The kinetics of steam reforming methane catalyzed by sponge iron was studied at temperatures between 875°C and 1050°C. Results shows that acts as a catalyst conversion is increased in higher with H2/H2O ratio the inlet gas. A kinetic model based on chemical reaction control fits well experimental data up to 0.5 an apparent activation energy 258 kJ/mol. Pore diffusion limits rate more intensely ...

The dry reforming of methane (DRM) using biogas and a Ni-based catalyst for syngas production was studied experimentally in this study under the presence H2S. Using nonpoisoned DRM performance as comparison basis, it found that deactivation by sulfur chemisorption onto surface depends on both reaction temperature time. With low temperatures, complete coverage resulted could not be regenerated. ...

Abstract Four tri-reforming-SOFC system configurations are built with different off-gas recirculation methods (anode and burner recirculation) reformers (with heat exchange oxygen injections) to improve management. The systems modeled explore the effects of fuel utilization. It is found that type mainly affects maximum temperature in reformer while reforming methane conversion. max gradient sta...

Current environmental problems have created the need to search for cleaner fuels. Hydrogen has been proposed as a clean fuel because its combustion by-product is water. Unfortunately, hydrogen is not readily available in pure form. It is obtained from steam reforming (CH4 +2H2O→4H2 +CO2) and dry reforming (CH4 +CO2→2CO+2H2) [1] and has to be separated from methane, carbon dioxide and smaller am...

severe accidents of process industries in iran have increased significantly in recent decade. this study quantitatively analyzes the hazards of severe accidents imposed on people, equipment and building by a hydrogen production facility. a hazard identification method was applied. then a consequence simulation was carried out using phast 6.54 software package and at the end, consequence evaluat...

Internal dry reforming of methane is envisaged as a possibility to reduce on capital and operation costs biogas fuelled solid oxide fuel cells (SOFCs) system by using the CO2 present in biogas. Due internal reforming, requirement for upgrading becomes obsolete, thereby simplifying complexity increasing its technology readiness level. However, impurities prevailing such H2S have been reported li...