PHASE EQUILIBRIA FOR MIXTURES CONTAINING VERY MANY COMPONENTS. DEVELOPMENT AND APPLICATION OF CONTINUOUS THERMODYNAMICS FOR CHEMICAL PROCESS DESIGN.

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作者
Cotterman, Ronald L. [1 ]
Bender, Rainer [1 ]
Prausnitz, John M. [1 ]
机构
[1] Lawrence Berkeley Lab, Materials, & Molecular Research Div,, Berkeley, CA, USA, Lawrence Berkeley Lab, Materials & Molecular Research Div, Berkeley, CA, USA
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HYDROCARBONS - Processing - LIQUIDS - NATURAL GAS - THERMODYNAMICS;
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摘要
For some multicomponent mixtures, where detailed chemical analysis is not feasible, the composition of the mixture may be described by a continuous distribution function of some convenient macroscopic property such as normal boiling point or molecular weight. To attain a quantitative description of phase equilibria for such mixtures, this work has developed thermodynamic procedures for continuous systems; that procedure is called continuous thermodynamics. To illustrate, continuous thermodynamics is used to calcualte dew points for natural-gas mixtures, solvent loss in a high-pressure absorber, and liquid-liquid phase equilibria in a polymer fractionation process. Continuous thermodynamics provides a rational method for calculating phase equilibria for those mixtures where complete chemical analysis is not available but where composition can be given by some statistical description.
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页码:194 / 203
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