The team of researchers, along with Dr. Rajnish Kumar, IIT Chennai, a collaborator in this study, have found that surfactant molecules like sodium dodecyl sulfate (SDS) when mixed with other co-surfactants, like cocamidopropyl betaine (CAPB), can increase the efficiency of methane uptake significantly. They have shown the direct molecular mechanism of which leads to enhanced methane uptake by the mixed surfactant systems resulting in the formation of methane hydrates. This work has been published recently in the ‘Journal of Molecular Liquids’.
According to the team, the presence of CAPB led to much larger aggregates formed by the surfactants, and in the presence of methane in the system, these structures can absorb a large amount of methane in the hydrophobic interior. These additive molecules can go a long way to develop systems to reduce the necessity of long and costly gas pipelines for transportation of natural gas.
– Tapas Bhattacharya