Gas Applications


MERSORB® mercury adsorbent has been used successfully in many plants and widely different types of industries. This product is an activated carbon pellet (extrudate) with a high internal surface area (1,000 m2/g) that has been impregnated with elemental sulfur by a proprietary method. Our impregnation technique creates high dispersion of the sulfur inside the activated carbon, thus high availability of the sulfur to remove mercury.

Some carbon manufacturers indicate a high weight percent of sulfur impregnant on their carbon. But, if high sulfur content were the key to performance in removing mercury, then a vessel full of lumps of sulfur would be ideal. In actual fact, it is the available surface area of sulfur that is the key to a high-performance mercury adsorbent.

MERSORB® mercury adsorbent 3mm & 4mm diameter pellets and 3x6 and 4x8 mesh granular, coconut-shell-based particle sizes are used for gas phase (hydrocarbon gas, H2, air, & synthesis gas) applications, providing mercury removal efficiencies to 99.99+ % and a pressure drop within the limits specified by the client. MERSORB® mercury adsorbent applications include: Both Wet & Dry Natural Gas in Natural Gas Plants to prevent Hg corrosion in cryogenic equipment; Cracked Gas in Ethylene Plants to protect catalysts & aluminum equipment; Light Olefin Gas Recovered from FCC Units to protect the receiving ethylene plant; Chloralkali Plants for Hydrogen purification; Emission Control for Hot Off-Gas from Retorting of Hg-bearing sludge; Emission Control at Gold Refiners, & Emission Control at Fluorescent Lamp Manufacturers & Recyclers.

Some clients using competitors’ Hg adsorbents to treat warm gases experienced sulfur loss and decreased Hg removal efficiency. When they started using MERSORB® mercury adsorbent, our clients achieved high-efficiency mercury removal. Our product can withstand higher temperatures than competitive products without losing the sulfur impregnant. Our products do not require N2 blanketing during vessel loading. Applications are designed for each client’s specific operating conditions.

Providing Solutions to remove mercury for emission control, corrosion prevention and catalyst protection.

Selective Adsorption Associates, Inc. (SAA) offers over 40 years of experience in Process Engineering of Adsorption Systems for Gas and Liquid Drying, Sulfur Compound Removal, Emission Control, and over 20 years of Process Design experience in Mercury Removal Systems.

CAUTION: Wet activated carbon removes oxygen from air. Thus, an asphyxiation hazard exists inside enclosed spaces containing activated carbon. Use appropriate safety precautions when entering vessels or other enclosed spaces containing activated carbon. Exposure to strong acids and oxidizers can cause formation of toxic H2S gas.

MERSORB® is a trademark of Nucon International, Inc. (NUCON®) for impregnated activated carbons used to remove mercury from gases and liquids. NUSORB® is a trademark of NUCON for its activated carbons. Information presented herein is believed to be accurate and reliable but does not provide any guarantee or warrantee by NUCON® or by Selective Adsorption Associates, Inc. Nothing herein shall be construed as an invitation to use processes covered by patents without proper arrangements with individuals or companies owning those patents.

AntiMercure® is a Registered Trademark of Selective Adsorption Associates, Inc. (SAA) for its Process for removing mercury from water; AntiMercure™ is a trademark of SAA for its pre-Engineered Systems for removing mercury from water. All Rights Reserved.