Mercury occurs naturally in many natural gas streams and must be removed to protect downstream equipment, catalysts, and personnel. Adsorption towers using activated carbon or metal-based adsorbents capture mercury as gas flows through the bed, producing clean gas for processing or sale. Systems may be non-regenerative or regenerative, with the latter allowing periodic regeneration of the adsorbent. Effective upstream filtration and liquid removal are essential to protect adsorption beds and extend operating life. Gas-liquid coalescers and particulate filters prevent water, hydrocarbons, and solids from damaging the beds or contaminating downstream processes, ensuring reliable plant performance and consistent mercury removal.

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