Enhanced oil recovery using synthesized sodium lignosulfonate surfactant from bagasse as development petroleum science

Abstract

This study was aims to demonstrate that bagasse as a waste can be use for enhanced oil recovery process. Bagasse has a lot of lignin content that can be processed as a sodium lignosulfonate surfactant. The use of bagasse for surfactants at the chemical flooding is an innovation in petroleum science. Synthesized bagasse to lignosulfonate was done by isolation process using sodium hydroxide as a reagent and sulfonation process using sodium bisulfite as a reagent. From FTIR test and NMR test, the surfactant synthesis from sugarcane waste, sodium lignosulfonate (SLS) consist of sulfonate groups (hydrophilic groups) and benzene (lipophilic groups). This SLS surfactant has value of 11.62 for HLB. The presence of hydrophilic and lipophilic components resulted in the stability of middle phase emulsion in the range of 5% - 10%. The core flood using that surfactant obtained recovery factor reaches 1.05% - 9.50%. HLB SLS surfactant from sugarcane bagasse shows the function of SLS surfactant as injection fluid in an oil / water emulsion system, which is indicated by the presence of an intermediate phase emulsion. Conclusion of this study indicate that the synthesized lignosulfonate of bagasse can use an injection fluid in O/W emulsion and bind oil and water to form microemulsions. The bagasse is a local raw material for sodium lignosulfonate (SLS) surfactants which can be useful for enhanced oil recovery.