Results 11 to 20 of about 54 (43)
Estabilización de fibras de brea de carbón
Revista Colombiana de Química, 2010 A partir de una brea de Paz del Río se prepararon cuatro breas con diferente contenido de aceites, asfáltenos, preasfaltenos e inertes. Se hilaron, estabilizaron y carbonizaron a 750 °C.Helda A. De López, Mauricio Florián, William Garzón +2 moredoaj 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_7" style="display:none">, J CÁCERES, G VELA, H BUENO</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/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://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_8" 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_8')">+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_9" style="display:none">, Gaspar González, Elizabete F. Lucas</span> <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_9')">+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_9" 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_9')">+1 more source</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_10" 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_10')">+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_10" 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_10')">+1 more source</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-agregados/" class="suggestion"onclick="show_loader();"><b>agregados</b></a><br/><a href="/q-crudos_pesados/" class="suggestion"onclick="show_loader();"><b>crudos pesados</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-vpo/" class="suggestion"onclick="show_loader();"><b>vpo</b></a><br/><a href="/q-inestabilidad_coloidal/" class="suggestion"onclick="show_loader();"><b>inestabilidad coloidal</b></a><br/><a href="/q-gpc/" class="suggestion"onclick="show_loader();"><b>gpc</b></a><br/></div></div></div><div class="pagenav"><a href="/q-asf%C3%A1ltenos/" rel="nofollow"><b>previous</b></a> <a href="/q-asf%C3%A1ltenos/" rel="nofollow">1</a> <b>2</b> <a href="/q-asf%C3%A1ltenos/p-3/" rel="nofollow">3</a> <a href="/q-asf%C3%A1ltenos/p-4/" rel="nofollow">4</a> <a href="/q-asf%C3%A1ltenos/p-5/" rel="nofollow">5</a> <a href="/q-asf%C3%A1ltenos/p-3/" id="next" rel="nofollow"><b>next</b></a> </div><br></div>
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