Interplay of support chemistry and reaction conditions on copper catalyzed methanol steam reforming

Díaz‐Pérez, Manuel Antonio; Moya, Javier; Serrano‐Ruiz, Juan Carlos; Faria, Jimmy

doi:10.1021/acs.iecr.8b02488

Cited by 18 publications

(21 citation statements)

References 91 publications

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“…Cu/Al 2 O 3 −SiO 2 was deactivated rather early due to coke formation. 110 Apart from Al, promoters such as ZrO 2 and CeO 2 have also been reported. Lindstrom and Pettersson investigated various alumina-supported monolithic copper-based catalysts with and without zirconia doping.…”

Section: Cu-based Catalystsmentioning

confidence: 99%

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Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Ranjekar

Yadav

2021

Ind. Eng. Chem. Res.

181

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The hydrogen economy is being pursued quite vigorously since hydrogen is an important and green energy source with a variety of applications as fuel for transportation, fuel cell, feedstock, energy vector, reforming in refineries, carbon dioxide valorization, biomass conversion, etc. Steam reforming of alcohols is a well-established technique to obtain syngas. Methanol is viewed to be a lucrative alternative for fossil fuels, due to its flexibility in being generated from multiple sources, high energy density, and low operating temperatures. The catalysts used for reforming govern the methanol conversion rate and the ratio of gaseous products, i.e., H2, CO, and CO2. Group VIII–XII metals have been widely utilized for methanol steam reforming as they have a higher hydrogen yield. Several other catalysts and novel techniques have been developed and used to date. Quite a few strategies to enhance the performance of catalysts and reduce deactivation have been discussed. This review focuses on the metallic catalysts, mainly Cu, Pd, Zn, with different formulations and compositions for steam reforming of methanol (SRM). Active catalyst components, supports, and their interactions, along with different promoters, are reviewed, and their performances are critically analyzed. The various reaction mechanisms and reaction pathways have been identified and elaborated. A fundamental understanding of the functionality and structure of catalysts is required no matter which alcohol is used as a feedstock, and some general inferences can be obtained from polyhydroxyl feed for the steam reforming of methanol, which is the subject matter of this review. Particularly, the role of copper as a component in mono and multimetallic systems and the nature of support must be studied fundamentally to get high hydrogen yields. It is important to determine how metal support interactions, including oxygen transfer from reducible oxides to the metal site, influence the catalyst activity, selectivity, and stability. Further, the mechanism by which alloying affects the selectivity in multimetallic catalysts must be understood by using high-end characterizations.

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Section: Cu-based Catalystsmentioning

confidence: 99%

“…Cu/SiO 2 suffered from significant sintering during the reaction, while Cu/TiO 2 -rutile and -anatase had restricted particle size growth. Cu/Al 2 O 3 –SiO 2 was deactivated rather early due to coke formation …”

Section: Cu-based Catalystsmentioning

confidence: 99%

Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Ranjekar

Yadav

2021

Ind. Eng. Chem. Res.

181

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“…However, the main drawback of copper-based catalysts in the SRM is their catalytic deactivation due to the formation of coke at high temperatures [14], which covers the surface of the catalyst. In comparison with copper-based catalysts, the reports on Ru [15], Pt [16], and Pd [17] indicate that noble metal catalysts have inherently higher selectivity for methanol decompo-sition, resulting in higher CO production, but better long-term thermal stability in the SRM [5,8].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Various Metals on Hydrotalcite‐based Cu/Zn/Al Catalysts in Methanol Steam Reforming

Lin

et al. 2021

Chem Eng & Technol

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The catalytic properties of hydrotalcite‐based Cu/Zn/Al mixed oxides prepared by the incipient co‐precipitation method, in which various metals were doped through impregnation, were comparatively tested in the steam reforming of methanol (SRM). In addition, the catalysts were characterized in detail by a series of follow‐up surface techniques. Moreover, strong interaction and synergism between Ru and Cu species noticeably promoted methanol conversion and improved catalytic performance. Furthermore, an SRM reaction mechanism is proposed that rationalizes the relationship between copper dispersion on the surface and the size of the copper/oxygen interface where formed intermediates rearrange.

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“…As an ideal liquid fuel, methanol has a wide variety of sources, lower price, easy to store and transport, and has higher energy density. Therefore, the methanol can be favoured transformed to hydrogen by catalytic reforming reaction at relatively low temperatures (200-300℃) [1][2][3][4]. At present, the mainly applied methods of hydrogen production from methanol contained partial oxidation of methanol (POM) and steam reforming of methanol (SRM) [5].…”

Section: Introductionmentioning

confidence: 99%

“…CuO/ZnO/Al2O3 catalysts were widely used in steam reforming of methanol [8,9], because of its excellent performance during low temperature range and select hydrogen selectivity [3]. The mainly preparation methods for CuO/ZnO/Al2O3 catalysts were co-precipitation and hydrothermal methods.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Preparation Conditions on the Reaction Performance on Steam Reforming of Methanol in a Cu/Zn/Al model catalyst

Yao

et al. 2021

Preprint

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The model Cu/Zn/Al catalysts with different calcination temperature were prepared by hydrothermal method. The catalysts were characterized by XRD, BET, SEM, CO2-TPD, H2-TPR, TG, CH3OH-TPD and CO2+H2-TPSR. The effect of different calcination temperature on structure, stability and catalytic performance for methanol steam reforming at the conditions of 200-320℃ was also represented. The results of present study show that the different calcination temperature of Cu/Zn/Al catalysts had an obvious influence on the physical characteristics and catalytic performance of the methanol steam reforming.

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Interplay of support chemistry and reaction conditions on copper catalyzed methanol steam reforming

Cited by 18 publications

References 91 publications

Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Investigation of Various Metals on Hydrotalcite‐based Cu/Zn/Al Catalysts in Methanol Steam Reforming

Influence of the Preparation Conditions on the Reaction Performance on Steam Reforming of Methanol in a Cu/Zn/Al model catalyst

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