Reforming of methanol to produce hydrogen over the Au/ZnO catalyst

Tang, Chih‐Wei; Chen, Yeong-Jey; Yeh, C.L.; Wu, Ruei-Ci; Wang, Chih-Chia

doi:10.1016/j.ijhydene.2020.09.205

Cited by 24 publications

(10 citation statements)

References 55 publications

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“…In some of the early experiments, scientists evaluated four methanol-reforming reactions [9]. The following is a rough description of these four methods.…”

Section: Hydrogen Production From Methanolmentioning

confidence: 99%

“…Some studies indicate that lots of carbon monoxide can damage the catalyst in the fuel cell and then affect hydrogen production. To improve efficiency and the amount of hydrogen, the industry uses a method called water gas shift Eq (2) to absorb the generated carbon monoxide and make it generate hydrogen and non-toxic carbon dioxide again [9]. When the content of carbon monoxide is more than 10%, people need to use the water-gas conversion method to absorb by-products many times [9].…”

Section: Decomposition Of Methanolmentioning

confidence: 99%

“…In 1992, copper-based catalysts were used in this field, achieving the goals of unidirectional conversion of methanol up to 99%, selectivity of hydrogen up to 99.5%, and low content by-products such as carbon monoxide and methane. SRM has become the most productive method of hydrogen quantity, only this process still needs massive heating to make the water become steam [9].…”

Section: Steam Reforming Of Methanolmentioning

confidence: 99%

“…According to the Gibb free energy, when ΔG is a negative value, the reaction is spontaneous, and this also means the reaction does not need external energy, as shown in Eq (4). The bad is POM method produces hydrogen with a low content of only 40% [9].…”

Section: Partial Oxidation Of Methanolmentioning

confidence: 99%

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Hydrogen energy production, storage methods, and applications for power generation

Shi¹

2022

HSET

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Nowadays, the transformation of energy structure has become an important task for society. The advantages of hydrogen energy also meet the criteria of people's choice of energy. This paper introduces hydrogen production, storage methods, and their application for the power generation. In hydrogen production part, POM is the most satisfactory of four methanol to hydrogen methods as this reaction does not require any energy and can be more than 50% efficient. In terms of photolytic water technology, Ti- and Zr-based Photocatalysts, Ta- and Nb-Based Photocatalysts, Ga and Ge-Based Photocatalysts have been applied to increase the reaction rate, in addition, the device has the advantage of a small footprint, ease of operation and high measurement accuracy. In the microbial hydrogen production section, experiments have shown that hydrogen production is highest in a thermally shocked environment, and that genetic modification of the organisms at the molecular level can also increase hydrogen production. For the hydrogen power generation, the PEMFC is by far the most used experimental product for grid-connected power generation. In the future, researchers should focus on solving various existing problems and developing more economical and efficient hydrogen power generation systems to realize the large-scale use of clean energy. Meanwhile, this paper expects to find better solutions to solve existing problems.

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“…In some of the early experiments, scientists evaluated four methanol-reforming reactions [9]. The following is a rough description of these four methods.…”

Section: Hydrogen Production From Methanolmentioning

confidence: 99%

Section: Decomposition Of Methanolmentioning

confidence: 99%

Section: Steam Reforming Of Methanolmentioning

confidence: 99%

Section: Partial Oxidation Of Methanolmentioning

confidence: 99%

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Hydrogen energy production, storage methods, and applications for power generation

Shi¹

2022

HSET

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“…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]. The considerable thermal was released during the POM process, leading to it was difficult to control the reaction temperatures, and the catalyst easy to sinter and produces less hydrogen.…”

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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Highly basic and active ZnO–x% K₂O nanocomposite catalysts for the production of methyl ethyl ketone biofuel

Halawy

Osman

Rooney

2022

Energy Science & Engineering

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Herein we demonstrate the preparation and characterization of nanocrystalline ZnO, either pure or promoted with 1–10 wt.% K2O. All catalysts calcined at 400°C were in the nano‐crystallite scale as confirmed by X‐ray powder diffraction analysis in the 22.9–28.0 nm range. According to the CO2‐temperature‐programmed desorption study using thermogravimetric analysis and differential scanning calorimetry techniques, they have a broad spectrum of surface basic sites. Because of the significance of methyl ethyl ketone (MEK) as a next‐generation biofuel candidate with high‐octane, low boiling point, and relatively high vapor pressure. The prepared catalysts were examined during the direct production of MEK via 2‐butanol (2B) dehydrogenation. Among catalysts tested, ZnO promoted with 1% K2O showed a superior catalytic activity towards the conversion of 2B to MEK, that is, 71.7% at a reaction temperature of 275°C. The selectivity for the production of MEK over all catalysts was ≥95% across all catalysts when using N2‐gas as a carrier. The use of airflow in this reaction resulted in a clear loss of selectivity toward MEK production as well as the appearance of undesirable products such as acetone and methanol. All catalytic properties of catalysts, particularly those of moderate strength, were highly correlated with the distribution of surface basic sites. Finally, a reaction mechanism was proposed for the dehydrogenation of 2B, followed by the partial oxidation of MEK.

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Reforming of methanol to produce hydrogen over the Au/ZnO catalyst

Cited by 24 publications

References 55 publications

Hydrogen energy production, storage methods, and applications for power generation

Hydrogen energy production, storage methods, and applications for power generation

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

Highly basic and active ZnO–x% K₂O nanocomposite catalysts for the production of methyl ethyl ketone biofuel

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Reforming of methanol to produce hydrogen over the Au/ZnO catalyst

Cited by 24 publications

References 55 publications

Hydrogen energy production, storage methods, and applications for power generation

Hydrogen energy production, storage methods, and applications for power generation

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

Highly basic and active ZnO–x% K2O nanocomposite catalysts for the production of methyl ethyl ketone biofuel

Contact Info

Product

Resources

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Highly basic and active ZnO–x% K₂O nanocomposite catalysts for the production of methyl ethyl ketone biofuel