Results 31 to 40 of about 133 (84)
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_1" style="display:none">, J CÁCERES, G VELA, H BUENO</span> <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_1')">+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="http://www.dspace.espol.edu.ec/bitstream/123456789/52284/1/T-70598%20MENDOZA%20SOLIS.pdf" target="_blank" rel="nofollow">Viabilidad para la exploración y explotación de arenas bituminosas en el litoral Ecuatoriano</a> <b><a href="http://www.dspace.espol.edu.ec/bitstream/123456789/52284/1/T-70598%20MENDOZA%20SOLIS.pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 2021 </span><br><span class="r_content">Partiendo de un análisis general de las arenas bituminosas a lo largo de la provincia de Santa Elena y sus características. A pesar de que los indicios de la existencia de estas arenas se muestran por todo el litoral ecuatoriano, el trabajo lo centramos ...</span><br><span class="r_sub"><i>Guzmán, Andrés, Director<span id="ma_2" style="display:none">, Solis Gellibert, Ezequiel Ismael, Mendoza Muñoz, Stefany Elizabeth</span> <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_2')">+2 more</a></small></i></span><br><small><a href="https://core.ac.uk/works/307582069" target="_blank" rel="nofollow" title="core.ac.uk/works/307582069">core</a> </small> <br></div><div class="r"><p class="r_title"><a href="https://geobrasiliensis.org.br/geobrasiliensis/article/view/382/401" target="_blank" rel="nofollow">Caracterização geoquímica molecular de arenitos asfálticos a partir da desagregação branda 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"><i>Geochimica Brasiliensis</i>, 2013 </span><br><span class="r_content">Uma quantidade significativa de hidrocarbonetos, provavelmente remanes-centes do “óleo original”, fica retido (ocluído) no interior da matriz de asfaltenos e protegido dos processos de alteração secundária que ocorreram posteriormente nos reservatórios ...</span><br><span class="r_sub"><i>Fernanda Lins da Costa<span id="ma_3" style="display:none">, Laercio Lopes Martins, Georgiana Feitosa da Cruz, Lívia Carvalho Santos, Alexsandro Araujo da Silva</span> <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_3')">+4 more</a></small></i></span><br><small><a href="https://doaj.org/article/c0632375c7c04718b4e7c2f36bbd354f" target="_blank" rel="nofollow" title="doaj.org/article/c0632375c7c04718b4e7c2f36bbd354f">doaj</a> </small> <br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1590/S0104-14281998000300007" target="_blank" rel="nofollow">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</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Polímeros</i>, 1998 </span><br><span class="r_content">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.</span><br><span class="r_sub"><i>Luiz Fernando B. Moreira<span id="ma_4" style="display:none">, Gaspar González, Elizabete F. Lucas</span> <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_4')">+2 more</a></small></i></span><br><small><a href="https://doaj.org/article/58c7721056874828858e9a6814917d6c" target="_blank" rel="nofollow" title="doaj.org/article/58c7721056874828858e9a6814917d6c">doaj</a> </small> <div id="more_4" style="display:none"><a href="/sci_redir.php?doi=10.1590%2FS0104-14281998000300007" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1590/S0104-14281998000300007'); alert('Copied the doi');">copy doi</a> <small>(10.1590/S0104-14281998000300007)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_4')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="http://repositorio.unp.edu.pe/bitstream/20.500.12676/3323/1/IPET-ADR-GUT-2021.pdf" target="_blank" rel="nofollow">Análisis económico de los problemas de emulsión con respecto a la productividad de sus pozos en el lote VIII</a> <b><a href="http://repositorio.unp.edu.pe/bitstream/20.500.12676/3323/1/IPET-ADR-GUT-2021.pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 2021 </span><br><span class="r_content">Las emulsiones se encuentran a lo largo de la cadena productiva de los hidrocarburos. Una emulsión puede tener un impacto positivo o negativo sobre la producción y sobre los costos asociados a su tratamiento con el propósito de cumplirlos requerimientos ...</span><br><span class="r_sub"><i>Adrianzén Gutiérrez, Milagros Viviana</i></span><br><small><a href="https://core.ac.uk/works/124301855" target="_blank" rel="nofollow" title="core.ac.uk/works/124301855">core</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_6" style="display:none">, Bibian Alonso Hoyos-Madrigal, Wilson Antonio Cañas-Marín</span> <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_6')">+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"><p class="r_title"><a href="https://doi.org/10.1590/S0100-40422011000300011" target="_blank" rel="nofollow">Estudo da influência dos particulados no fenômeno de agregação dos asfaltenos por espectrometria de varredura óptica</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Química Nova</i>, 2011 </span><br><span class="r_content">The processing of national petroleums causes many operational problems due to the asphaltene aggregation phenomena. To evaluate the behavior of these phenomena, a study based on optical scan technique was carried out to understand the behavior of pure ...</span><br><span class="r_sub"><i>Claudete Bernardo Henriques<span id="ma_7" style="display:none">, Alessandra Winter, Erika Tomie Koroishi, Rubens Maciel Filho, Maria Izabel Maretti Silveira Bueno</span> <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_7')">+4 more</a></small></i></span><br><small><a href="https://doaj.org/article/73e5675bb41149c098554317fefc22b1" target="_blank" rel="nofollow" title="doaj.org/article/73e5675bb41149c098554317fefc22b1">doaj</a> </small> <div id="more_7" style="display:none"><a href="/sci_redir.php?doi=10.1590%2FS0100-40422011000300011" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1590/S0100-40422011000300011'); alert('Copied the doi');">copy doi</a> <small>(10.1590/S0100-40422011000300011)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_7')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://repositorio.unal.edu.co/bitstream/unal/24939/1/10723-21241-1-PB.pdf" target="_blank" rel="nofollow">Licuefacción de carbón del cerrejón utilizando breas hidrogenadas como solvente donor de hidrógeno</a> <b><a href="https://repositorio.unal.edu.co/bitstream/unal/24939/1/10723-21241-1-PB.pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 1985 </span><br><span class="r_content">Carbón del Cerrejón y breas hidrogenadas se someten a interacción a 440°C y tiempos de residencia de 10, 30, 60 minutos. Los resultados muestran que la brea Ashland 240 hidrogenada es mejor solvente que el Aceite Antracénico hidrogenado y demás breas ...</span><br><span class="r_sub"><i>Rincón, José María, Jiménez, Arturo</i></span><br><small><a href="https://core.ac.uk/works/25402528" target="_blank" rel="nofollow" title="core.ac.uk/works/25402528">core</a> </small> <br></div><div class="r"><p class="r_title"><a href="" target="_blank" rel="nofollow">Chemical characterization of the asphaltenes from colombian colorado light 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">, 2016 </span><br><span class="r_content">In the present work, we report the chemical characterization of asphaltenes from a light Colombian crude oil, 36° API, Colorado Crude Oil (CCO). Asphaltenes of CCO were extracted using the standard ASTM procedure, ASTM D6560-12.</span><br><span class="r_sub"><i>Poveda, Juan Carlos<span id="ma_9" style="display:none">, Bohorques-Toledo, Natalia-Alexandra, Torres, Mary-Helena, Molina Velasco, Daniel, Ariza León, Emiliano</span> <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_9')">+4 more</a></small></i></span><br><small><a href="https://core.ac.uk/works/141198305" target="_blank" rel="nofollow" title="core.ac.uk/works/141198305">core</a> </small> <br></div><div class="r"><p class="r_title"><a href="https://repositorio.unal.edu.co/bitstream/unal/55429/1/1020414792.2015.pdf" target="_blank" rel="nofollow">Coke formation during thermal cracking of a heavy crude oil</a> <b><a href="https://repositorio.unal.edu.co/bitstream/unal/55429/1/1020414792.2015.pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 2015 </span><br><span class="r_content">A pseudo-mechanism for the production of coke during the thermal cracking of a Colombian heavy crude oil was proposed based on thermal cracking experiments carried out at TGA and at horizontal tube furnace at atmospheric conditions.</span><br><span class="r_sub"><i>Urán Castaño, Laura Cristina</i></span><br><small><a href="https://core.ac.uk/works/25392940" target="_blank" rel="nofollow" title="core.ac.uk/works/25392940">core</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-asfaltenos/" class="suggestion"onclick="show_loader();"><b>asfaltenos</b></a><br/><a href="/q-asphaltenes/" class="suggestion"onclick="show_loader();"><b>asphaltenes</b></a><br/><a href="/q-floculaci%C3%B3n/" class="suggestion"onclick="show_loader();"><b>floculación</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-sara/" class="suggestion"onclick="show_loader();"><b>sara</b></a><br/><a href="/q-resist%C3%AAncia_%C3%A0_compress%C3%A3o/" class="suggestion"onclick="show_loader();"><b>resistência à compressão</b></a><br/><a href="/q-ft-ir/" class="suggestion"onclick="show_loader();"><b>ft-ir</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-gpc/" class="suggestion"onclick="show_loader();"><b>gpc</b></a><br/><a href="/q-vpo/" class="suggestion"onclick="show_loader();"><b>vpo</b></a><br/><a href="/q-eficiencia_de_dispersi%C3%B3n/" class="suggestion"onclick="show_loader();"><b>eficiencia de dispersión</b></a><br/></div></div></div><div class="pagenav"><a href="/q-asf%C3%A1ltenos/p-3/" rel="nofollow"><b>previous</b></a> <a href="/q-asf%C3%A1ltenos/p-2/" rel="nofollow">2</a> <a href="/q-asf%C3%A1ltenos/p-3/" rel="nofollow">3</a> <b>4</b> <a href="/q-asf%C3%A1ltenos/p-5/" rel="nofollow">5</a> <a href="/q-asf%C3%A1ltenos/p-6/" rel="nofollow">6</a> <a href="/q-asf%C3%A1ltenos/p-5/" id="next" rel="nofollow"><b>next</b></a> </div><br></div>
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