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Storage of natural gas in liquid hydrocarbons is one procedure for automotive natural gas usage that reduces the requirements of high-pressure or cryogenic storage needed in other common techniques such as CNG and LNG. Model solutions of Methane in 52 solvents and Tehran Refinery productions were simulated using various equations of state
to determine the pressures necessary to maintain a liquid phase at ambient temperature. The calculation results show that the storage pressure can be reduced to
15 MPa, and due to the storage condition in the liquid phase, the energy density is increased up to almost 40% of the energy density of gasoline. With this technology, the low storage density of CNG and the very low storage temperature of LNG are both overcome, thus dramatically
improving the technical feasibility of large-scale commercialization of natural gas powered vehicles.