... of fast adsorption, more regeneration times, higher crushing 3A molecular sieve is the kind of molecular sieve with ... pore size of 3A, in petroleum associated gas, natural gas drying and ... so on, does not adsorb any molecular larger than 3A, according to the industrial application, Bete made molecular sieve ... %0.30static adsorption capacity RH=60%21±2 3A molecular sieve