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Synthesis of a New CO2 Philic Surfactant for Enhanced Oil Recovery Applications
Authors:Muhammad Sagir  Isa M Tan  Muhammad Mushtaq  Lukman Ismail  Muhammad Nadeem  Muhammad Rizwan Azam
Institution:1. Chemical Engineering Department , Universiti Teknologi PETRONAS , Perak , Malaysia;2. Subsurface Technology, PETRONAS Research Sdn. Bhd (PRSB) , Selangor , Malaysia
Abstract:The synthesis of CO2 philic surfactant using maleic anhydride and 4-tert-butylbenzyl alcohol is reported. We reacted maleic anhydride with 4-tert-butylbenzyl alcohol to form bis(4-(tert-butyl)benzyl) fumarate and sulfonated the produced diester. The esterification reaction was optimized for a maximum yield of 98% of bis(4-(tert-butyl)benzyl) fumarate. First-order reaction kinetics with respect to acid was observed. The activation energy was found to be 55.62 kJ/mol. The sulfonated product of diester was obtained by the sulfonation reaction and the yield of 82% of surfactant was achieved. The in-house developed surfactant effectively lowered down the IFT between CO2/brine to 4.2 mN/m. This surfactant is targeted for CO2-EOR applications. id=
Keywords:EOR  interfacial tension  kinetics  surfactants
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