In this work we demonstrate catalytic partial oxidation of methane into syngas at pressures up to 0.8 MPa, power densities up to 15 MW/L and selectivity greater than 85%. The product composition profiles indicate high initial selectivity to CO and low initial selectivity to H 2 , suggesting direct partial Oxidation of methane primarily into CO and water, while most hydrogen is produced in the consecutive steam reforming of methane.

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The development of a mesoscale catalytic combustor to be coupled with direct energy conversion modules for power production is presented. The combustor has a volume on the order of few cm 3 and operates on JP8 jet fuel, which is electrosprayed at a flow rate on the order of 10 g/hr and equivalence ratios varying from 0.35-0.70. Temperatures in the range 900K-1300K are achieved with a ± 5% uniformity over the top circular surface of the burner. Using gas chromatographic analysis of the exhaust gases, a combustion efficiency on the order of 97% is estimated. Remarkably, no fouling, nor soot, nor NOx were detected in the exhaust gases, which resulted in clean and efficient combustion of even environmentally problematic liquid hydrocarbons.

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