A catalytic ruthenium membrane reactor (CRMR) is analyzed with regard to the methane partialoxidation reaction for synthesis gas production. The catalytic membrane consists of a commercialceramic tube, where two different layers of ruthenium nanoparticles have been deposited onthe inner surface. The metal deposition was performed by decomposition of a Ru complex undermild conditions. Different operating modes are analyzed for CRMR to establish the potentialityof the Ru catalyst deposited on the tubular ceramic support. A comparison in terms of methaneconversion at various temperatures is presented. Experimental runs of CRMR containing a one-Ru-layer membrane and a two-Ru-layer membrane have also been compared.