{"id":4827,"date":"2023-05-26T08:16:10","date_gmt":"2023-05-26T06:16:10","guid":{"rendered":"https:\/\/gpt-dev.i3a.es\/?p=4827"},"modified":"2023-05-26T08:21:53","modified_gmt":"2023-05-26T06:21:53","slug":"juan-manuel-colom","status":"publish","type":"post","link":"https:\/\/gpt.i3a.es\/es\/juan-manuel-colom\/","title":{"rendered":"Juan Manuel Colom"},"content":{"rendered":"
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    Investigadores<\/a><\/h3>\n

    Juan Manuel Colom<\/strong><\/h1>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/li>\n\t\t<\/ul>\t\t\t\t
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      Tel\u00e9fono:<\/strong><\/p>\n

      Email:<\/strong>\u00a0 juanmcd@unizar.es<\/p>\n

      Address:<\/strong> Office 41.020. C\/Mariano Esquillor s\/n, Edificio I+D+i, I3A, Zaragoza, Espa\u00f1a<\/p>\n<\/blockquote>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>\n\n

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      \n\t\t\t\t\t\tSOBRE M\u00cd\t\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t\t
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      Research Interests<\/h4>\n

      Chemical processes, combustion, kinetic modeling, sulfur chemistry, biomass, pellets, PAH. My latest work is related to experimental and kinetic modeling of gas-phase chemistry. I am familiar with laboratory reactors (atmospheric and high pressure), some experience with catalysts gained through my Erasmus in Denmark doing the Master Thesis, some knowledge about PAH formation from biomass in a stay in Lisbon at IST and several hours modeling with Chemkin-PRO.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>

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      12 registros<\/span> «<\/a> ‹<\/a> 1 de 3 ›<\/a> »<\/a> <\/div><\/div>

      2021<\/h3>

      Colom-D\u00edaz, Juan Manuel; Millera, \u00c1ngela; Bilbao, Rafael; Alzueta, Mar\u00eda U<\/p>

      Conversion of H2S\/O2\/NO mixtures at different pressures. Experiments and kinetic modeling<\/a> Art\u00edculo de revista<\/span> <\/p>

      En: <\/span>Fuel, <\/span>vol. 290, <\/span>pp. 120060, <\/span>2021<\/span>, ISSN: 00162361<\/span>.<\/p>

      Resumen<\/a><\/span> | Enlaces<\/a><\/span> | BibTeX<\/a><\/span><\/p>

      @article{Colom-Diaz2021b,
      \r\ntitle = {Conversion of H2S\/O2\/NO mixtures at different pressures. Experiments and kinetic modeling},
      \r\nauthor = {Juan Manuel Colom-D\u00edaz and \u00c1ngela Millera and Rafael Bilbao and Mar\u00eda U Alzueta},
      \r\ndoi = {10.1016\/j.fuel.2020.120060},
      \r\nissn = {00162361},
      \r\nyear  = {2021},
      \r\ndate = {2021-04-01},
      \r\njournal = {Fuel},
      \r\nvolume = {290},
      \r\npages = {120060},
      \r\npublisher = {Elsevier Ltd},
      \r\nabstract = {The present study deals with the oxidation of H2S\/NO mixtures, in the temperature range of 475\u20131400 K, at atmospheric pressure and 20 bar of manometric pressure. The experiments have been performed in two different set-ups, using tubular flow reactors, for different air excess ratios ($\u0142ambda$H2S = 0.3\u20136). A kinetic model has been updated with recent reactions from the literature. When NO is present, the oxidation of H2S at atmospheric pressure proceeds at slightly higher temperatures (25 K) with respect to neat H2S oxidation. At high pressure (20 bar), the experiments of the oxidation of H2S in the absence and presence of NO have been performed only at oxidizing conditions ($\u0142ambda$H2S = 2 and $\u0142ambda$H2S = 6), in order to avoid sulfur formation under reducing conditions. The outcomes of these experiments show that, in presence of NO, at the lowest temperature considered (475 K), at least 50% of H2S conversion for $\u0142ambda$H2S = 2 and 90% for $\u0142ambda$H2S = 6 is obtained. In order to further evaluate the influence of the presence of NO in H2S oxidation, additional experiments of neat NO oxidation have been performed. As NO2 formation is favored at high pressures and high O2 concentrations, the NO2-H2S interaction is thought to be responsible for the consumption of H2S, even at low temperatures (475 K). While the kinetic mechanism is able to reproduce the experimental results at atmospheric pressure, discrepancies are more relevant at high pressure (20 bar).},
      \r\nkeywords = {},
      \r\npubstate = {published},
      \r\ntppubtype = {article}
      \r\n}
      \r\n<\/pre><\/div>
      Cerrar<\/a><\/p><\/div>
      The present study deals with the oxidation of H2S\/NO mixtures, in the temperature range of 475\u20131400 K, at atmospheric pressure and 20 bar of manometric pressure. The experiments have been performed in two different set-ups, using tubular flow reactors, for different air excess ratios ($\u0142ambda$H2S = 0.3\u20136). A kinetic model has been updated with recent reactions from the literature. When NO is present, the oxidation of H2S at atmospheric pressure proceeds at slightly higher temperatures (25 K) with respect to neat H2S oxidation. At high pressure (20 bar), the experiments of the oxidation of H2S in the absence and presence of NO have been performed only at oxidizing conditions ($\u0142ambda$H2S = 2 and $\u0142ambda$H2S = 6), in order to avoid sulfur formation under reducing conditions. The outcomes of these experiments show that, in presence of NO, at the lowest temperature considered (475 K), at least 50% of H2S conversion for $\u0142ambda$H2S = 2 and 90% for $\u0142ambda$H2S = 6 is obtained. In order to further evaluate the influence of the presence of NO in H2S oxidation, additional experiments of neat NO oxidation have been performed. As NO2 formation is favored at high pressures and high O2 concentrations, the NO2-H2S interaction is thought to be responsible for the consumption of H2S, even at low temperatures (475 K). While the kinetic mechanism is able to reproduce the experimental results at atmospheric pressure, discrepancies are more relevant at high pressure (20 bar).<\/div>
      Cerrar<\/a><\/p><\/div>