Methanol steam reforming in a dense Pd–Ag membrane reactor: The pressure and WHSV effects on CO-free H2 production

Iulianelli, Adolfo; Longo, T.; Basile, Angelo

doi:10.1016/j.memsci.2008.05.021

Cited by 57 publications

(9 citation statements)

References 23 publications

(34 reference statements)

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“…In recent years, much attention has been focused on the high electrocatalytic activity for formic acid oxidation on Pd and Pd-based catalysts [71,[73][74][75][76][77]. Numerous researchers recently [76][77][78][79][80][81][82][83] have stated the Pd-based membrane reactor (MR) performance in the methanol steam reforming (MSR) reaction. For the steam reforming process, the active and stable catalysts for the dry reforming of methane (DRM) reaction are mostly precious metals, such as Rh and Pd, which are less prone to coke deposition and deactivation at high temperature [82] [84].…”

Section: Palladium Catalystmentioning

confidence: 99%

Hydrogen Production from Catalytic Polyethylene Terephthalate Waste Reforming Reaction, an overview

Nabgan

Abdullah

et al. 2020

Catalysis for Sustainable Energy

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As a sustainable and renewable energy carrier for transition, hydrogen is considered as a key future fuel for the low carbon energy systems. During the past few decades, attention has been given to the conversion of waste materials, including plastics to the production of hydrogen. Studies in this field are of great importance because they resolve numerous problems brought about by plastic waste with other forms of waste. Polyethylene terephthalate (PET) is one of the major products of plastic waste which constitutes a major threat to environmental conservation efforts and harms living organism. Phenol has been chosen in this study as a solvent for PET to produce hydrogen because of unwanted liquid product in the bio-oil. This research investigates catalytic steam reforming of phenol with dissolved PET for hydrogen production. The aim of this study was the review of a highly active and stable catalyst for hydrogen production from steam reforming waste products. The analysis of product composition indicated that steam reforming of PET-phenol generally produced a high amount of aliphatic branched-chain compounds, together with a moderate amount of cyclic compounds. The reaction conditions also led to the alkylation of phenol by the reforming products from the PET-phenol solution with and without the catalyst. In conclusion, this study explored new ways to use l product derived from waste plastic materials. It provides a promising clean technology, which employed polyethylene terephthalate waste dissolved in phenol (as a solvent) for hydrogen production.

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Section: Palladium Catalystmentioning

confidence: 99%

Hydrogen Production from Catalytic Polyethylene Terephthalate Waste Reforming Reaction, an overview

Nabgan

Abdullah

et al. 2020

Catalysis for Sustainable Energy

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“…In the meanwhile, according to the scientific literature, the methanol steam reforming (MSR) reaction has been studied a lot from an experimental point of view as attractive and promising process for generating hydrogen also in combination with inorganic MRs [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Progress in Methanol Steam Reforming Modelling via Membrane Reactors Technology

2018

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Hydrogen has attracted growing attention for various uses, and, particularly, for polymer electrolyte membrane fuel cells (PEMFCs) supply. However, PEMFCs need high grade hydrogen, which is difficult in storing and transportation. To solve these issues, hydrogen generation from alcohols and hydrocarbons steam reforming reaction has gained great consideration. Among the various renewable fuels, methanol is an interesting hydrogen source because at room temperature it is liquid, and then, easy to handle and to store. Furthermore, it shows a relatively high H/C ratio and low reforming temperature, ranging from 200 to 300 °C. In the field of hydrogen generation from methanol steam reforming reaction, a consistent literature is noticeable. Despite various reviews that are more devoted to describe from an experimental point of view the state of the art about methanol steam reforming reaction carried in conventional and membrane reactors, this work describes the progress in the last two decades about the modelling studies on the same reaction in membrane reactors.

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“…A growing attention is then been devoted to Pd-composite membranes that have -among others -the advantage of lower cost and higher permeability because of the reduced palladium content utilized in these membranes [13][14][15][16][17][18]. Numerous studies deal with MSR reaction carried out in both dense and composite Pd-based MRs [17][18][19][20][21][22][23][24][25]. In most of them, it has been demonstrated that these MRs made possible higher performances than conventional packed bed reactors (CR) in terms of methanol conversion and hydrogen yield with the further benefit of producing high-grade hydrogen.…”

Section: Introductionmentioning

confidence: 99%

“…In most of them, it has been demonstrated that these MRs made possible higher performances than conventional packed bed reactors (CR) in terms of methanol conversion and hydrogen yield with the further benefit of producing high-grade hydrogen. Dense self-supported Pd-Ag membranes with a thickness of 50 µm and composite Pd-based membranes with Pd-layers thicker than 10 µm were used in previous studies of steam reforming of methanol [18,[21][22][23]. This work uses a thin composite membrane of ca.…”

Section: Introductionmentioning

confidence: 99%

CuO/ZnO catalysts for methanol steam reforming: The role of the support polarity ratio and surface area

Mateos-Pedrero

Silva

Tanaka

et al. 2015

Applied Catalysis B: Environmental

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117

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The effect of surface area and polarity ratio of ZnO support on the catalytic properties of CuO/ZnO catalyst for methanol steam reforming (MSR) are studied. The surface area of ZnO was varied changing the calcination temperature, and its polarity ratio was modified using different Zn precursors, zinc acetate and zinc nitrate. It was found that the copper dispersion and copper surface area increase with the surface area of the ZnO support, and the polarity ratio of ZnO strongly influences the reducibility of copper species. A higher polarity ratio promotes the reducibility, which is attributed to a strong interaction between copper and the more polar ZnO support. Interestingly, it was observed that the selectivity of CuO/ZnO catalysts (lower CO yield) increases with the polarity ratio of ZnO carriers. As another key result, CuO/ZnOAc375 catalyst has proven to be more selective (up to 90%) than a reference CuO/ZnO/Al2O3 sample (G66-MR, Süd Chemie).The activity of the best performing catalyst, CuO/ZnOAc-375, was assessed in a Pd-composite membrane reactor and in a conventional packed-bed reactor. A hydrogen recovery of ca. 75% and a hydrogen permeate purity of more than 90% was obtained. The Pd-based membrane reactor allowed to improve the methanol conversion, by partially suppressing the methanol steam reforming backward reaction, besides upgrading the reformate hydrogen purity for use in HT-PEMFC.2

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Methanol steam reforming in a dense Pd–Ag membrane reactor: The pressure and WHSV effects on CO-free H2 production

Cited by 57 publications

References 23 publications

Hydrogen Production from Catalytic Polyethylene Terephthalate Waste Reforming Reaction, an overview

Hydrogen Production from Catalytic Polyethylene Terephthalate Waste Reforming Reaction, an overview

Progress in Methanol Steam Reforming Modelling via Membrane Reactors Technology

CuO/ZnO catalysts for methanol steam reforming: The role of the support polarity ratio and surface area

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