Table 3

Main results of preliminary simulated case studies.

ID Product Description Main outcomes
1 CH4 100% utilization of the available POGs to produce methane Largest hydrogen and consequently electrolysis requirement (between about 2 and 4 GW) Almost complete carbon and H2 conversion
2 CH4 Methanation of POGs that are currently used in the power plant
3 CH4 Methanation of specific amounts of the POGs in order to replace the NG demands of the plant  
4 CH3OH Methanol synthesis of POGs that are currently used in the power plant Reusing the residual hydrogen and/or optimum hydrogen utilization during methanol synthesis can significantly reduce the associated electrolysis demands
5 CH4 + CH3OH Methanation of specific amounts of the POGs in order to replace the NG demands of the plant and for the production of significant quantities of methanol

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