... in the fields of the deep drying, refinery polymerization for cracked gasses, ethylene, propylene and any other non-acidic ... methane, cracked gas, ethylene, propylene, butadiene.The pore size for 4A can mainly used to adsorb water, methanol, ethanol, sulfureted ... dehydration of electronic element, pharmaceutical and unstable material4) Desiccant for paint, dope and foulThe pore size of 5A can absorb all ...