(56d) Protecting Environment and Assuring Smooth Energy Transfer Using Ionic Liquids
AIChE Spring Meeting and Global Congress on Process Safety
2018 Spring Meeting and 14th Global Congress on Process Safety
Spring Meeting Poster Session and Networking Reception
Poster Session: UEFA
Monday, April 23, 2018 - 5:00pm to 7:00pm
These chemical inhibitors are generally classified as thermodynamic hydrate inhibitors (THI) and kinetic hydrate inhibitors (KHI). The thermodynamic hydrate inhibitors function by shifting hydrate dissociation temperature to lower values and kinetic hydrate inhibitors function by delaying the hydrate formation time. The commercial THI like Methanol and Mono-ethylene glycol (MEG) perform well, but these inhibitors are required in large quantities (> 30 wt%) and cannot be easily disposed of into the environment. Therefore, there is a strong industrial need to design inhibitors that are environmentally friendly and are required in low dosage.
Ionic liquids (ILs) well known as ionic fluids are type of an organic salts that have low melting points and tendency to stay in a liquid form at low or ambient temperature. Ionic liquids are extensively being used in different chemical processes due to their negligible vapour pressure and low viscosity. Recently, ionic liquid have been recognized as the dual functional inhibitors as they have tendency to perform as kinetic hydrate inhibitor and thermodynamic hydrate inhibitor simultaneously.
In this experimental based work the thermodynamic inhibition (TI) and kinetic inhibition (KI) effect of ionic liquids (ILs) 1-Methyl-1-Propyl-pyrrolidinium Chloride [PM-Py][Cl] and 1-Methyl-1-Propyl-pyrrolidinium Triflate [PM-Py][Triflate] have been investigated on a methane rich gas mixture at different concentrations and pressure ranges (40-120 bars). The effect of addition of synergents with ionic liquids has been also studied and the experimental results have been compared with the commercial thermodynamic inhibitor methanol and literature data. All the experimental work has been conducted using PSL systemtecknik rocking cell assembly.
This work was made possible by NPRP grant # 6-330-2-140 and GSRA # 2-1-0603-14012 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors.