Effective viscosification of supercritical carbon dioxide by oligomers of 1-decene

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dc.citation.articleNumber104266
dc.citation.issueNumber5
dc.citation.journalTitleiScience
dc.citation.volumeNumber25
dc.contributor.authorKar, Taniya
dc.contributor.authorFiroozabadi, Abbas
dc.date.accessioned2022-05-25T17:37:41Z
dc.date.available2022-05-25T17:37:41Z
dc.date.issued2022
dc.description.abstractViscosification of carbon dioxide by polymers can make large scale CO2 sequestration safe and efficient. We present solubility of branched hydrocarbon oligomers in CO2 and viscosification measurements at relevant subsurface conditions. Polymers of 1-decene (P1D) with about 20 repeating units are found to be effective in CO2 viscosification, increasing it by 6.5-fold at 1.8 wt% concentration at 308 K and 31 MPa. We reason that methyl groups and branching promote solubility and viscosification. Low molecular weight oligomers can have lower solubility in CO2 than higher molecular weight ones and the trend in solubility is non-monotonic at constant pressure and temperature. Analysis of solubility trend of P1D oligomers in CO2 advances our understanding of molecular structure and functionality and opens the path to engineering of oligomers effective in viscosification and widespread use of CO2.
dc.identifier.citationKar, Taniya and Firoozabadi, Abbas. "Effective viscosification of supercritical carbon dioxide by oligomers of 1-decene." <i>iScience,</i> 25, no. 5 (2022) Cell Press: https://doi.org/10.1016/j.isci.2022.104266.
dc.identifier.digital1-s2-0-S2589004222005363-main
dc.identifier.doihttps://doi.org/10.1016/j.isci.2022.104266
dc.identifier.urihttps://hdl.handle.net/1911/112412
dc.language.isoeng
dc.publisherCell Press
dc.rightsThis is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/).
dc.titleEffective viscosification of supercritical carbon dioxide by oligomers of 1-decene
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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