... : ·drying and removing of CO2 from natural gas,LPG,air,inert and athmospheric gases,etc.·removal of hydrocarbons,ammonia and ... methanol from gas streams(ammonisa syn gas treating)·in the air break uints of buses ,trucks and locomotives.·dehydration of ... . Instruction: prevent molecular sieve from exposing directly to the air.Waring: molecular sieve adsorption activity is an exothermic reaction,any ...