تشكيل هيدرات هاي گازي در خطوط لوله انتقال گاز و پيشگيري از آنها با استفاده از باز دارنده هاي ترموديناميكي

Thermodynamic Hydrate Inhibitors for Preventing of Gas Hydrates Formation in Gas Pipeline Transmission

Gas hydrates are ice-like crystalline structures but they are different from ice. They 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. Because the cost of pipeline blockage is high 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 inhibitors and kinetic inhibitors. Thermodynamic Hydrate inhibitors would be explained in this paper. Thermodynamic Hydrate inhibitors effects on water chemical activity and causes the hydrates to form at higher pressure and lower temperatures. In this paper, related equations to Thermodynamic Hydrate inhibitors, gas pipelines operational dataʹs applications, using these dataʹs in related equations and finally verifying the obtained results have been accomplished. It is shown that Methanol is the best inhibitor.