Challenge sodium lignosulfonate surfactants synthesized from bagasse as an injection fluid based on hydrophil liphophilic balance

Abstract

The aim of this research is to obtain Sodium Lignosulfonate (SLS) surfactant from bagasse as an alternative petroleum sulfonate. The experimental method of the process SLS surfactant from bagasse through two processes, hydrolysis and sulphonation process. Then tested for its characteristics through FTIR test, LCMS test, NMR test and compatibility test. Based on the structure of the sodium lignosulfonate of bagasse with the empirical formula of lignosulfonate monomer is (C11H16O8S)n, have hydrophil and lipophyl groups. The calculation of Hydrophilic Lipophilic Balance (HLB), the synthesized SLS surfactant of bagasse has a HLB value of 11.62. From the compatibility test, this SLS surfactant have a good aquaeous stability, no turbidity, perfect soluble and clear. This SLS surfactant capable of water wet system and having the category as an O/W (Oil in Water) emulsion, indicating that the surfactant good dissolves in water. The mechanism of the synthesized SLS surfactant of the bagasse produces a good microemulsion between surfactant and oil. HLB is one of the parameters used to determine surfactant function. Based on the characteristic test and HLB value calculation it turns out that bagasse can be used as SLS surfactant. As an injection fluid in the EOR process, the SLS surfactant from bagasse has been in the function as O/W emulsion. So the use of lignosulfonate surfactant synthesized from bagasse is a challenge to be developed futher as a surfactant for the EOR process.