BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//DTU.dk//NONSGML DTU.dk//EN
CALSCALE:GREGORIAN
BEGIN:VEVENT
DTSTART:20150312T090000
DTEND:20150312T100000
SUMMARY:CERE-seminar by Fragkiskos Tzirakis
DESCRIPTION:<h2 style="margin: 0cm 0cm 0pt; text-align: left;"><strong><span style="color: blue;">&ldquo;</span></strong><strong><span style="color: blue;">Hydrate equilibrium data for CO<sub>2</sub>+N<sub>2</sub> mixtures with </span></strong><strong><span style="color: blue;">pressure reduction chemicals&rdquo;</span></strong></h2>\n<br />\n<p class="Head1" style="margin: 0cm 0cm 0pt;"><span><strong>Abstract<br />\n</strong></span><span><strong>&nbsp;</strong></span></p>\n<p style="margin: 0cm 0cm 6pt; text-align: justify;"><span>Carbon Dioxide</span><span style="color: black;"> </span><span>capture and sequestration (CCS) is nowadays an important area of research for alleviating CO<sub>2</sub> emissions worldwide</span><span class="hps" style="color: black;">.</span><span style="color: black;"> <span class="hps">Hydrates can become of great importance as they</span> <span class="hps">form the basis for</span> <span class="hps">a new technology</span> that concerns <span class="hps">CO<sub>2 </sub>capture</span> <span class="hps">from</span> <span class="hps">flue gases</span> <span class="hps">(</span>hydrate crystallization). In this work hydrate equilibrium data<span class="hps"> measured at the Centre</span> Thermodynamic of Processes in MINES ParisTech<span class="hps"> (France) are presented as part of a collaborative project funded by the Danish Technical Research Council.<em> </em></span></span></p>\n<p style="margin: 0cm 0cm 6pt; text-align: justify;"><span>In this study experimental results for hydrate dissociation with several promoters are presented. The isochoric method is used to determine the gas hydrate dissociation points. Different CO<sub>2</sub>+N<sub>2</sub> gas mixtures were used with presence of promoters such as tetra-butylammonium bromide (TBAB), tetra-butylammonium fluoride (TBAF), cyclopentane (CP) and mixtures of TBAB and TBAF with CP. <span style="color: black;">The combination of TBA halides with CP was inspired by </span>[1]<span style="color: black;"> as it came out synergetic effect that enhances promotion between TBAB (5 wt %) and CP (5 vol %) in CO<sub>2</sub>/H<sub>2</sub> (38.6/61.4) gas mixture. The results have shown clearly synergetic effect for 20% w/w TBAB+CP (5 vol %) in CO<sub>2</sub>/N<sub>2</sub> (6.87/93.13) gas mixture. </span>Moreover, experimental uncertainties for temperature, pressure, and molar composition are also presented.</span></p>\n<p style="margin: 12pt 0cm 6pt;"><strong><span style="color: black;">Reference<br />\n<br />\n</span></strong><span style="color: black;">[1] </span><span>Li X.-S., Xia Z.-M., Chen Z.-Y., Wu H.-J., </span><span>Energy Fuels, 2011, 25,</span><span> </span><span>1302&ndash;1309.</span></p>\n&nbsp;<br />
X-ALT-DESC;FMTTYPE=text/html:<h2 style="margin: 0cm 0cm 0pt; text-align: left;"><strong><span style="color: blue;">&ldquo;</span></strong><strong><span style="color: blue;">Hydrate equilibrium data for CO<sub>2</sub>+N<sub>2</sub> mixtures with </span></strong><strong><span style="color: blue;">pressure reduction chemicals&rdquo;</span></strong></h2>\n<br />\n<p class="Head1" style="margin: 0cm 0cm 0pt;"><span><strong>Abstract<br />\n</strong></span><span><strong>&nbsp;</strong></span></p>\n<p style="margin: 0cm 0cm 6pt; text-align: justify;"><span>Carbon Dioxide</span><span style="color: black;"> </span><span>capture and sequestration (CCS) is nowadays an important area of research for alleviating CO<sub>2</sub> emissions worldwide</span><span class="hps" style="color: black;">.</span><span style="color: black;"> <span class="hps">Hydrates can become of great importance as they</span> <span class="hps">form the basis for</span> <span class="hps">a new technology</span> that concerns <span class="hps">CO<sub>2 </sub>capture</span> <span class="hps">from</span> <span class="hps">flue gases</span> <span class="hps">(</span>hydrate crystallization). In this work hydrate equilibrium data<span class="hps"> measured at the Centre</span> Thermodynamic of Processes in MINES ParisTech<span class="hps"> (France) are presented as part of a collaborative project funded by the Danish Technical Research Council.<em> </em></span></span></p>\n<p style="margin: 0cm 0cm 6pt; text-align: justify;"><span>In this study experimental results for hydrate dissociation with several promoters are presented. The isochoric method is used to determine the gas hydrate dissociation points. Different CO<sub>2</sub>+N<sub>2</sub> gas mixtures were used with presence of promoters such as tetra-butylammonium bromide (TBAB), tetra-butylammonium fluoride (TBAF), cyclopentane (CP) and mixtures of TBAB and TBAF with CP. <span style="color: black;">The combination of TBA halides with CP was inspired by </span>[1]<span style="color: black;"> as it came out synergetic effect that enhances promotion between TBAB (5 wt %) and CP (5 vol %) in CO<sub>2</sub>/H<sub>2</sub> (38.6/61.4) gas mixture. The results have shown clearly synergetic effect for 20% w/w TBAB+CP (5 vol %) in CO<sub>2</sub>/N<sub>2</sub> (6.87/93.13) gas mixture. </span>Moreover, experimental uncertainties for temperature, pressure, and molar composition are also presented.</span></p>\n<p style="margin: 12pt 0cm 6pt;"><strong><span style="color: black;">Reference<br />\n<br />\n</span></strong><span style="color: black;">[1] </span><span>Li X.-S., Xia Z.-M., Chen Z.-Y., Wu H.-J., </span><span>Energy Fuels, 2011, 25,</span><span> </span><span>1302&ndash;1309.</span></p>\n&nbsp;<br />

URL:https://www.cere.dtu.dk/calendar/2015/03/cere-seminar-by-fragkiskos-tzirakis
DTSTAMP:20260520T061800Z
UID:{C731CE74-A399-48A0-83DD-296143A5BB15}-20150312T090000-20150312T090000
LOCATION: DTU - Chemical Engineering, Building 229 room 003
END:VEVENT
END:VCALENDAR