“…In addition, natural gas is now considered as an appropriate alternative fuel because of the huge resources of this gas, its relatively low price and its low toxic gas emissions. However, natural gas requires special storage systems (Rudisill et al 1992) because of its low volumetric energy density (Menon and Komameni 1998;Castello et al 2002;MacDonald and Quinn 1998;Lee et al 2006Lee et al , 2007Balathanigaimani et al 2006). As far as storage is concerned, the adsorbed natural gas (ANG) storage system provides a feasible process capable of solving several problems in natural gas storage (Lee et al 2007;Balathanigaimani et al 2008a,b;Moreno and Giraldo 2005a,b;Huertemendia et al 2005;Steckler et al 1986;Gunn 1965;Russell et al 2006;Lerchner et al 2002).…”