A Paper about the Slope of the Equilibrium Line

There is no simple definition of the slope of the equilibrium line multicomponent systems because vapor liquid equilibrium is represented by a surface. This paper describes a method of approximating the slope in multicomponent systems based on the new concept the design component, defined as that co...

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Main Authors: Ross Taylor, Markus Duss
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2018-10-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/9168
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spelling doaj-b3bdbbfbc77b44d480a449834a2569372021-02-16T21:18:56ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162018-10-016910.3303/CET1869045A Paper about the Slope of the Equilibrium LineRoss TaylorMarkus DussThere is no simple definition of the slope of the equilibrium line multicomponent systems because vapor liquid equilibrium is represented by a surface. This paper describes a method of approximating the slope in multicomponent systems based on the new concept the design component, defined as that compound we seek to eliminate from the mixture in a particular section of the column. Unlike traditional methods, this new approach can also be applied to absorber and stripper columns. Two analytical approximate methods of calculating the design slope are described and shown to be in good agreement with the rigorous design flash calculation even in cases where the relative volatility is far from constant. These simple approximations, which need nothing beyond what is readily available from any column simulation program, appear to be adequate for design and can be easily programmed in any spreadsheet.https://www.cetjournal.it/index.php/cet/article/view/9168
collection DOAJ
language English
format Article
sources DOAJ
author Ross Taylor
Markus Duss
spellingShingle Ross Taylor
Markus Duss
A Paper about the Slope of the Equilibrium Line
Chemical Engineering Transactions
author_facet Ross Taylor
Markus Duss
author_sort Ross Taylor
title A Paper about the Slope of the Equilibrium Line
title_short A Paper about the Slope of the Equilibrium Line
title_full A Paper about the Slope of the Equilibrium Line
title_fullStr A Paper about the Slope of the Equilibrium Line
title_full_unstemmed A Paper about the Slope of the Equilibrium Line
title_sort paper about the slope of the equilibrium line
publisher AIDIC Servizi S.r.l.
series Chemical Engineering Transactions
issn 2283-9216
publishDate 2018-10-01
description There is no simple definition of the slope of the equilibrium line multicomponent systems because vapor liquid equilibrium is represented by a surface. This paper describes a method of approximating the slope in multicomponent systems based on the new concept the design component, defined as that compound we seek to eliminate from the mixture in a particular section of the column. Unlike traditional methods, this new approach can also be applied to absorber and stripper columns. Two analytical approximate methods of calculating the design slope are described and shown to be in good agreement with the rigorous design flash calculation even in cases where the relative volatility is far from constant. These simple approximations, which need nothing beyond what is readily available from any column simulation program, appear to be adequate for design and can be easily programmed in any spreadsheet.
url https://www.cetjournal.it/index.php/cet/article/view/9168
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