Study on the hydrogen production from methanol steam reforming in supported palladium membrane reactor

Lin, Yu-Ming; Rei, Min-Hon

doi:10.1016/s0920-5861(01)00267-x

Cited by 157 publications

(67 citation statements)

References 15 publications

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“…However, low-temperature reforming is gaining increasing interest [109], particularly in membrane reactor applications where the membrane allows sufficiently high H 2 flux and has a high separation factor [110]. Reforming temperatures for methanol, on the other hand, are relatively low (250-350°C), and methanol has the advantage that it can generally be obtained in consistently high purity (sulfur content <5 ppm), compared to other fuels [111].…”

Section: Application Regimes Of Proton Conductors For H 2 Separationmentioning

confidence: 99%

Review of proton conductors for hydrogen separation

Phair

Badwal

2006

Ionics

220

132

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There is a global push to develop a range of hydrogen technologies for timely adoption of the hydrogen economy. This is critical in view of the depleting oil reserves and looming transport fuel shortage, global warming, and increasing pollution. Molecular hydrogen (H 2 ) can be generated by a number of renewable and fossil-fuel-based resources. However, given the high cost of H 2 generation by renewable energy at this stage, fossil or carbon fuels are likely to meet the short-to medium-term demand for hydrogen. In view of this, effective technologies are required for the separation of H 2 from a gas feed (by-products of coal or bio-mass gasification plants, or gases from fossil fuel partial oxidation or reforming) consisting mainly of H 2 and CO 2 with small quantities of other gases such as CH 4 , CO, H 2 O, and traces of sulphur compounds. Several technologies are under development for hydrogen separation. One such technology is based on ion transport membranes, which conduct protons or both protons and electrons. Although these materials have been considered for other applications, such as gas sensors, fuel cells and water electrolysis, the interest in their use as gas separation membranes has developed only recently. In this paper, various classes of proton-conducting materials have been reviewed with specific emphasis on their potential use as H 2 separation membranes in the industrial processes of coal gasification, natural gas reforming, methanol reforming and the watergas shift (WGS) reaction. Key material requirements for their use in these applications have been discussed.

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Section: Application Regimes Of Proton Conductors For H 2 Separationmentioning

confidence: 99%

Review of proton conductors for hydrogen separation

Phair

Badwal

2006

Ionics

220

132

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“…Owing to the combination of these functions, Pd-based catalytic membrane reactors have received much attention in recent years. The removal of hydrogen from a reaction medium is proved to be effective in shifting equilibrium-limited dehydrogenation reactions toward the product side [3][4][5][6][7]. For hydrogenation reactions, the controlled introduction of hydrogen often results in a high selectivity of target products [1,2].…”

Section: Introductionmentioning

confidence: 99%

Preparation of palladium membrane over porous stainless steel tube modified with zirconium oxide

et al. 2004

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“…This high purity hydrogen can be obtained using a Pd-based purification process or, with advantages, using a Pdbased membrane reactor. However, Pd-membranes are poisoned by CO, which adsorbs on the membrane surfaces inhibiting the hydrogen permeation [12]. Pdbased composite membranes are characterized by a thin Pd layer deposited onto porous substrates and show high permeability and selectivity to hydrogen [13][14][15][16].…”

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

116

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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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Study on the hydrogen production from methanol steam reforming in supported palladium membrane reactor

Cited by 157 publications

References 15 publications

Review of proton conductors for hydrogen separation

Review of proton conductors for hydrogen separation

Preparation of palladium membrane over porous stainless steel tube modified with zirconium oxide

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

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