Ref.: EmaMss11-001
Apresentador: Jornandes Dias Silva
Autores (Instituição): Silva, J.D.(Universidade de Pernambuco);
Resumo:
The steam reforming of biomethane (SRB) is currently considered a promising process for so-called synthesis gas (H2 and CO). The SRB can be processed on the porous materials bed as solid open-cell foams due to high porosity and great surface area. Solid open-cell foams are macroporous reticulated 3D structures constituted by interconnected cavities and made of metals (aluminum, steel), ceramics (alumina, silicon carbide etc.), or carbon materials. The Lumped-Particle Packed Bed (LPPB) reformers can be used to produce green hydrogen (GH2) from the conversion of biomethane. The main objective of this work is developing a theoretical modelling to study the process variables of the SRB in the LPPB reformer. The system physical modelling is built based on the process scheme of PV system-assisted SRB using hybrid nanofluid as heat transfer fluid. he hybrid nanofluid can be used to enhance the thermophysical properties of the SRB process and, consequently, the conversion of biomethane e H2G production. The reactant and product distribution along lumped-particle packed bed length have been computed. The production of H2G reached 34.83 % at 450 K while the generation of CO achieved 28.78 % at 450 K. The conversion of biomethane varies at different operating temperature along lumped-particle packed bed length. As results, the conversion of biomethane lies turned on the effect of the operating temperature. An increase of the operating temperature brings about a growth on the conversion of biomethane and, consequently, the production de H2G.The thermal energy sources can come from solar energy, burning natural gas and/or through heat exchange of other waste heat sources. In this context, it is possible reaching the following conclusions: (1) The hybrid process of the SRB has demonstrated a production of H2G of 34.83 % at 470 K; (2) the conversion of biomethane has achieved 87.46 % at 720 K.