Tags: Gas Dehydration

Troubleshooting At The Dehydration & Compression Station

Natural gas transported through common carrier pipelines must meet a moisture specification of 7 pounds of water per MMscf. Gas is usually dried to meet this requirement by scrubbing with a concentrated glycol solution. Figure 6-1 shows a standard glycol contactor tower, regenerator, and pump. Gas flows into the bottom of this tower where entrained …

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Water Content Determination

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The first step in evaluating and/or designing a gas dehydration system is to determine the water content of the gas. The water content of a gas is dependent upon gas composition, temperature, and pressure. For sweet natural gases containing over 70% methane and small amounts of “heavy ends,” the McKetta-Wehe pressure-temperature correlation, as shown in …

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Gas Dehydration

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Gas dehydration is the process of removing water vapor from a gas stream to lower the temperature at which water will condense from the stream. This temperature is called the “dew point” of the gas. Most gas sales contracts specify a maximum value for the amount of water vapor allowable in the gas. Typical values …

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