Nanoporous Materials as Tool for Natural Gas Purity Upgrading

The extensive usage of fossil fuels associated with the huge emission of greenhouse gases accelerates the global warming effect and its associated climate change phenomena. Natural gas (CH₄) is considered as an environmentally friendly combustion fuel and is a good alternative to alleviate this phenomenon. However, the natural gas streams contain huge concentrations of CO₂ creating corrosion and combustion quality demerits for using of natural gas directly. Therefore, the selective capture of CO₂ from natural gas streams via an energy-efficient adsorption process in porous materials is a mandatory industrial requirement before the distribution and commercialization of CH₄.  In this review, a brief review of porous materials, classification, synthesis, and exploitation of porous materials in natural gas purification was studied. Moreover, recent advances in the separation selectivity of CO₂/CH₄ and its separation adsorption action were briefly discussed.