Determination of Synergistic Effect of Kinetic Inhibition of PVP+NaCl on Carbondioxide Gas Hydrate Formation

• Main Author: Prayoga - Nim: 13013097, Darmawan
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/26395
• Institution: Institut Teknologi Bandung

<p align="justify">Flow assurance is a term in petroleum industry which refers to ensuring economical and uninterrupted production of oil and gas. Hydrate formation control is considered to be the most challenging aspect in flow assurance, because hydrate plug will result in the inflict in process safety loss. Methods for controlling hydrate formation vary from dehydration, pipe insulation, and inhibitor addition. Poly (vinyl pyrrolidone) (PVP) is grouped as Kinetic Hydrate Inhibitors (KHI) and have very high potency due to its high availability, and its only needed in low concentration (0.5-2.0%) to inhibit hydrate formation (Kamal et al., 2016). Synergists are chemicals which don’t have kinetic inhibition power, but when added along with KHI, the combination can give synergistic hydrate formation inhibition power. <br /> <br /> <br /> The purpose of this research is to evaluate the kinetic hydrate formation inhibiting phenomenon of carbondioxide hydrate by PVP with addition of NaCl as synergist. Variables that varies in this research are PVP addition, variation of PVP concentration, and variation of NaCl concentration. The result of this research shows that addition of NaCl shifts the equilibrium pressure and temperature for carbondioxide hydrate formation. Variation of PVP and NaCl concentration give significant results to the induction time for inhibition of carbondioxide hydrate formation. The most optimum synergistic effect of PVP+NaCl on carbondioxide hydrate formation occurs when addition of 2.0% PVP and 10% NaCl. The induction time resulted from this combination is 193 minutes. <p align="justify">