<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0123-7799</journal-id>
<journal-title><![CDATA[TecnoLógicas]]></journal-title>
<abbrev-journal-title><![CDATA[TecnoL.]]></abbrev-journal-title>
<issn>0123-7799</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico Metropolitano - ITM]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-77992020000300201</article-id>
<article-id pub-id-type="doi">10.22430/22565337.1638</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caso de estudio de la destilación etanol-agua en operación continua y discontinua y su simulación con ecuaciones cúbicas de estado y modelos de actividad]]></article-title>
<article-title xml:lang="en"><![CDATA[Case study of ethanol-water distillation in continuous and discontinuous operation and its simulation with cubic equations of state and activity models]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Benabithe]]></surname>
<given-names><![CDATA[Zulamita Zapata]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vanegas]]></surname>
<given-names><![CDATA[Diana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montoya]]></surname>
<given-names><![CDATA[Juan Camilo Rendón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velásquez]]></surname>
<given-names><![CDATA[Jorge A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Pontificia Bolivariana  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Pontificia Bolivariana  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Pontificia Bolivariana  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Pontificia Bolivariana  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>23</volume>
<numero>49</numero>
<fpage>201</fpage>
<lpage>227</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-77992020000300201&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-77992020000300201&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-77992020000300201&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La simulación del proceso de destilación binaria representa un problema interesante debido a la dinámica compleja del sistema, las interacciones termodinámicas en cada etapa de equilibrio y la interacción entre las corrientes internas y externas. En este trabajo se evalúa el funcionamiento y simulación de una torre de destilación continua y una de destilación discontinua. La simulación se realizó mediante los métodos McCabe-Thiele y riguroso, y empleando la ecuación de estado cúbica modificada Forero-Velázquez-Huron-Vidal (FVHV) propuesta inicialmente por Peng-Robinson y el modelo de actividad No-Random-Two-Liquid (NRTL). La simulación predijo la composición de los productos, el número de etapas y la etapa de alimentación. La torre de destilación cuenta con 9 etapas de equilibrio reales, por FVHV se calcularon 8 etapas y por NRTL 9, con ambos modelos se encontró que la etapa de alimentación óptima era el plato 7. En la torre de destilación discontinua se realizaron dos ensayos, con empaque tipo pall y sin empaque. Aunque la ecuación de estado FVHV tiene varias ventajas ya que todos los parámetros de las sustancias puras están generalizados en términos de propiedades termodinámicas en el punto crítico, la ecuación se correlaciona de forma acertada tanto para sustancias polares como no polares, pero en este caso el modelo NRTL presentó mejor ajuste en la composición, pero para el volumen del destilado ningún modelo representó la tendencia experimental. Se utilizó un complemento con Ms Excel® llamado homosolver para la solución del sistema de ecuaciones, para la solución de las ecuaciones en la torre de destilación discontinua se usó como método iterativo el método de Euler.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A simulation of a column distillation represents an interesting problem because of the complex dynamics of the system, thermodynamic interactions in each tray and interaction between internal and external currents. This work evaluates the operation and simulation of a continuous distillation tower (CDT) and discontinuous distillation tower (DDT). The simulation was performed using the McCabe-Thiele and rigorous methods and using the modified cubic state equation Forero-Velazquez-Huron-Vidal (FVHV) and the No-Random-Two-Liquid (NRTL) activity model. The simulation predicts the composition of distillate and of the bottoms, the number of trays and the feeding stage. The continuous distillation tower has 9 real equilibrium trays, for FVHV was 8 trays were calculated and for NRTL was 9 trays, with both models it was found that the optimal feeding trays was 7. In the case of DDT two trials were carried out, with pall type packaging and without packaging, although the equation FVHV has many advantages since all pure substances&#8217; parameters are generalized in terms of the thermodynamic properties up to the critical point. The equation correlates fittingly substances polar and non-polar, the equation NRTL presented a better fit in the composition, but for the volume of the distillate any model represented the experimental trend. A complement with Ms Excel® called Homosolver was used for the solution of the system of equations, for the solution of the equations in instantaneous distillation the Euler's method was used as an iterative method.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ecuación de estado cúbica]]></kwd>
<kwd lng="es"><![CDATA[Equilibrio vapor-líquido]]></kwd>
<kwd lng="es"><![CDATA[Simulación]]></kwd>
<kwd lng="es"><![CDATA[Torre de destilación]]></kwd>
<kwd lng="es"><![CDATA[etanol-agua]]></kwd>
<kwd lng="en"><![CDATA[Cubic equation of state]]></kwd>
<kwd lng="en"><![CDATA[Vapour-Liquid Equilibrium]]></kwd>
<kwd lng="en"><![CDATA[Simulation]]></kwd>
<kwd lng="en"><![CDATA[Distillation tower]]></kwd>
<kwd lng="en"><![CDATA[ethanol-water]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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