CO2 adsorption on modified zeolites

Abstract

Since the invention of synthetic zeolites in 1959, innovations in sorbent development and adsorption process cycles have made adsorption a key separations tool in the chemical, petrochemical and pharmaceutical industries (Yang, 2003). Adsorption processes based on molecular sieving and selectivity are always reversible in theory and usually reversible in practice. This allows the zeolite to be reused many times, cycling between adsorption and desorption step of actual processes (Dabrowski, 2001). Adsorption in porous adsorbent material such as zeolite offers the possibility of lighter on-board gas storage and storing methane at high density while maintaining moderate physical conditions for the bulk phase.