Sorbent

From Wikipedia, the free encyclopedia

A sorbent is a material used to adsorb either liquids or gases. Examples include:

  • A material similar to molecular sieve material. It has a large internal surface area and good thermal conductivity. It is typically supplied in pellets of 1 mm to 2 mm diameter and roughly 5 mm length or as grains of the order 1 mm. Occasionally as beads up to 5 mm diameter. They are typically made from aluminium oxide with a porous structure.
  • Materials used to absorb other materials due to their high affinity for doing so. Examples:
    • A sponge absorbs many times its own weight in water.
    • A polypropylene fiber mat may be used to absorb oil.
    • A cellulose fiber product may be used to absorb oil.
    • The granular gel material in a baby diaper will capture several times its original weight in urine.
Languages