Reaction of nitrous oxide with methane to synthesis gas: A thermodynamic and catalytic study

摘要: Abstract The aim of the present study is to explore coherence thermodynamic equilibrium predictions with actual catalytic reaction CH 4 N 2 O, particularly at higher conversions. For this purpose, key process variables, such as temperature (300 °C–550 °C) and a molar feed ratio (N O/CH  = 1, 3, 5), were altered establish conditions for maximized H yield. experimental was conducted over Co-ZSM-5 catalyst in fixed bed tubular reactor then compared compositions, where composition calculated via total Gibbs free energy minimization method. results suggest that plays an important role overall products distribution. Generally O conversions, irrespective ratio, coincide data obtained approximately 475 °C–550 °C, indicating reactions are kinetically limited lower range temperatures. example, theoretical calculations show yield zero presence excess  = 5). However catalyst, same ) 5, initially 10% 425 °C, while above 450 °C it drops zero. Furthermore, steadily increases level conversion by concentration reactant feed. maximum attainable (from  = 3) 550 °C 38%, whereas Co-ZSM-5, experimentally observed about 19%. Carbon deposition on temperatures (less than 50%) also observed. At levels (above 90%), deposited carbon suggested react form CO .