An Evaluation of Graphene Oxides as Possible Foam Stabilizing Agents for CO2 Based Enhanced Oil Recovery

Graphene oxide, nanographene oxide and partially reduced graphene oxide have been studied as possible foam stabilizing agents for CO2 based enhanced oil recovery. Graphene oxide was able to stabilize CO2/synthetic sea water foams, while nanographene oxide and partially reduced graphene oxide were not able to stabilize foams. The inability of nanographene oxide for stabilizing foams was explained by the increase of hydrophilicity due to size decrease, while for partially reduced graphene oxide, the high degree of reduction of the material was considered to be the reason. Graphene oxide brine dispersions showed immediate gel formation, which improved foam stability. Particle growth due to layer stacking was also observed. This mechanism was detrimental for foam stabilization. Gel formation and particle growth caused these particles to block pores and not being filterable. The work indicates that the particles studied are not suitable for CO2 enhanced oil recovery purposes.

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Graphene Oxide as Foam Stabilizing Agent for CO2 EOR

10.20944/preprints201806.0154.v1 ◽

2018 ◽

Author(s):

Albert Barrabino ◽

Torleif Holt ◽

Erik Lindeberg

Keyword(s):

Particle Size ◽

Graphene Oxide ◽

Oil Recovery ◽

Sea Water ◽

Foam Stability ◽

Particle Growth ◽

Foam Formation ◽

Material Particle ◽

Stabilizing Agents ◽

Layer Stacking

Graphene oxide (GO), nanographene oxide (nGO) and partially reduced graphene oxide (rGO) have been studied as possible foam stabilizing agents for CO2 based enhanced oil recovery (EOR). GO was able to stabilize CO2/synthetic sea water foams. rGO was not able to stabilize foams likely due to the high reduction degree of the material. Particle size had a strong influence on foamability and stability. GO hydrophilicity increased as the particle size decreased and no foams were created when particle size was below 1 µm (nGO). GO brine dispersions showed immediate gel formation, which improved foam stability. Particle growth due to layer stacking was also observed. This mechanism was detrimental for foam formation and stabilization. nGO dispersed in synthetic sea water rapidly formed hydrogels and was not filterable. This work indicates that the particles studied are not suitable for CO2 EOR purposes.

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Polyacrylonitrile modified partially reduced graphene oxide composites for the extraction of Hg(II) ions from polluted water

Journal of Materials Science ◽

10.1007/s10853-021-05797-2 ◽

2021 ◽

Vol 56 (13) ◽

pp. 7982-7999

Author(s):

Fathi S. Awad ◽

Khaled M. AbouZied ◽

Ayyob M. Bakry ◽

Weam M. Abou El-Maaty ◽

Ahmad M. El-Wakil ◽

...

Keyword(s):

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Polluted Water ◽

Reduced Graphene ◽

Partially Reduced Graphene Oxide ◽

Oxide Composites

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Correction: Multi-porous Co3O4 nanoflakes@sponge-like few-layer partially reduced graphene oxide hybrids: towards highly stable asymmetric supercapacitors

Journal of Materials Chemistry A ◽

10.1039/c7ta90117h ◽

2017 ◽

Vol 5 (24) ◽

pp. 12578-12578

Author(s):

Mohammad Qorbani ◽

Tsu-chin Chou ◽

Yi-Hsin Lee ◽

Satyanarayana Samireddi ◽

Naimeh Naseri ◽

...

Keyword(s):

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Asymmetric Supercapacitors ◽

Reduced Graphene ◽

Partially Reduced Graphene Oxide

Correction for ‘Multi-porous Co3O4 nanoflakes@sponge-like few-layer partially reduced graphene oxide hybrids: towards highly stable asymmetric supercapacitors’ by Mohammad Qorbani et al., J. Mater. Chem. A, 2017, DOI: 10.1039/c7ta00694b.

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