Results 41 to 50 of about 318 (130)

Estudo da interatividade entre macromoléculas asfaltênicas e compostos estabilizantes: LCC e Cardanol Study of the interactivity between asphaltenic macromolecules and stabilizing compounds: cashew-nut Shell liquid and Cardanol

open access: yesPolímeros, 1998
O asfalteno contido no petróleo pode se depositar gerando inúmeros problemas que podem afetar não só a produção, mas também todas as etapas que envolvem o transporte, armazenamento e processamento do óleo cru.
Luiz Fernando B. Moreira   +2 more
doaj   +1 more source

SEPARACIÓN Y CARACTERIZACIÓN DE RESINAS Y ASFALTENOS PROVENIENTES DEL CRUDO CASTILLA. EVALUACIÓN DE SU INTERACCIÓN MOLECULAR

open access: yesCT&F Ciencia, Tecnología & Futuro, 2004
El estudio de las resinas y los asfaltenos, las fracciones más pesadas del petróleo, se ha convertido en un área de interés, debido a la abundancia de crudos pesados en Colombia y en América Latina.
Lina Navarro   +3 more
doaj  

SEPARACIÓN Y CARACTERIZACIÓN DE RESINAS Y ASFALTENOS PROVENIENTES DEL CRUDO CASTILLA. EVALUACIÓN DE SU INTERACCIÓN MOLECULAR</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>CT&F Ciencia, Tecnología & Futuro</i>, 2004 </span><br><span class="r_content">El estudio de las resinas y los asfaltenos, las fracciones más pesadas del petróleo, se ha convertido en un área de interés, debido a la abundancia de crudos pesados en Colombia y en América Latina.</span><br><span class="r_sub"><i>Lina Navarro<span id="ma_3" style="display:none">, Mario Álvarez, Jorge-Luis Grosso, Uriel Navarro</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_3')">+3 more</a></small></i></span><br><small><a href="https://doaj.org/article/80c5e2b8fb914c79ae2185f257c247d2" target="_blank" rel="nofollow" title="doaj.org/article/80c5e2b8fb914c79ae2185f257c247d2">doaj</a> </small>   <br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.71190/2001-1pdpetro-qa/qui-046" target="_blank" rel="nofollow">Formao de Estabilidade de Emulses em Fluidos de Petrleos Contendo Asfaltenos</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: gold" title="open access: gold" width="16" height="16"><i>Anais do 1º PdPetro</i></span><br><small><a href="https://explore.openaire.eu/search/publication?pid=10.71190%2F2001-1pdpetro-qa%2Fqui-046" target="_blank" rel="nofollow" title="openaire.eu/search/publication?pid=10.71190%2F2001-1pdpetro-qa%2Fqui-046">openaire</a> </small>   <div id="more_4" style="display:none"><a href="/sci_redir.php?doi=10.71190%2F2001-1pdpetro-qa%2Fqui-046" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="https://openalex.org/W4406888796" target="_blank" rel="nofollow" title="openalex.org/W4406888796">openalex.org</a><br><a href="javascript:navigator.clipboard.writeText('10.71190/2001-1pdpetro-qa/qui-046'); alert('Copied the doi');">copy doi</a> <small>(10.71190/2001-1pdpetro-qa/qui-046)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_4')">+2 more sources</a></small><br></div><div class="r"><p class="r_title"><a href="https://explore.openaire.eu/search/publication?articleId=dedup_wf_002%3A%3A1465871eef29b00bfbe814b3b2a6f758" target="_blank" rel="nofollow">Modelo fuidodinámico de un equipo de sedimentación de asfaltenos</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 2012 </span><br><span class="r_content">ResumenEl crudo pesado es una mezcla compleja de compuestos incluyendo saturados, aromáticos, resinas y asfaltenos. En esta mezcla los asfaltenos son los componentes más pesados con tendencia a ser inestables y precipitar, ocasionando inconvenientes en el transporte y procesamiento.</span><br><span class="r_sub"><i>Dallos, Carlos Gregorio<span id="ma_5" style="display:none">, Lizcano, Carlos Eduardo, Navarro, Lina Constanza, Peñaloza, Jhon Iván</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_5')">+3 more</a></small></i></span><br><small><a href="https://explore.openaire.eu/search/publication?articleId=dedup_wf_002%3A%3A1465871eef29b00bfbe814b3b2a6f758" target="_blank" rel="nofollow" title="openaire.eu/search/publication?articleId=dedup_wf_002%3A%3A1465871eef29b00bfbe814b3b2a6f758">openaire</a> </small>   <div id="more_5" style="display:none"><a href="http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-100X2012000200003&lng=en&tlng=en" target="_blank" rel="nofollow" title="scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-100X2012000200003&lng=en&tlng=en">scielo.org.co</a><br> <a href="https://revistas.uis.edu.co/index.php/revistaion/article/view/3036" target="_blank" rel="nofollow" title="revistas.uis.edu.co/index.php/revistaion/article/view/3036">revistas.uis.edu.co</a><br> </div><small><a href="#" onClick="return toggle_div(this, 'more_5')">+2 more sources</a></small><br></div><div class="r"><p class="r_title"><a href="http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-53832008000100011" target="_blank" rel="nofollow">SYNTHESIS AND CHARACTERIZATION OF THE POLYSTYRENE - ASPHALTENE GRAFT COPOLYMER BY FT-IR SPECTROSCOPY SÍNTESIS Y CARACTERIZACIÓN DEL COPOLIMERO ASFALTENO - POLIESTIRENO POR ESPECTROSCOPIA INFRAROJA</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>CT&F Ciencia, Tecnología & Futuro</i>, 2008 </span><br><span class="r_content">The creation of new polymer compounds to be added to asphalt has drawn considerable attention because these substances have succeeded in modifying the asphalt rheologic characteristics and physical properties for the enhancement of its behavior during ...</span><br><span class="r_sub"><i>Adan-Yovani León-Bermúdez<span id="ma_6" style="display:none">, Ramiro Salazar</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_6')">+1 more</a></small></i></span><br><small><a href="https://doaj.org/article/00f79a7926bf4e6eaa0f88da0fcc888b" target="_blank" rel="nofollow" title="doaj.org/article/00f79a7926bf4e6eaa0f88da0fcc888b">doaj</a> </small>   <br></div><div class="r"><p class="r_title"><a href="http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-53832009000100012" target="_blank" rel="nofollow">SYNGAS OBTAINMENT FROM THE GASIFICATION OF ASPHALTENES OF THE SAN FERNANDO CRUDE OIL</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>CT&F Ciencia, Tecnología & Futuro</i>, 2009 </span><br><span class="r_content">In this work, we developed the first study in Colombia to obtain and evaluate syngas compositions derived from asphaltenes gasification. These asphaltenes came from the implementation of a Deasphalting process to San Fernando crude oil, with the purpose ...</span><br><span class="r_sub"><i>Laura Smith Moreno-Arciniegas<span id="ma_7" style="display:none">, Fabio-Ernesto Rodríguez-Corredor, Luz-Edelmira Afanador-Rey, Jorge-Luis Grosso-Vargas</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_7')">+3 more</a></small></i></span><br><small><a href="https://doaj.org/article/995066f547cc4ed4a737443a761f2e05" target="_blank" rel="nofollow" title="doaj.org/article/995066f547cc4ed4a737443a761f2e05">doaj</a> </small>   <br></div><div class="r"><p class="r_title"><a href="http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-53831996000100006" target="_blank" rel="nofollow"><title language="spa">SOLVENTES DE DESASFALTADO</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>CT&F Ciencia, Tecnología & Futuro</i>, 1996 </span><br><span class="r_content">This paper describes how the deasphalted oil (DAO) or demetalized oil (DMO) quality (CCR, Ni, V and asphaltenes contents) changes with: DAO or DMO yield, solvent/feed ratio, type of vacuum resid ( from paraffinic to blends with visbreaking bottoms ...</span><br><span class="r_sub"><i>J. A CARRILLO<span id="ma_8" style="display:none">, J CÁCERES, G VELA, H BUENO</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_8')">+3 more</a></small></i></span><br><small><a href="https://doaj.org/article/e38f539ee46d43289458f0ca1f25f291" target="_blank" rel="nofollow" title="doaj.org/article/e38f539ee46d43289458f0ca1f25f291">doaj</a> </small>   <br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.15517/iv.v18i31.27763" target="_blank" rel="nofollow">Análisis del comportamiento micromecánico del asfalto</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Infraestructura Vial</i>, 2017 </span><br><span class="r_content">Las recientes teorías clasifican el asfalto como una matriz continua, donde asociaciones de moléculas polares (asfaltenos y resinas) se dispersan en un fluido de moléculas de menor peso molecular y polaridad (aromáticos y saturados).</span><br><span class="r_sub"><i>Adriana de Jesús García</i></span><br><small><a href="https://doaj.org/article/8be44b84b7dd4a25aeeb6e7a3654ad34" target="_blank" rel="nofollow" title="doaj.org/article/8be44b84b7dd4a25aeeb6e7a3654ad34">doaj</a> </small>   <div id="more_9" style="display:none"><a href="/sci_redir.php?doi=10.15517%2Fiv.v18i31.27763" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.15517/iv.v18i31.27763'); alert('Copied the doi');">copy doi</a> <small>(10.15517/iv.v18i31.27763)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_9')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="http://www.redalyc.org/articulo.oa?id=43043372003" target="_blank" rel="nofollow">Aggregation study of asphaltenes from colombian Castilla crude oil using molecular simulation</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Revista Facultad de Ingeniería Universidad de Antioquia</i>, 2015 </span><br><span class="r_content">Se presenta un modelo de simulación molecular para estudiar el mecanismo de agregación de asfaltenos. Se seleccionaron cuatro especies, obtenidas a partir de análisis estructurales del petróleo extraído del campo Castilla, en Colombia.</span><br><span class="r_sub"><i>Jennifer de León-Barreneche<span id="ma_10" style="display:none">, Bibian Alonso Hoyos-Madrigal, Wilson Antonio Cañas-Marín</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_10')">+2 more</a></small></i></span><br><small><a href="https://doaj.org/article/498171f8f11f4cc4b69a81b62536df28" target="_blank" rel="nofollow" title="doaj.org/article/498171f8f11f4cc4b69a81b62536df28">doaj</a> </small>   <br></div><div class="r"><div style="margin-bottom:2px;overflow:hidden"><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-chemistry/" class="suggestion"onclick="show_loader();"><b>chemistry</b></a><br/><a href="/q-humanities/" class="suggestion"onclick="show_loader();"><b>humanities</b></a><br/><a href="/q-philosophy/" class="suggestion"onclick="show_loader();"><b>philosophy</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-asphaltenes/" class="suggestion"onclick="show_loader();"><b>asphaltenes</b></a><br/><a href="/q-computer_science/" class="suggestion"onclick="show_loader();"><b>computer science</b></a><br/><a href="/q-engineering/" class="suggestion"onclick="show_loader();"><b>engineering</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-chemical_engineering/" class="suggestion"onclick="show_loader();"><b>chemical engineering</b></a><br/><a href="/q-petr%C3%B3leo/" class="suggestion"onclick="show_loader();"><b>petróleo</b></a><br/><a href="/q-asphaltene/" class="suggestion"onclick="show_loader();"><b>asphaltene</b></a><br/></div></div></div><div class="pagenav"><a href="/q-asfaltenos/p-4/" rel="nofollow"><b>previous</b></a>   <a href="/q-asfaltenos/p-3/" rel="nofollow">3</a>  <a href="/q-asfaltenos/p-4/" rel="nofollow">4</a>  <b>5</b>  <a href="/q-asfaltenos/p-6/" rel="nofollow">6</a>  <a href="/q-asfaltenos/p-7/" rel="nofollow">7</a>   <a href="/q-asfaltenos/p-6/" id="next" rel="nofollow"><b>next</b></a> </div><br></div> </div> <script>document.getElementById('loadingGif').style.display='none';</script><div style="width: 100%; height: 40px; bottom: 0px; background-color: #f5f5f5;"><div style="padding-left: 15px; padding-top: 10px"> <a href="/" rel="nofollow">Home</a> - <a href="/page-about/" rel="nofollow">About</a> - <a href="/page-disclaimer/" rel="nofollow">Disclaimer</a> - <a href="/page-privacy/" rel="nofollow">Privacy</a> </div></div> <link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.min.css"/> </body> </html>