in this study, the modeling of hydrogen production process in microreactors by methanol-steam reforming reaction is investigated. the catalytic reaction of methanol-steam reforming producing hydrogen is simulated considering a 3d geometry for the microreactor. to calculate diffusion among species, mixture average correlations are compared to stephan-maxwell equations. the reactions occurring in...

The steam reforming of hydrocarbon fuels is a promising method for the production of hydrogen for portable electrical power sources. A suitable reactor for this application, however, must be compatible with temperatures above 800 degrees C to avoid coking of the catalytic structures during the reforming process. Here, ceramic microreactors comprising high surface area, tailored macroporous SiC ...

The combined dry-steam reforming (CDSR) of a model biogas (66 % CH4 + 34 CO2) has been investigated under various feed compositions and reaction temperature conditions over Ni-Rh/MgAl2O4 catalyst, with the objective to convert excess methane (compared by steam (SR). Methane, however, appeared react preferentially H2O rather than CO2, leading an inhibition dry (DR) in presence steam. CO2 adsorpt...

Abstract The chemical looping single reactor (CLSR) system utilizing calcium ferrite as oxygen carriers represents an innovative approach to biogas reforming, which has the potential enhance efficiency and sustainability of production. In this process, oxy-combustion burner supplies necessary endothermic heat while CO 2 is simultaneously utilized, resulting in autothermal process that generates...

Thermodynamic equilibrium analysis of the steam methane reforming process to synthesis gas was studied. For this purpose, system chemical reactions for carbon production and consumation as well other side reaction in were analysed. The material balance equations law mass action obtained various reactions. those solved by dichotomy method. investigation performed a wide range operational conditi...

BACKGROUND Bio-jet fuels compatible with current aviation infrastructure are needed as an alternative to petroleum-based jet fuel to lower greenhouse gas emissions and reduce dependence on fossil fuels. Cradle to grave life cycle analysis is used to investigate the global warming potential and fossil fuel use of converting poplar biomass to drop-in bio-jet fuel via a novel bioconversion platfor...