Molecular Sieve Dehydration (2+1 configuration) process flow diagram | Source: Malino H. (May 2005)

Natural gas produced from reservoirs is invariably saturated with water vapor. If left untreated, this moisture causes hydrate formation that can plug pipelines and cryogenic equipment, promotes corrosion in carbon steel infrastructure, and contaminates downstream processes such as NGL extraction and LNG liquefaction. Molecular sieve dehydration — based on the principle of Temperature Swing Adsorption (TSA) — is the standard solution wherever deep water removal is required, typically defined as achieving water content below 1 ppmv (parts per million by volume) and water dewpoints as low as −100°C (−148°F).

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