Rental Gas Dehydration Units
Our TEG dehydration units are available for lease in different sizes according to your specifications. Call today to learn more about our dehydration units!Contact Us
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When natural gas is produced from the reservoir, it is typically saturated with water vapor. In order to meet the pipeline specification, that water vapor needs to be removed. For sales of gas in warmer climates, as in the southern areas of the U.S., water content for pipeline quality specifications should not exceed 7 pounds per million standard cubic feet. At a minimum, glycol dehydration units must typically meet this specification. Further removal may be required if additional hydrate formation temperature depression is required, such as upstream of a cryogenic process or gas plant.
BTEX, otherwise known as benzene, toluene, ethylbenzene, and xylenes, are compounds that occur naturally in crude oil. BTEX compounds have emissions maximums that are monitored by the EPA. These compounds are liquid at atmospheric temperature and pressure, however it is possible for them to be vapors in natural gas streams. BTEX is typically accompanied by other volatile organic compounds, or VOCs.
BTEX and VOCs in natural gas is absorbed by TEG in the dehy tower and driven off by the dehy reboiler. The vapors from the reboiler are sent to a piece of equipment called a BTEX eliminator. This is a simple system that is typically an atmospheric cooled heat exchanger and a two-phase separator. The condensed BTEX liquids are sent to storage while VOCs are burned as fuel for the dehy reboiler.
By providing us with your gas specifications, our process engineers can simulate and determine what size system is appropriate for your applications specific needs. Send TransTex your gas analysis today.
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