What is the Crush Strength of MERSORB® mercury adsorbents?
MEASURING CRUSH STRENGTHS INDIVIDUAL PARTICLE CRUSH STRENGTH BULK METHOD CRUSH STRENGTH CRUSH STRENGTHS OF VARIOUS ADSORBENT MATERIALS
Crush strengths of adsorbent particles have been measured by two methods.
• Individual Particle Method • Bulk Method
Twenty particles are tested, one particle at a time. The average crush strength is reported. Crush Strength units of 1.0 Kg are approximately equal to 10 Newtons/cm2.
This method measures the crushing force of a known volume of the particles. Since much of the compressive force is distributed outward to the vessel walls, a material will give a higher number in this method than its individual particles will give when tested individually.
Adsorbent materials can exhibit a wide range of crush strengths depending on particle size, type, and material. For a given material, the larger diameter particles will typically have higher crush strengths.
Activated Carbon pellets typically have higher crush strengths than granular activated carbons, because pellets are made with more binder material and are produced under higher pressure forming methods. Activated Carbons are relatively inert to chemical attack.
Activated Aluminas are naturally self-binding, and when made by certain production methods can have high crush strengths when dry, but typically exhibit lower crush strengths when wet. Aluminas, Zeolites, and metal oxides are all attacked and weakened by acids.
Zeolites are not self-binding and are therefore mixed with clays to bind the particles together. When calcined, these beads or pellets can have good crush strengths.
MEASURING CRUSH STRENGTHS
INDIVIDUAL PARTICLE CRUSH STRENGTH
BULK METHOD CRUSH STRENGTH
CRUSH STRENGTHS OF VARIOUS ADSORBENT MATERIALS
MERSORB® Mercury Adsorbent vs. Pellet Diameter
4mm – 7.44 Kg (16.4 Lbs) 1.5mm – 2.57 Kg (5.7 Lbs)
3mm – 6.96 Kg (15.4 Lbs) 1.0mm – 1.25 Kg (2.8 Lbs)
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.