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DTSTART:20150326T090000
DTEND:20150326T100000
SUMMARY:CERE-seminar by Susana Almeida
DESCRIPTION:<strong></strong>\n<h2>&ldquo;Gas Permeability and Solubility in Polymers for Offshore Applications&rdquo;</h2>\n<strong><br />\n</strong>\n<p style="margin: 0cm 0cm 0pt;"><strong><span>Abstract:</span></strong></p>\n<p style="margin: 0cm 0cm 0pt;"><strong><span>&nbsp;</span></strong></p>\n<p style="margin: 0cm 0cm 0pt; text-align: justify;"><span>Presently, CO<sub>2</sub> is recurrently used in the gas and oil industry, being injected in geological reservoirs as a method to recover gas from a reservoir or to enhancement oil recovery (EOR). But is important, as well, keep the CO<sub>2</sub> away from the atmosphere because the greenhouse effect, one of the actual solutions is store CO<sub>2</sub> in saline aquifers. Independent of the use of CO<sub>2</sub> is the need to transport it. NOV (National Oilwell Varco) manufacture flexible pipelines for offshore transport of fluids in deep water conditions. A flexible pipeline consists in several layers, where the so-called inner polymer liner provides the barrier to the egress of the gas being transported. Inside the pipeline the gas is transported at extreme conditions of temperature and pressure, within the range of the supercritical stage (e.g. 90 </span><span>˚</span><span>C and 650 bar).</span></p>\n<p style="margin: 0cm 0cm 0pt; text-align: justify;"><span>The study and optimization of these pipelines systems is an experimental challenge that requires the acquisition of some thermodynamics and transport properties of supercritical gases: solubility and permeability of the polymer/gas system as function of pressure and temperature. In this work, two different apparatus systems are used to test determine the key properties of the gas/polymer system: a Magnetic Suspension Balance (MSB), to determine the solubility, and a 2-D permeation cell, to measure the permeability. The measurements were performed with three different polymers, PVDF, XLPE and PA11, while using pure CO<sub>2</sub> and its mixture with methane (90/10) at different conditions of pressure and temperature.</span></p>\n<p style="margin: 0cm 0cm 0pt; text-align: justify;"><span>These results, obtained under collaboration with NOV as industrial partner, have direct impact in the safety and operating conditions of gas transport in flexible pipelines.</span></p>
X-ALT-DESC;FMTTYPE=text/html:<strong></strong>\n<h2>&ldquo;Gas Permeability and Solubility in Polymers for Offshore Applications&rdquo;</h2>\n<strong><br />\n</strong>\n<p style="margin: 0cm 0cm 0pt;"><strong><span>Abstract:</span></strong></p>\n<p style="margin: 0cm 0cm 0pt;"><strong><span>&nbsp;</span></strong></p>\n<p style="margin: 0cm 0cm 0pt; text-align: justify;"><span>Presently, CO<sub>2</sub> is recurrently used in the gas and oil industry, being injected in geological reservoirs as a method to recover gas from a reservoir or to enhancement oil recovery (EOR). But is important, as well, keep the CO<sub>2</sub> away from the atmosphere because the greenhouse effect, one of the actual solutions is store CO<sub>2</sub> in saline aquifers. Independent of the use of CO<sub>2</sub> is the need to transport it. NOV (National Oilwell Varco) manufacture flexible pipelines for offshore transport of fluids in deep water conditions. A flexible pipeline consists in several layers, where the so-called inner polymer liner provides the barrier to the egress of the gas being transported. Inside the pipeline the gas is transported at extreme conditions of temperature and pressure, within the range of the supercritical stage (e.g. 90 </span><span>˚</span><span>C and 650 bar).</span></p>\n<p style="margin: 0cm 0cm 0pt; text-align: justify;"><span>The study and optimization of these pipelines systems is an experimental challenge that requires the acquisition of some thermodynamics and transport properties of supercritical gases: solubility and permeability of the polymer/gas system as function of pressure and temperature. In this work, two different apparatus systems are used to test determine the key properties of the gas/polymer system: a Magnetic Suspension Balance (MSB), to determine the solubility, and a 2-D permeation cell, to measure the permeability. The measurements were performed with three different polymers, PVDF, XLPE and PA11, while using pure CO<sub>2</sub> and its mixture with methane (90/10) at different conditions of pressure and temperature.</span></p>\n<p style="margin: 0cm 0cm 0pt; text-align: justify;"><span>These results, obtained under collaboration with NOV as industrial partner, have direct impact in the safety and operating conditions of gas transport in flexible pipelines.</span></p>

URL:https://www.cere.dtu.dk/da/Calendar/2015/03/CERE-seminar-by-Susana-Almeida
DTSTAMP:20260612T020600Z
UID:{E8B8CAA7-A069-46E4-86AD-DEC8B1CDE168}-20150326T090000-20150326T090000
LOCATION: DTU-Chemical Engineering, Building 229 room 003
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