Soybean-Oil-Based CO2-Switchable Surfactants with Multiple Heads

Huang, Hui‐Yu; Huang, Xiaoling; Quan, Hongping; Su, Xin

doi:10.3390/molecules26144342

Cited by 6 publications

(5 citation statements)

References 24 publications

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“…First the density of the solution was measured with a density bar, then the platinum ring was immersed into the aqueous solution, and then crude oil was added on the upper layer of the aqueous solution. When the ring slowly rose to the oil-water interface, the instrument automatically started to record its interfacial tension value, which was recorded every 60 s. The final interfacial tension value was the average of the 10 values read (Huang et al, 2021).…”

Section: Preparation Of Surfactant Solutionsmentioning

confidence: 99%

“…Moore and co‐workers (Moore, 1986) employed sodium oleate as a surfactant for the first time in emulsion polymerization of styrene, and then used CO 2 to demulsify polystyrene latex. Anionic CO 2 ‐switchable surfactants provide fresh approaches for emulsification and transportion for heavy crude oil (Huang et al, 2021). However, the vast majority of CO 2 ‐switchable surfactants have limited biodegradability and possible environmental effect.…”

Section: Introductionmentioning

confidence: 99%

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Lauroyl arginate ethyl: A novel bio‐based CO₂‐switchable surfactant

Chen

Luan

Lei

et al. 2023

J Surfact & Detergents

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For switchable surfactant to be reusable, its property must be activated by a stimulus after it has been utilized. Nonetheless, a plenty of switchable surfactants are environmentally harmful tertiary amines. This study investigates the biocompatible amino acid derivatives, lauroyl arginate ethyl (LAE) as a new biodegradable CO2‐switchable surfactant. In the study, LAE was prepared and its structure was characterized. The variation of pH value was measured to determine the responsiveness to CO2. The surface tension and interfacial tension were measured to determine the surface activity of the material. Finally, CO2 and N2 were injected into the solution to determine reversible emulsification of emulsion. Not only does the LAE have reversible emulsification capacity, but it is also non‐toxic and biodegradable. In the future, its applications in everyday life and industry will expand.

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Section: Preparation Of Surfactant Solutionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lauroyl arginate ethyl: A novel bio‐based CO₂‐switchable surfactant

Chen

Luan

Lei

et al. 2023

J Surfact & Detergents

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“…In recent years, the research direction of CO 2 -switchable surfactants has started to shift toward tertiary amine structures due to their mild reaction conditions and high reversible efficiency. An oligomeric surfactant (Huang et al, 2021) that can be converted by CO 2 was synthesized using epoxidized soybean oil modified with a tertiary amine group. The surfactant was found to exhibit a notable decrease in viscosity following CO 2 introduction.…”

Section: Introductionmentioning

confidence: 99%

Dimer acid used as CO₂‐responsive surfactant for reducing viscosity of heavy crude oil

He,

Luan,

Guan

et al. 2023

J Surfact & Detergents

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The efficacy of CO2‐switchable surfactants in reducing viscosity of heavy crude oil has received widespread attention due to its switchable surface activity for constructing reversible emulsion. However, the intricate synthesis processes of these surfactants pose a significant challenge in their practical application. The present investigation involved the preparation of surfactants that are responsive to CO2, specifically dimer acid (DA)/tetramethylpropylenediamine (TMPDA), through a facile mixing approach. These surfactants were subsequently employed to mitigate the high viscosity of heavy crude oil. The study employed a surface tension meter to examine the surface behavior of DA/TMPDA, which demonstrated the potential for reducing viscosity. The study examined the CO2 responsiveness of DA/TMPDA through the application of alternating CO2 and N2. It confirmed the reversible CO2 responsiveness of the surface activator. The results from the emulsification and viscosity reduction assessments suggest that the amalgamation of DA and TMPDA in a 1:1 molar ratio yielded a surfactant. This surfactant demonstrated favorable stability in water and heavy crude oil emulsions, as well as low viscosity and rapid emulsion breaking upon exposure to CO2. This investigation demonstrates that it is feasible to produce surfactants that are responsive to CO2 and possess the ability to reduce viscosity through a straightforward mixing process. This presents a viable approach to utilizing oligomeric surfactants that are CO2‐responsive for the purposes of emulsifying and breaking down heavy crude oil.

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“…Zhou et al prepared a CO 2 -switchable polymer surfactant through the copolymerization of AM and DMAEMA, which was used to reduce the viscosity of heavy oil [ 1 ]. Huang and co-workers prepared a CO 2 -switchable oligomeric surfactant by using epoxidized soybean oil, which is proven to have an obvious viscosity reduction effect after sparging CO 2 [ 24 ]. Although the properties of oligomeric surfactants were noted to be adjustable, they required efficient synthesis prior to application.…”

Section: Introductionmentioning

confidence: 99%

Application of CO2-Switchable Oleic-Acid-Based Surfactant for Reducing Viscosity of Heavy Oil

Liu

Tang

et al. 2021

Molecules

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CO2-switchable oligomeric surfactants have good viscosity-reducing properties; however, the complex synthesis of surfactants limits their application. In this study, a CO2-switchable “pseudo”-tetrameric surfactant oleic acid (OA)/cyclic polyamine (cyclen) was prepared by simple mixing and subsequently used to reduce the viscosity of heavy oil. The surface activity of OA/cyclen was explored by a surface tensiometer and a potential for viscosity reduction was revealed. The CO2 switchability of OA/cyclen was investigated by alternately introducing CO2 and N2, and OA/cyclen was confirmed to exhibit a reversible CO2-switching performance. The emulsification and viscosity reduction analyses elucidated that a molar ratio of OA/cyclen of 4:1 formed the “pseudo”-tetrameric surfactants, and the emulsions of water and heavy oil with OA/cyclen have good stability and low viscosity and can be destabilized quickly by introducing CO2. The findings reported in this study reveal that it is feasible to prepare CO2-switchable pseudo-tetrameric surfactants with viscosity-reducing properties by simple mixing, thus providing a pathway for the emulsification and demulsification of heavy oil by using the CO2-switchable “pseudo”-oligomeric surfactants.

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Soybean-Oil-Based CO2-Switchable Surfactants with Multiple Heads

Cited by 6 publications

References 24 publications

Lauroyl arginate ethyl: A novel bio‐based CO₂‐switchable surfactant

Lauroyl arginate ethyl: A novel bio‐based CO₂‐switchable surfactant

Dimer acid used as CO₂‐responsive surfactant for reducing viscosity of heavy crude oil

Application of CO2-Switchable Oleic-Acid-Based Surfactant for Reducing Viscosity of Heavy Oil

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Soybean-Oil-Based CO2-Switchable Surfactants with Multiple Heads

Cited by 6 publications

References 24 publications

Lauroyl arginate ethyl: A novel bio‐based CO2‐switchable surfactant

Lauroyl arginate ethyl: A novel bio‐based CO2‐switchable surfactant

Dimer acid used as CO2‐responsive surfactant for reducing viscosity of heavy crude oil

Application of CO2-Switchable Oleic-Acid-Based Surfactant for Reducing Viscosity of Heavy Oil

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Product

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About

Lauroyl arginate ethyl: A novel bio‐based CO₂‐switchable surfactant

Lauroyl arginate ethyl: A novel bio‐based CO₂‐switchable surfactant

Dimer acid used as CO₂‐responsive surfactant for reducing viscosity of heavy crude oil