Mechanism of ethanol steam reforming on B12N12 and Al12N12 nano-cages: A theoretical study

2021 ◽  
pp. 103014
Author(s):  
Fatemeh Mamusi ◽  
Davood Farmanzadeh
2012 ◽  
Vol 37 (19) ◽  
pp. 14887-14894 ◽  
Author(s):  
Yanina M. Bruschi ◽  
Eduardo López ◽  
Noemí S. Schbib ◽  
Marisa N. Pedernera ◽  
Daniel O. Borio

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 332
Author(s):  
Ludmilla Bobrova ◽  
Nikita Eremeev ◽  
Nadezhda Vernikovskaya ◽  
Vladislav Sadykov ◽  
Oleg Smorygo

The performance of catalytic membrane reactors (CMRs) depends on the specific details of interactions at different levels between catalytic and separation parts. A clear understanding of decisive factors affecting their operational parameters can be provided via mathematical simulations. In the present paper, main results of numerical studies of ethanol steam reforming, followed by downstream hydrogen permeation through an asymmetric supported membrane, are reported. The membrane module consists of a thin selective layer supported on a substrate with graded porous structure. One-dimensional isothermal reaction–transport model for the CMR has been developed, and its validation has been carried out by using performance data from a lab-scale reactor with a disk-shaped membrane. Simulations demonstrate the model’s capabilities to analyze local concentrations gradients, as required to provide accurate estimates of the relationship between structure–property–performance. It was shown that transport properties of multilayer asymmetric membranes are highly related to the structural properties of each single layer.


2012 ◽  
Vol 78 (787) ◽  
pp. 415-419 ◽  
Author(s):  
Toshio SHINOKI ◽  
Tsuyoshi MAEDA ◽  
Jiro FUNAKI ◽  
Katsuya HIRATA

Author(s):  
Pablo Giunta ◽  
Norma Amadeo ◽  
Miguel Laborde

The aim of this work is to design an ethanol steam reformer to produce a hydrogen stream capable of feeding a 60 kW PEM fuel cell applying the plug flow model, considering the presence of the catalyst bed (heterogeneous model). The Dusty-Gas Model is employed for the catalyst, since it better predicts the fluxes of a multicomponent mixture. Moreover, this model has shown to be computationally more robust than the Fickian Model. A power law-type kinetics was used. Results showed that it is possible to carry out the ethanol steam reforming in a compact device (1.66 x 10 -5 to 5.27 x 10 -5 m3). It was also observed that this process is determined by heat transfer.


2015 ◽  
Vol 40 (15) ◽  
pp. 5256-5263 ◽  
Author(s):  
Lukasz Bednarczuk ◽  
Pilar Ramírez de la Piscina ◽  
Narcís Homs

2022 ◽  
Author(s):  
Gabriella R. Ferreira ◽  
Francisco G. E. Nogueira ◽  
Alessandra F. Lucrédio ◽  
Elisabete M. Assaf

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