Oxidative steam reforming of ethanol over Ru–Al2O3 catalyst in a dense Pd–Ag membrane reactor to produce hydrogen for PEM fuel cells

The exploitation of rich in sugars lingo-cellulosic residue of carob pods for bio-ethanol and bio-electricity generation has been investigated. The process could take place in two (2) or three (3) stages including: a) bio-ethanol production originated from carob pods, b) direct exploitation of bio-ethanol to fuel cells for electricity generation, and/or c) steam reforming of ethanol for hydrogen production and exploitation of the produced hydrogen in fuel cells for electricity generation. Surveying the scientific literature it has been found that the production of bio-ethanol from carob pods and electricity fed to the ethanol fuel cells for hydrogen production do not present any technological difficulties. The economic viability of bio-ethanol production from carob pods has not yet been proved and thus commercial plants do not yet exist. The use, however, of direct fed ethanol fuel cells and steam reforming of ethanol for hydrogen production are promising processes which require, however, further research and development (R&D) before reaching demonstration and possibly a commercial scale. Therefore the realization of power generation from carob pods requires initially the investigation and indication of the appropriate solution of various technological problems. This should be done in a way that the whole integrated process would be cost effective. In addition since the carob tree grows in marginal and partly desertified areas mainly around the Mediterranean region, the use of carob’s fruit for power generation via upgrading of its waste by biochemical and electrochemical processes will partly replace fossil fuels generated electricity and will promote sustainability.

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04/00377 Steam reforming of methanol on Ni/Al2O3 catalyst in a Pd-membrane reactor

Fuel and Energy Abstracts ◽

10.1016/s0140-6701(04)91579-2 ◽

2004 ◽

Vol 45 (1) ◽

pp. 44

Keyword(s):

Steam Reforming ◽

Membrane Reactor ◽

Steam Reforming Of Methanol ◽

Pd Membrane ◽

Al2o3 Catalyst

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Performance of Rh/Al2O3 catalyst in the steam reforming of ethanol: H2 production for MCFC

Applied Catalysis A General ◽

10.1016/s0926-860x(03)00189-3 ◽

2003 ◽

Vol 249 (1) ◽

pp. 119-128 ◽

Cited By ~ 166

Author(s):

S Cavallaro ◽

V Chiodo ◽

S Freni ◽

N Mondello ◽

F Frusteri

Keyword(s):

Steam Reforming ◽

H2 Production ◽

Steam Reforming Of Ethanol ◽

Al2o3 Catalyst

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Recent advances in membrane reactors for hydrogen production by steam reforming of ethanol as a renewable resource

Reviews in Chemical Engineering ◽

10.1515/revce-2017-0083 ◽

2019 ◽

Vol 35 (3) ◽

pp. 377-392 ◽

Cited By ~ 6

Author(s):

Majid Taghizadeh ◽

Fatemeh Aghili

Keyword(s):

Noble Metal ◽

Steam Reforming ◽

Membrane Reactor ◽

Renewable Resource ◽

Packed Bed ◽

Membrane Reactors ◽

Hydrogen Yield ◽

Recent Advances ◽

Steam Reforming Of Ethanol ◽

The Impact

AbstractDuring the last decade, hydrogen has attracted lots of interest due to its potential as an energy carrier. Ethanol is one of the renewable resources that can be considered as a sustainable candidate for hydrogen generation. In this regard, producing hydrogen from ethanol steam reforming (ESR) would be an environmentally friendly process. Commonly, ESR is performed in packed bed reactors; however, this process needs several stages for hydrogen separation with desired purity. Recently, the concept of a membrane reactor, an attractive device integrating catalytic reactions and separation processes in a single unit, has allowed obtaining a smaller reactor volume, higher conversion degrees, and higher hydrogen yield in comparison to conventional reactors. This paper deals with recent advances in ESR in terms of catalyst utilization and the fundamental of membranes. The main part of this paper discusses the performance of different membrane reactor configurations, mainly packed bed membrane reactors, fluidized bed membrane reactors, and micro-membrane reactors. In addition, a short overview is given about the impact of ESR via different catalysts such as noble metal, non-noble metal, and bi-metallic catalysts.

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