Novel Alkyl-Amine Surfactants for CO<sub>2</sub> Emulsion Assisted Enhanced Oil Recovery

Cui, Liang; Dubos, Fabienne; Bourrel, M.

doi:10.1021/acs.energyfuels.8b01555

Cited by 17 publications

(2 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, the derivatives of DMAPA have previously been demonstrated to possess higher absorption capacities, faster kinetics and lower energy requirements than monoamines 28,29 . C12-DMAPA, a derivative of DMAPA, was synthesized with a longer alkyl chain to balance the CO2 responsive system by increasing the hydrophobicity and increasing the CO2 emulsion 30 . Testing C12-DMAPA with a mixed methanogenic culture as in the setup as MDEA showed full inhibition of the CO2 and H2 conversion into CH4 within a concentration range of 20 mM to 100 mM.…”

Section: Screening For Alternative Amine Systemsmentioning

confidence: 99%

Flue-to-Fuel: Biomediated carbon capture and utilization of dilute CO2 gas streams to biomethane

Sieborg

Ottosen

2023

Preprint

View full text Add to dashboard Cite

Capturing anthropogenic carbon dioxide (CO2) and utilizing it as a feedstock for chemical production has been identified as an essential step towards mitigating climate change. The most dominant CO2 emissions originate from flue gases that contain diluted concentrations of CO2 emitted from combustion and industrial processes. Conventional capture technologies such as amine scrubbing are impeded by their high energy demand due to the thermodynamically low driving force for desorbing CO2. A new concept is here presented that exploits the robustness of microbial catalysts to simultaneously desorb the CO2 from an amine-based absorbent and convert the captured CO2 to biomethane (CH4) in a single step by the use of renewable hydrogen. The concept combines carbon capture with that of power-to-methane, to hereby abate CO2 emissions and use the captured CO2 as a resource. Experimental results of the conceptual design in batch reactors demonstrated high microbial biocompatibility with amine methyl diethanolamine (MDEA). The biocompatibility was examined in the range of 0 – 500 mM MDEA, and the system demonstrated almost full bioavailability of the absorbed CO2 until 120 mM of MDEA. Within this range, the CH4 productivity ranged from 40.7 - 63.6 NmLCH4 L-1culture h-1 from synthetically absorbed CO2 with a maximum conversion 1.77 times higher than traditional biomethanation with gaseous CO2. Conversion of raw flue gas from a biogas engine resulted in only a slight decrease in conversion efficiency compared to that of pure gasses, which demonstrated that the concept has high robustness to the impurities and oxygen present in raw flue gas.

show abstract

Section: Screening For Alternative Amine Systemsmentioning

confidence: 99%

Flue-to-Fuel: Biomediated carbon capture and utilization of dilute CO2 gas streams to biomethane

Sieborg

Ottosen

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…NP-stabilized Pickering emulsions have attracted a great deal of attention due to their wide availability, low cost, and high stability, as well as the dramatic decrease in the surfactant dosage required. Different types and shapes of NPs for responsive Pickering emulsions have been developed, as well as being used with polymers and surfactants. − …”

Section: Introductionmentioning

confidence: 99%

Phase Inversion of Pickering Emulsions by Electrolyte for Potential Reversible Water-in-Oil Drilling Fluids

Liu

Zhou

et al. 2020

Energy Fuels

View full text Add to dashboard Cite

Pickering emulsions show great potential for the petroleum industry, especially those that can realize emulsion inversion in basic conditions. Developing a simple and green approach to control emulsion inversion in basic conditions is highly desirable for harsh conditions and complicated operations. Here we report novel phase inversion of a Pickering emulsion through the controlled wettability of silica nanoparticles (NPs) by N-(2-((2-aminoethyl)amino)ethyl)octadecenamide (C 18 PDA) with Na 2 CO 3 salt addition. A transitional phase inversion from an oil-in-water (O/W) emulsion to a water-in-oil (W/O) emulsion occurs with increasing C 18 PDA surfactant concentration for a given amount of Na 2 CO 3 salt. A subsequent phase inversion from a W/O emulsion to an O/W emulsion then occurs with increasing Na 2 CO 3 salt concentration at a low amount of C 18 PDA surfactant, and demulsification occurs when the Na 2 CO 3 salt concentration is above 94 mM. The stable W/O Pickering emulsions are formed by virtue of adsorption of the C 18 PDA surfactant onto the silica surfaces, which imparts hydrophobicity to the inherently hydrophilic silica NPs and facilitates strong flocculation of the silica particles in the polar solution. However, the hydrophobicity of the silica NPs is reduced by salinity and is suitable for creating O/W emulsions due to the reduced interactions between the NPs and the C 18 PDA surfactant. The possible mechanism for emulsion inversion was investigated by characterizing turbidity, surface tension, contact angle, Fourier transform infrared spectroscopy with thermogravimetric analysis, zeta potentials, etc. The rheological properties of the reversible Pickering emulsion show that there is a smooth transition at the transitional inversion point, which differs from conventional surfactant-stabilized emulsions, in which the viscosity decreases to the minimum at the transitional inversion point. The emulsion phase inversion was also found to be conducive to improving the efficiency of filter-cakes cleanup. We anticipate this smart system to be easily operated and environmentally friendly, making it potentially applicable to real oil fields.

show abstract

Unique Solubility of Switchable Alkyl‐Amine Surfactants in Water

Cui

Lagorse

Bourrel

2019

J Surfact & Detergents

View full text Add to dashboard Cite

Because many amine surfactants are soluble in both water and CO2 phases, they attract interest with regard to stabilizing CO2‐in‐water dispersion systems. In our recent research, we find that the solubility of alkyl‐amine surfactant in water can be significantly enhanced by salts, even though the salts are usually “salting‐out” to other surfactants. The influence of various anions (NO3−, Br−, Cl−, and SO42−) and cations (Na+, Ca2+, and Mg2+) on the alkyl‐amine surfactants is investigated. The results are contrary to Hofmeister series and show that all the anions can enhance the solubility (salting‐in) in the order of: NO3− > Br− > Cl− > SO42−, while the impact of the cations is insignificant. A physical–chemistry model based on the switchable property of the surfactant is proposed and well explains the experimental results. Therefore, the switchable alkyl‐amine surfactants have potential to be applied under high‐salinity and high‐temperature conditions, for example, in enhanced oil recovery processes for a hot and salty carbonate reservoir.

show abstract

Novel Alkyl-Amine Surfactants for CO₂ Emulsion Assisted Enhanced Oil Recovery

Cited by 17 publications

References 52 publications

Flue-to-Fuel: Biomediated carbon capture and utilization of dilute CO2 gas streams to biomethane

Flue-to-Fuel: Biomediated carbon capture and utilization of dilute CO2 gas streams to biomethane

Phase Inversion of Pickering Emulsions by Electrolyte for Potential Reversible Water-in-Oil Drilling Fluids

Unique Solubility of Switchable Alkyl‐Amine Surfactants in Water

Contact Info

Product

Resources

About

Novel Alkyl-Amine Surfactants for CO2 Emulsion Assisted Enhanced Oil Recovery

Cited by 17 publications

References 52 publications

Flue-to-Fuel: Biomediated carbon capture and utilization of dilute CO2 gas streams to biomethane

Flue-to-Fuel: Biomediated carbon capture and utilization of dilute CO2 gas streams to biomethane

Phase Inversion of Pickering Emulsions by Electrolyte for Potential Reversible Water-in-Oil Drilling Fluids

Unique Solubility of Switchable Alkyl‐Amine Surfactants in Water

Contact Info

Product

Resources

About

Novel Alkyl-Amine Surfactants for CO₂ Emulsion Assisted Enhanced Oil Recovery