Synthesis and properties of nonylphenol-substituted dodecyl sulfonate. Issue 12 (2nd December 2017)

• Record Type: Journal Article
• Authors: Niu, R. X.; Wang, J. L.; Wang, W. Y.; Song, H.; Wang, C.; Wang, D. Q.
• Is Part Of: Journal of dispersion science and technology. Volume 38:Issue 12(2017)
• Page Start: 1692
• Page End: 1697
• Publication Date: 2017-12-02
• Subjects: Nonylphenol-substituted dodecyl sulfonate -- surface/interfacial activity -- synthesis -- weak-base ASP flooding; Emulsions -- Periodicals; Suspensions (Chemistry) -- Periodicals; Emulsions; Suspensions; 541.34
• DOI: 10.1080/01932691.2016.1230866
• Languages: English
• ISSNs: 0193-2691

Abstract

ABSTRACT: Nonylphenol-substituted dodecyl sulfonate (C12 -NPAS) was synthesized via sulfonation-alkylation-neutralization using 1-dodecene, SO3, and nonylphenol as raw materials. The properties such as surface tension, interfacial tension (IFT), wettability, foam properties, and salinity tolerance of C12 -NPAS were systematically investigated. The results show that the critical micelle concentration (CMC) of C12 -NPAS was 0.22 mmol · L −1 and the surface tension at the CMC ( γ CMC ) of C12 -NPAS was 29.4 mN/m. When compared with the traditional surfactants sodium dodecyl benzene sulfonate (SDBS), sodium dodecyl sulfate (SDS), and linear alkylbenzene sulfonate (LAS), the surface properties of C12 -NPAS were found to be superior. The IFT between Daqing crude oil and a weak-base alkaline/surfactant/polymer (ASP) oil flooding system containing 0.1 wt% of C12 -NPAS can reach an ultralow level of 2.79 × 10 −3 mN/m, which was lower than that found for the traditional surfactant heavy alkylbenzene sulfonate (HABS). The salinity and hardness tolerance of C12 -NPAS were much stronger than those found for conventional surfactants, petroleum sulfonate, and LAS. C12 -NPAS also shows improved wetting performance, foamability, and foam stability. GRAPHICAL ABSTRACT: