equation is shown, and its use is illustrated by Smith, op. cit.), or Underwoods method. A detailed treatment of these approaches is given in Doherty and Malone (op. cit., chap. 3). Equation-based methods have also been developed for nonconstant relative volatility mixtures (including nonideal and azeotropic mixtures) by Julka and Doherty [Chem. Eng. Set., 45,1801 (1990) Chem. Eng. Sci., 48,1367 (1993)], and Fidkowski et al. [AIChE /., 37, 1761 (1991)]. Also see Doherty and Malone (op. cit., chap. 4). [Pg.25]

DETERMINATION OF PLATES IN FRACTIONATING COLUMNS BY THE SMOKER EQUATIONS ... [Pg.513]

THIS PROGRAM CALCULATES THE NUMBER OF EQUILIBRIUM STAGES USING THE SMOKER EQUATIONS. [Pg.577]

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