III International Conference

PP-III-5THE PYROLYSIS OF METHANE AT THE COMBINED ACTION OF THEMICROWAVE–RADIATION AND MASSIVE METAL CATALYSTSGalanov S.I., Sidorova O.I., Polygalov Yu.I. 1 , Stepanov V.P. 1 , Medvedev Yu.V. 1 ,Zherlitsyn A.G. 2 , Shejan V.P. 2Tomsk State University, Tomsk, Russia1 Joint Stock Company “Tomskgazprom”, Tomsk, Russia2 State Scientific Institution "Nuclear Physics Institute" (NPI), Tomsk, RussiaE-mail: galanov@xf.tsu.ruThe mechanism of methane pyrolysis to nanodispersible carbon material and hydrogen onmassive metal catalysts at influence of the microwave-radiation was considered.The conversion of methane was carried out in a flowing wave in the presence of themicrowave- category with frequency 2450 MHz. For maintenance of the category and heatingof the catalyst was used the source adjustable by the microwave with the maximal capacity1,5 kW. In process was used the combination of metallic catalysts and the influence ofmicrowave field on catalyst and methane was studied. At influence of microwave radiation onthe catalyst and methane micro categories between granules of metal were observed. It led toprimary formation of ethylene, acetylene and hydrogen from methane. The endothermicreaction of formation of unsaturated С 2 -compounds resulted in decrease of temperature ofcatalytic layer. At achievement of critical concentration of hydrogen in a reactor there was"ignition" of the plasma category, which resulted in total conversion of methane andunsaturated compounds to carbon.The table. Parameters of process of conversion of methane in the microwave reactorConversionContent ofConcentrationContent of carbonThe catalyst of methane,amorphousН%2 , %vol.nanotubes (%)carbon (%)TiNi 42.4 52.3 45.00 46.1AlNi 15.8 28.3 55.00 33.1Ni 79.5 84.9 21.2 56.5Fe 54.5 69.4 4.04 78.2Mo 77.6 84.6 64.9 24.9Ti 27.9 43.4 23.1 40.5The rest is a graphite and ortacarbon. The maintenance С 2= in reactionary gases upto 8 % about.478