Molecular Dynamics simulation study of the performance of different inhibitors for methane hydrate growth was written by Castillo-Borja, Florianne;Bravo-Sanchez, Ulises I.. And the article was included in Journal of Molecular Liquids in 2021.Recommanded Product: 75-57-0 The following contents are mentioned in the article:
The methane hydrates can form blockages that occlude the flow in oil and gas pipelines increasing the risk of pipeline rupture with economic losses and can even cause accidents. One of the alternatives to avoid these problems is to inject some gas hydrate inhibitor into the flow, in this way the stability conditions of the hydrate are shifted to higher pressures and lower temperatures or the hydrate growth can be delayed for a longer time. In this work, the effect over the methane hydrate growth is studied for six different types of gas hydrate inhibitors using Mol. Dynamics simulations: Methanol, ethylene glycol, two aprotic ionic liquids EMIM-Cl and EMIM-NO3, and two protic ionic liquids EAF and TMACl. Traditionally, inhibitors such as methanol have been used, and aprotic ionic liquids have been studied more recently, but protic ionic liquids have received very little attention. These compounds are worth studying because they represent economic advantages in their synthesis and purification For these reasons, this work aims to deepen the way in which the three types of gas hydrate inhibitors, conventional thermodn. inhibitors, aprotic and protic ionic liquids act at the atomistic level. The results of the simulations were used to calculate changes in the number of hydrogen bonds between water mols., structural order parameters F3 and F4, partial d. profiles and radial distribution functions between water and gas hydrate inhibitors. The results indicate that TMACl was the best preventing the growth of the methane hydrate. This is due to a decrease of up to 5% of the hydrogen bonds between the water mols., with respect to those that are formed in a system without inhibitor. In this case the inhibitor can form several hydrogen bonds with other water mols., which causes a competition between the inhibitor and the water mols. of the hydrate for the free liquid water mols. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Recommanded Product: 75-57-0).
Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Recommanded Product: 75-57-0
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics