Thermodynamic Hydrate Inhibitors for Preventing of Gas Hydrates Formation in Gas Pipeline Transmissi on

Gas hydrates are ice-like crystalline structures which may form in high pressures and temperatures above water freezing point. Hydrate formation in the gas transmission pipelines may lead to interrupt in gas transmission and pipeline blockage. So the hydrate formation must be inhibited as the blockage removal is a high costly and time consuming operation. Chemical inhibitors are commonly used in order to prevent the hydrate formation in gas pipelines. These inhibitors are divided into thermodynamic and kinetic inhibitors. Thermodynamic Hydrate inhibitors would beexplained in this article. Thermodynamic Hydrate inhibitors effects on water chemical activity and causes the hydrates to form in higher pressure and lower temperatures. In this paper, related equations to thermodynamic Hydrate inhibitors, gas pipelines operational data’s applications, using these data’s in related equations and finally verifying the obtained results have been accomplished. We described the standing relations for thermodynamic inhibitors in this paper. Three experimental relations were indicated in order to prevent the hydrate formation.

کلیدواژه ها:

Gas Hydrates ، Thermodynamic Hydrate Inhibitors ، Sub cooling ، Gas Pipeline Transmission ، Methanol