Preparing carbon molecular sieves of increased density
 Natural gas is stored in a closed vessel under a pressure of about 1400 to 4500 kPa using a carbon molecular sieve adsorbent. The deliverable volume of natural gas from a vessel packed with carbon molecular sieve particles is increased by impregnating a polymer precursor of the carbon molecular sieve with additional monomers and polymerizing the monomers before carbonizing the precursor. 
Allied-Signal Inc.
F B Y
F17C B01J Y10S
inventional inventional additional
Li Chin-Hsiung Mark
Wang Chang Kaiser