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ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
Assessment of the Steam Reforming of Ethanol for Hydrogen Production in a Lumped-Particle Packed Bed Reformer Heated by Molten Salt
Submission Author:
Jornandes Silva , PE
Co-Authors:
Marcos Silva, Daniel Ribeiro Dessaune, Renato Pereira, Jornandes Silva
Presenter: Renato Pereira
doi://10.26678/ABCM.ENCIT2022.CIT22-0219
Abstract
The steam reforming of ethanol (SRE) is currently considered a promising process for so-called synthesis gas (H2 and CO). The synthesis gas (syngas) can be obtained from various fuels among which natural gas is of special importance. The SRE 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 have been substantially studied in the past years as a promising reformer to study the thermochemical conversion of ethanol. A variety of researches have been approached in the experimental field and theoretical. This work has as main objective a theoretical modelling to describe the process variables of the SRE on the LPPB reformer. These process variables describe the specific aims as from each equation of a physical-mathematical model characterizing the performance from reformer. When the CH3CH2OH/H2O ratio decreases on the SRE method in LPPB reformer, the reaction temperature is notably increased. An increase of the ug,avg indicates a decrease on the reaction temperature profiles in LPPB reformer and, thus, a reduction in the heat release by the SRE method. An increase of the operating temperature has a significant role of the thermochemical conversion of CH3CH2OH because of the higher consumption of reactants from SRE's reactions.
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