Methane Storage in Adsorbents

Undoubtedly, methane is cheap, and its abundant distribution worldwide is a highly valuable feature [186], In addition, during methane combustion, low emission levels of ozone, unburned hydrocarbons, and SO-, and NO, are observed [188], Furthermore, the greenhouse effect is much less than that of classical liquid hydrocarbon fuels [187], Finally, methane has the maximum possible hydrogen-to-carbon ratio and, thus, the highest energy per unit mass of all the other hydrocarbons [188], 

The Physical Chemistry of Materials Energy and Environmental Applications 

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