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Industrial Uses of Equation of State - A State of the Art Review

IP.com Disclosure Number: IPCOM000221687D
Publication Date: 2012-Sep-15
Document File: 84 page(s) / 2M

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Page 01 of 84

USES OF EQUATIONS OF REVIEW

INDUSTRIAL Stanley B. Adler, Calvin F. Spencer,

Hal Ozkardesh, and Chia-Ming Kuo

        Pullman Kellogg
1300 Three Greenway Plaza, East Houston, Texas 77046

       A paper prepared for the Engineering Foundation Conference on "The Estimation and Correlation of Phase Equilibria and Fluid

Properties in the Chemical Industry".

Asilomar Conference Site

Pacific Grove, California, U.S.A.

January ~6-~I, 1977

A STATE OF THE ART


Page 02 of 84

INDUSTRIAL USES OF EQUATIONS OF STATE A STATE OF THE ART REVIEW

INTRODUCTION

     The objective of the the authors of this paper

presentations at this conference~ as understand them, is to document the

state of the art in various areas of thermodynamics. In turn the ultimate objective is to enable academia to grasp the needs of industry, while industry becomes better a~quainted with the new tools developed in the universities. It is recognized that some of these will be ready for use while others are just emerg- ing concepts, hopefully applicable in the future.

     Those of us from industry on the week's program have been asked to describe, from the industrial side of the fence, what are the current activities, the developments and the applications of the particular area of phase equilibria or physical proper- ties that has been individually assigned. This paper pertains
to equations of state, especially their application in phase equilibrium predictions. It is not the intention of this key- note speech, nor would it be appropriate, to review all the equations
thah does
Prausnitz
tions
state

At

of
make such a review is

     (1969). Instead this and limitations of some that are in use.

the very outset state that have been published. An excellent paper the one of Tsonopoulos and
paper will present the applica-

of the principal equations of

-- before even getting to the body of


Page 03 of 84

March i, 197~

Page 2

picture the magnitude of indus-. of state. The two lists given

of this involvement. industrial work in equations

of state have been assembled. In a second category, the appll- cations in which equations of state are intermixed with thermo- dynamic principles in day-to-day process and design problems and computations are shown. To put it another way, the first llst deals with sharpening the tools; the second list with using the tools.

CHARACTERISTICS OF EQUATIONS

     When equations of state
possess two essential characteristics:

(2) Workability.

Versatility

     To best describe equations of state, a Martin (1967), a long

OF STATE REQUIRED BY INDUSTRY
are utilized in industry they must


(i) Versatility and

the versatility possessed by the choice quotation is taken from Professor Joseph time investigator in this field. "The

second reason for developing new equations of state concerns the exceptional power and utility of an equation of state. When combined with appropriate thermodynamic relations, a well-behaved equation can predict with high precision isothermal changes in heat capacity, enthalpy, entropy and fugaci...