Ethylene and propylene producers have faced the challenge of contaminants for decades. Adsorbents, both molecular sieve and alumina based, have been successfully used to help olefin producers manage their operations as contaminated feeds and increasingly sensitive polymerization catalysts continue to offer them increasing challenges. The most widely used adsorbents are the 3A based molecular sieve products utilized to dehydration of olefin, cracked gas, liquids, ethylene-ethane and hydrogen
Adsorbents for Dehydration of Olefines
3A Molecular Sieve, has an effective adsorbent for this purpose with pore opening of about 3 angstroms(0.3 nm). This is large enough to allow in moisture, but excludes other molecules, so water content can be decrease effectively. GSorb-330 is 3A molecular sieve specialized for drying of cracked, unsaturated hydrocarbon gas and other polar liquid and solvents such as ethanol, methanol