Ethanol steam reforming over Co Ru nanoparticles supported on highly porous polymer-based carbon material

One-step preparation method of metal-carbon nanocomposites based on bimetallic Co–Ru nanoparticles supported and IR carbonized polyacrylonitrile was proposed. IR pyrolysis of the precursor based on joint solution of polyacrylonitrile and metal compounds leads to the simultaneous formation of carbon support and bimetallic metal nanoparticles. The metal reduction occures due to the release of hydrogen during decomposition of backbone polymer chain. Furthermore, IR radiation shortens fabrication time significantly. It was shown that the presence of cobalt and ruthenium in the system provides the creation of alloy Co–Ru nanoparticles. In addition, cobalt provides a formation of structured carbon shells around bimetallic nanoparticles. The nanocomposites were tested as catalysts for the hydrogen production through ethanol steam reforming. The dependence of structural and functional properties on the metal loading was demonstrated. The high yield of hydrogen was recorded for all three samples, whereas the by-product yield was relatively low.

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Catalytic behavior of Ru nanoparticles supported on carbon fibers for the ethanol steam reforming reaction

Catalysis Communications ◽

10.1016/j.catcom.2018.05.019 ◽

2018 ◽

Vol 114 ◽

pp. 19-23 ◽

Cited By ~ 9

Author(s):

María Laura Bosko ◽

Nicolás Ferreira ◽

Antonella Catena ◽

M. Sergio Moreno ◽

John F. Múnera ◽

...

Keyword(s):

Carbon Fibers ◽

Steam Reforming ◽

Ethanol Steam Reforming ◽

Catalytic Behavior ◽

Ru Nanoparticles ◽

Ethanol Steam

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Production of hydrogen by ethanol steam reforming using Ni–Co-ex-hydrotalcite catalysts stabilized with tungsten oxides

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2020.11.143 ◽

2020 ◽

Author(s):

José L. Contreras ◽

Anabel Figueroa ◽

Beatriz Zeifert ◽

José Salmones ◽

Gustavo A. Fuentes ◽

...

Keyword(s):

Steam Reforming ◽

Ethanol Steam Reforming ◽

Tungsten Oxides ◽

Production Of Hydrogen ◽

Ethanol Steam

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Effect of Asymmetric Membrane Structure on Hydrogen Transport Resistance and Performance of a Catalytic Membrane Reactor for Ethanol Steam Reforming

Membranes ◽

10.3390/membranes11050332 ◽

2021 ◽

Vol 11 (5) ◽

pp. 332

Author(s):

Ludmilla Bobrova ◽

Nikita Eremeev ◽

Nadezhda Vernikovskaya ◽

Vladislav Sadykov ◽

Oleg Smorygo

Keyword(s):

Steam Reforming ◽

Transport Model ◽

Hydrogen Permeation ◽

Ethanol Steam Reforming ◽

Clear Understanding ◽

Catalytic Membrane ◽

Structure Property ◽

Asymmetric Membrane ◽

Supported Membrane ◽

Ethanol Steam

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.

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Effects of LHSV and Reaction Temperature upon Ethanol-Steam-Reforming Performance

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B ◽

10.1299/kikaib.78.415 ◽

2012 ◽

Vol 78 (787) ◽

pp. 415-419 ◽

Cited By ~ 3

Author(s):

Toshio SHINOKI ◽

Tsuyoshi MAEDA ◽

Jiro FUNAKI ◽

Katsuya HIRATA

Keyword(s):

Reaction Temperature ◽

Steam Reforming ◽

Ethanol Steam Reforming ◽

Ethanol Steam

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Ethanol steam reforming over Rh/CexZr1−xO2 catalysts: Impact of the CO–CO2–CH4 interconversion reactions on the H2 production

Applied Catalysis B Environmental ◽

10.1016/j.apcatb.2007.10.002 ◽

2008 ◽

Vol 79 (1) ◽

pp. 17-25 ◽

Cited By ~ 66

Author(s):

Anne Birot ◽

Florence Epron ◽

Claude Descorme ◽

Daniel Duprez

Keyword(s):

Steam Reforming ◽

H2 Production ◽

Ethanol Steam Reforming ◽

Ethanol Steam

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Hydrogen Production from Ethanol Steam Reforming: Fixed Bed Reactor Design

International Journal of Chemical Reactor Engineering ◽

10.2202/1542-6580.1582 ◽

2008 ◽

Vol 6 (1) ◽

Cited By ~ 2

Author(s):

Pablo Giunta ◽

Norma Amadeo ◽

Miguel Laborde

Keyword(s):

Steam Reforming ◽

Flow Model ◽

Multicomponent Mixture ◽

Plug Flow ◽

Fixed Bed ◽

Fixed Bed Reactor ◽

Ethanol Steam Reforming ◽

Heterogeneous Model ◽

Ethanol Steam ◽

Hydrogen Stream

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.

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