<?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>0123-3033</journal-id>
<journal-title><![CDATA[Ingeniería y competitividad]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. compet.]]></abbrev-journal-title>
<issn>0123-3033</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ingeniería, Universidad del Valle]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-30332024000300017</article-id>
<article-id pub-id-type="doi">10.25100/iyc.v26i3.14190</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Green hydrogen: a state-of-the-art review of generation technologies for the decarbonisation of the energy sector]]></article-title>
<article-title xml:lang="es"><![CDATA[Hidrógeno verde: revisión del estado del arte de las tecnologías de generación para la descarbonización del sector energético]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cuellar Pérez]]></surname>
<given-names><![CDATA[Yohan Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bermúdez Santaella]]></surname>
<given-names><![CDATA[José Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera Susa]]></surname>
<given-names><![CDATA[Daniel Andrey]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Francisco de Paula Santander  ]]></institution>
<addr-line><![CDATA[Cúcuta ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Francisco de Paula Santander  ]]></institution>
<addr-line><![CDATA[Cúcuta ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>26</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-30332024000300017&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-30332024000300017&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-30332024000300017&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The growing concern about environmental problems and the depletion of fossil fuels has generated interest in the development of technologies that allow us to produce electricity without polluting the environment. Hydrogen in the last decades has become the main candidate to replace fossil fuels, having the possibility to be used as a primary fuel to be burned in combustion engines, or as an energy vector for the production of energy by means of fuel cells, becoming an attractive fuel due to its high energy density and that does not emit any type of pollution. At present, hydrogen is not produced for energy purposes, but for industrial purposes, so the purpose of this article is to learn about the predominant forms of hydrogen production, which use fossil fuels as raw materials, and to study the new technologies developed to obtain decarbonised hydrogen for the energy sector, investigating known technologies such as electrolysis, comparing the functioning of the existing types of electrolysis and describing other novel forms such as those that make up the production of biological hydrogen or bio-hydrogen, analysing different research with the aim of presenting the results in fermentative methods, the use of microalgae and the microbial electrolysis cell, explaining the main challenges and analysing the characteristics and the state of research into these forms of production.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La creciente preocupación por los problemas ambientales y el agotamiento de los combustibles fósiles ha generado un interés hacia el desarrollo de tecnologías que nos permitan producir electricidad sin necesidad de contaminar el medio ambiente. El hidrógeno en las últimas décadas se ha convertido en el principal candidato para reemplazar a los combustibles fósiles, teniendo la posibilidad de poder utilizarse como combustible primario para quemarse en motores de combustión, o como vector energético para la producción de energía por medio de las pilas de combustible, convirtiéndose en un combustible atractivo por su alta densidad energética y que no emite ningún tipo de contaminación. En la actualidad, el hidrógeno no se produce con fines energéticos, sino industriales, por ello, el propósito de este artículo es conocer las formas predominantes de producción de hidrógeno, que usan combustibles fósiles como materia prima y estudiar las nuevas tecnologías desarrolladas para obtener hidrógeno descarbonizado destinado al sector energético, investigando tecnologías conocidas como la electrólisis llegando a comparar el funcionamiento de los tipos de electrólisis existentes y describir otras formas novedosas como las que componen la producción de hidrógeno biológico o bio-hidrógeno, llegando a analizar diversas investigaciones con el objetivo de exponer los resultados en los métodos fermentativos, el uso de microalgas y la celda de electrólisis microbiana, exponiendo los principales desafíos y analizando las características y el estado de investigación de estas formas de producción.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[hydrogen production]]></kwd>
<kwd lng="en"><![CDATA[green hydrogen]]></kwd>
<kwd lng="en"><![CDATA[biohydrogen]]></kwd>
<kwd lng="en"><![CDATA[water electrolysis]]></kwd>
<kwd lng="en"><![CDATA[alternative energies]]></kwd>
<kwd lng="en"><![CDATA[dark fermentation]]></kwd>
<kwd lng="en"><![CDATA[photofermentation]]></kwd>
<kwd lng="en"><![CDATA[biophotolysis]]></kwd>
<kwd lng="en"><![CDATA[fossil fuels]]></kwd>
<kwd lng="es"><![CDATA[producción de hidrógeno]]></kwd>
<kwd lng="es"><![CDATA[hidrógeno verde]]></kwd>
<kwd lng="es"><![CDATA[Biohidrógeno]]></kwd>
<kwd lng="es"><![CDATA[electrólisis del agua]]></kwd>
<kwd lng="es"><![CDATA[energías alternativas]]></kwd>
<kwd lng="es"><![CDATA[fermentación oscura]]></kwd>
<kwd lng="es"><![CDATA[fotofermentación]]></kwd>
<kwd lng="es"><![CDATA[biofotólisis]]></kwd>
<kwd lng="es"><![CDATA[combustibles fósiles]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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