How to Compare Mercury Adsorbents

The adsorbing power of an adsorbent is created by its total internal surface area per unit of weight of the adsorbent, in units of m2/gram. When considering a mercury removal media for an existing vessel, however, it is more useful to compare the total internal surface area of the candidate adsorbents per unit of VOLUME of the adsorbent.


Comparing 3 Commercial Mercury Adsorbents for Liquid Hydrocarbon treatment

MERSORB® LH mercury adsorbent (MS/AC)
metal sulfide impregnated into activated carbon
1,000 m2/g internal surface area 0.56 g/cm3 settled bulk density
Surface Area per unit of volume = (0.56 g/cm3)(1,000 m2/g)= 560 m2/cm3

IMPREGNATED ACTIVATED ALUMINA mercury adsorbent (MO/AA)
CuO/CuS impregnated into activated alumina
250 m2/g internal surface area 0.9 g/cm3 settled bulk density
Surface Area per unit volume = (0.9 g/cm3)(250 m2/g)= 225 m2/cm3

METAL OXIDE mercury adsorbent (MO)
agglomerated metal oxide with small amount of alumina/other binder
40 m2/g internal surface area 1.0 g/cm3 settled bulk density
Surface Area per unit volume = (1.0 g/cm3)(40 m2/g) = 40 m2/cm3

OBSERVATIONS
MERSORB® LH mercury adsorbent has
         14 X the internal surface area per unit volume as Metal Oxide
           2.5 X the internal surface area per unit volume as (MO/AA)

RECOMMENDATION
When you are trying to remove parts per billion of mercury from a liquid, you need all the adsorbent surface area that you can get into your vessel.
Use MERSORB® LH mercury adsorbent, it has the power to do the job.



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. 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.