... specialties, we endue our products with the characters of higher adsorption speed, stronger crushing and anti-contaminative ... , propylene and any other non-acidic gases or liquids in petroleum and chemical industrials. Application Molecular Sieve 3A ... ethylene, propylene, butadien). 8) Drying of olefins drying, ethanol, etc.9)Dehydration of many kinds of liquids (say ethanol) air, refrigerant , ...