Numerical simulation on carbon deposition characteristics of mixture component on CH4/O2/H2O autothermal reforming reaction in a micro-chamber

作者：Ran Jing Yu^*; Tu Wei Feng; Yan Yun Fei; Chen Bing Bing

来源：Journal of Engineering Thermophysics, 2010, 31(8): 1335-1338.

• Auto-thermal
• Autothermal reforming
• Carbon deposition
• Catalyst surfaces
• Catalytic reforming reaction
• Energy requirements
• Heat energy
• Mass fraction
• Micro-chambers
• Mixture component
• Mixture components
• Mole ratio
• Ni catalysts
• Numerical simulation
• Oxidation of methane
• Reforming chambers
• Surface carbon

A large quantity of heat energy is required in the process of methane reforming reaction, and the carbon is easily deposited on the catalyst surface of the micro-reforming chamber. To add any oxygen to mixture can provide a quantity of heat energy for the catalytic reforming reaction because of part oxidation of methane, and the density of surface carbon deposition will decrease. In this paper, the effect of mixture component on the CH4/O2/H2O auto-thermal reforming reaction with Ni catalyst of the micro-chamber's surface was simulated. The results show that the mole ratio of CH4/O2/H2O is 1:0.2:2, the auto-thermal reaction exothermic quantity can well meet the energy requirements of reforming reaction, the mass fraction of H2 can reach 3.32%, the density of surface carbon deposition is 1.19×10?6 kmol/m2.

• 出版日期2010