Effect of number of oxypropylene on dynamic interfacial tensions of extended surfactants

Lv, Mengdie; Luo, Cong; Yang, Junhong; Zhou, Yongfeng; Liu, Changyao; Xu, Bin

doi:10.1016/j.colsurfa.2019.03.054

Cited by 19 publications

(2 citation statements)

References 29 publications

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“…The existence of micelles causes a sudden change in the surfactant solution’s physical properties after the CMC, slightly increasing surface tension and IFT. The presence of micelles further reduces the interfacial tension by increasing the surface area available for surfactant–oil interactions . The present system’s surface and interfacial tension properties are beneficial because Acacia concinna effectively lowers them.…”

Section: Resultsmentioning

confidence: 86%

“…The presence of micelles further reduces the interfacial tension by increasing the surface area available for surfactant−oil interactions. 44 The present system's surface and interfacial tension properties are beneficial because Acacia concinna effectively lowers them. Pyagi Phool and Ritha (Sapindus mukorossi Gaertn) are two frequently utilized natural surfactants that have been studied.…”

Section: Influence Of Acacia Concinna On the Interfacialmentioning

confidence: 88%

See 1 more Smart Citation

Characterization and Evaluation of the Rheological Behavior of a Natural Surfactant (Acacia concinna)

Dubey,

Majumder

2023

Ind. Eng. Chem. Res.

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Surfactants play an important role in the processes of improved oil recovery by reducing the interfacial tension (IFT) between oil and water. The application of surfactants in enhanced oil recovery (EOR) is primarily intended to mobilize and extract trapped oil from the reservoir rock, enabling improved oil recovery. These operations involve large quantities of surfactants, so environmental impact is an important consideration. Natural surfactants are derived from renewable sources, such as plants and microorganisms. They are generally considered to be more environmentally friendly than synthetic surfactants, which are often produced through chemical processes using nonrenewable sources. In the current work, the physiochemical characterizations of Acacia concinna (AC) were carried out to assess its detergent characteristics. The studies of the thermal, interfacial, and emulsifying characteristics of AC-based surfactants are useful in different petroleum sectors.

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Section: Resultsmentioning

confidence: 86%

Section: Influence Of Acacia Concinna On the Interfacialmentioning

confidence: 88%

Characterization and Evaluation of the Rheological Behavior of a Natural Surfactant (Acacia concinna)

Dubey,

Majumder

2023

Ind. Eng. Chem. Res.

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Effects of block and random copolymerization on the properties of fatty alcohol polyoxypropylene‐polyoxyethylene ether sulfates for enhanced oil recovery

Chen,

Lin,

Chen

et al. 2024

J Surfact & Detergents

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Enhanced oil recovery (EOR) by surfactant flooding has been attractive. Among the surfactants developed alcohol polyoxypropylene (PO)‐polyoxyethylene (EO) ether sulfates (APES), also named extended surfactants, have been proved efficient. However, the arrangement of the PO and EO chains as well as the hydrocarbon structure in the molecules may significantly affect their performances. In this paper three APES, C18−16PO25EO10SO4Na (I), C18−16(PO/EO)25+10SO4Na (II), and C16GA(PO/EO)25+10SO4Na (III) were prepared and investigated, in which APES (I) and APES (II) were designed to have same PO and EO numbers but block and randomly copolymerized respectively with linear C18−16 fatty alcohols as starting agent, whereas the APES (III) was derived from double chain C16 Guerbet alcohol (C16GA) with PO and EO randomly copolymerized. The results show that the block copolymerized APES (I) gives much better brine solubility and counterion tolerance than the randomly copolymerized APES (II) and (III). Although all APES synthesized are highly surface‐active and can reduce Daqing crude oil/simulated brine interfacial tension (IFT) to ultralow by mixing with more hydrophobic surfactants in presence or absence of alkali, the APES (III) gives the lowest IFT due to with double hydrocarbon chains. In addition, it is found that for APES (I) gelation occurs in neutralization process and the corresponding nonionic intermediate is highly viscous, whereas the randomly copolymerized two intermediates are liquid‐like with low viscosity, which may be feasible to apply SO3/air falling film sulfation. This study provided useful information for arrangement of embedded nonionic moiety and hydrocarbon structure in designing extended surfactants for EOR.

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Stability analysis of CO2 microbubble for CO2 sequestration and mobility control in enhanced oil recovery

Dubey,

Majumder

2024

Chemical Engineering Journal

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Effect of number of oxypropylene on dynamic interfacial tensions of extended surfactants

Cited by 19 publications

References 29 publications

Characterization and Evaluation of the Rheological Behavior of a Natural Surfactant (Acacia concinna)

Characterization and Evaluation of the Rheological Behavior of a Natural Surfactant (Acacia concinna)

Effects of block and random copolymerization on the properties of fatty alcohol polyoxypropylene‐polyoxyethylene ether sulfates for enhanced oil recovery

Stability analysis of CO2 microbubble for CO2 sequestration and mobility control in enhanced oil recovery

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