Polysaccharides from Tamarindus indica L. as natural kinetic hydrates inhibitor at high subcooling environment

Abstract In an offshore system, hydrocarbon fluids are produced at deeper depths in the oceans, and extended pipelines delivering over long distances common. Subsequently, these practices increase tendency of unprocessed water-containing fluid to be exposed lower temperatures higher pressures conditions where hydrate formation is favourable. One solutions resolve this problem by introducing inhibitors preferably low dosage (LDHIs). The more versatile LDHIs; Kinetic Hydrate Inhibitors (KHIs) could further optimised cost its biodegradation properties. current study used ionic, neutral, hydrophilic, mucoadhesive highly branched Tamarindus indica L. polysaccharide (TSP) . TSP as a new natural kinetic inhibitor due high methoxyl content. study, polysaccharides were extracted using water-based extraction method which resulted 61.3% yield. performance delaying clathrate hydrates was evaluated based on induction time recorded from thermogram generated pressure micro-differential scanning calorimeter device (HP-μDSC) 5 MPa with subcooling degree 17.3 °C. Three concentrations (0.10 wt%, 0.25 0.50 wt%) tested determine optimal concentration delay prescribed while comparing it condition when there no addition TSP. outcomes shows that able subcooling. works well remain relatively economical biodegradable.