Updated: Mar 31, 2021
When natural gas is produced from an underground reservoir, it is saturated with water vapor and might contain heavy hydrocarbon compounds, as well as non-hydrocarbon impurities. In its raw state, natural gas cannot be marketed and, therefore, must be processed to meet certain specifications for acceptable quality “pipeline” and “sales” gas.
These days, triethylene glycol (TEG) dehydration, or simply glycol dehydration, is the most common method. The TEG is re-boiled/re-generated at temperatures exceeding 350° F, high temperatures can be tough on all of the components within the system, it also requires specially engineered pumps to operate in these challenging continuous duty dehydration systems.
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