<?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>2224-6185</journal-id>
<journal-title><![CDATA[Tecnología Química]]></journal-title>
<abbrev-journal-title><![CDATA[RTQ]]></abbrev-journal-title>
<issn>2224-6185</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-61852022000200303</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estimación del nivel de actividad del catalizador de hidrofinación de nafta en Refinería Cienfuegos S.A.]]></article-title>
<article-title xml:lang="en"><![CDATA[Activity level estimation of the nafta hydrofination catalyst at Cienfuegos`oil Refinery S.A.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lobelles-Sardiñas]]></surname>
<given-names><![CDATA[Gabriel Orlando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Conde]]></surname>
<given-names><![CDATA[Luis Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morejón-Gi]]></surname>
<given-names><![CDATA[Rosemary]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Refinería Cienfuegos S.A  ]]></institution>
<addr-line><![CDATA[Finca Carolina Cienfuegos]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>42</volume>
<numero>2</numero>
<fpage>303</fpage>
<lpage>322</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-61852022000200303&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-61852022000200303&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-61852022000200303&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el proceso de hidrofinación de nafta se utiliza un catalizador de cobalto- molibdeno soportado en alúmina, cuya actividad ha disminuido con el tiempo de uso, producto de las condiciones operacionales del proceso. Por tanto, es necesario determinar con exactitud la vida útil y remanente de dicho catalizador para conocer cuándo será necesario regenerar o cambiarlo. En tal sentido, es objetivo de esta investigación, estimar la actividad del catalizador de hidrofinación de nafta, para las condiciones operacionales de la Refinería Cienfuegos S.A. Luego de la revisión bibliográfica fue seleccionado el Método Correlativo, basado en experiencias de plantas piloto del Instituto Francés del Petróleo. El desarrollo del método correlativo permitió obtener las curvas correspondientes, entre ellas la Actividad Relativa y WABT normalizada, vs. días de corrida, mediante las cuales se pudo precisar la actividad del catalizador y su tiempo de vida útil, favoreciendo la toma de decisiones para evitar pérdidas económicas. Se comprobó la validez de sus resultados comparándolos con los obtenidos por instituciones especializadas y se recomendó la implementación del mismo como parte del control que se realiza en la planta. Como resultado relevante se estimó la vida útil remanente del catalizador en 3,3 años, en los que se procesarán 54 432 m3 adicionales de nafta virgen, más que la programada, con una reducción del costo del catalizador hasta 0,072 $/m3]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In the naphtha hydrofination process, a cobalt-molybdenum catalyst supported on alumina is used, the activity of which has decreased with the time of use as a result of the operational conditions of the process. Therefore, it is necessary to accurately determine the useful and remaining life of said catalyst to know when it will be necessary to regenerate or change it. In this sense, the objective of this research is to estimate the activity of the naphtha hydrofination catalyst, for the operational conditions of Refinería Cienfuegos S.A. After the bibliographic review, the Correlative Method was selected based on experiences of pilot plants of the French Petroleum Institute. The development of the correlative method allowed obtaining the corresponding curves, among them the Relative Activity and normalized WABT vs running days, through which the catalyst activity and its useful life time could be specified, favoring decision-making to avoid economic losses. The validity of its results was verified by comparing them with those obtained by specialized institutions and its implementation was recommended as part of the control carried out in the plant. As a relevant result, the remaining useful life of the catalyst was estimated at 3,3 years in which an additional 54 432 m3 of virgin naphtha will be processed, more than the one programmed with a reduction in the cost of the catalyst to 0,072 $/ m3]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[método correlativo]]></kwd>
<kwd lng="es"><![CDATA[catalizador]]></kwd>
<kwd lng="es"><![CDATA[estimación actividad]]></kwd>
<kwd lng="en"><![CDATA[correlative method]]></kwd>
<kwd lng="en"><![CDATA[catalyst]]></kwd>
<kwd lng="en"><![CDATA[activity estimation]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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