Methods of Predicting Hydrates Formation
Keywords:Hydrate, Energy, Natural gas, Hydrogen bonding, Molecule
Natural gas is one of the most important sources of energy supply in the current day and future and Iran is known as the second country with natural gas reserves. One of the main problems in the transfer of natural gas is the creation of hydrate in the pipelines and the blockage of these special lines in the cold seasons and cold areas of garlic. The aim of this study was to investigate the different conditions of natural gas hydrate formation and optimize MEG consumption to prevent hydrate formation. Gas hydrate is a crystalline compound formed by the trapping of gas molecules in cavities resulting from the hydrogen bonding of water. In the absence of a guest molecule (trapped gas) the cavity is dynamically unstable. However, if the guest gas molecule is placed inside these cavities, the non-polar bond formed between the gas and the water molecule will stabilize the structure and cause the hydrate to form at a temperature above the freezing point of the water. In this type of crystals, there is no chemical bond between the water molecules and the trapped gas molecules and the only factor in the stability of the crystals is the hydrogen bond between the host molecules and van der Waals force between the host and guest molecules.
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This work is licensed under a Creative Commons Attribution 4.0 International License (CC-BY 4.0).