Extraction of heavy oil by supercritical carbon dioxide

Svetlana Nikolayevna Rudyk, Pavel Spirov, Erik Gydesen Søgaard

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskning

Abstract

The present study deals with the extraction of heavy oil by supercritical carbon dioxide at the pressure values changing from 16 to 56 MPa at the fixed value of temperature: 60oC. The amount of the recovered liquid phase of oil was calculated as a percentage of the extracted amount to the initial 40 gm of oil. The noticeable breackover point in the graph of the oil recovery versus pressure was observed at 27 MPa, which was in concordance with the conclusions from chromatographic analysis of the extracted oil samples. But the recovery rate of 14 % at this pressure value was not high enough to apply it for the efficient displacement of oil through CO2 injection. A much higher recovery rate of 48% for liquid phase and 27% for the gas phase was observed at the pressure of 56 MPa. That shows that supercritical CO2 can provide high recovery rates when applied to heavy oil, facilitating intermediate hydrocarbons in absence of light ones needed to reach miscibility.
OriginalsprogEngelsk
TitelMaterials of the 19th International Congress of Chemical and process Engineering CHISA 2010 ECCE7 : Summaries 2, Separation Processes
Publikationsdato2010
ISBN (Trykt)978-80-02-02247-3
StatusUdgivet - 2010
Begivenhed19th International Congress of Chemical and process Engineering CHISA 2010 and the 7th European Congress of Chemical Engineering ECCE-7 -
Varighed: 28 aug. 2010 → …

Konference

Konference19th International Congress of Chemical and process Engineering CHISA 2010 and the 7th European Congress of Chemical Engineering ECCE-7
Periode28/08/2010 → …

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