A microstructured reactor/heat-exchanger for the water–gas shift reaction operated in the 533–673K range

Dubrovskiy, Anton; Rebrov, Evgeny V.; Kuznetsov, S. A.; Schouten, J.C.

doi:10.1016/j.cattod.2009.07.037

Cited by 27 publications

(13 citation statements)

References 15 publications

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“…However, considering that the vast majority of modern chemical processes utilise heterogeneous catalysts to replace stoichiometric reactions due to obvious economic and environmental advantages, the application of catalytic coatings in microreactors is disproportionately scarcely studied [17]. A few gas-phase heterogeneously catalysed reactions have been studied in various reactions such as Fisher-Tropsch synthesis, CO2 hydrogenation, water gas shift [18], preferential CO oxidation [19], and complete oxidation of organic compounds [20] demonstrating a 2-5 fold increase in reaction rates compared to conventional reactors [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Scale up study of capillary microreactors in solvent-free semihydrogenation of 2‐methyl‐3‐butyn‐2‐ol

Cherkasov

Al-Rawashdeh²,

Ibhadon

et al. 2016

Catalysis Today

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warwick.ac.uk/lib-publicationsOriginal citation: Cherkasov, Nikolay, Al-Rawashdeh, Ma 'moun, Ibhadon, Alex O. and Rebrov, Evgeny V.. (2016) Scale up study of capillary microreactors in solvent-free semihydrogenation of 2-methyl-3-butyn-2-ol. Catalysis Today, 273 . pp. 205-212. Permanent WRAP URL:http://wrap.warwick.ac.uk/78678 Copyright and reuse:The Warwick Research Archive Portal (WRAP) makes this work by researchers of the University of Warwick available open access under the following conditions. Copyright © and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable the material made available in WRAP has been checked for eligibility before being made available.Copies of full items can be used for personal research or study, educational, or not-for-profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP url' above for details on accessing the published version and note that access may require a subscription. Keywords: Semihydrogenation; catalytic coatings; microreactor; Palladium; alkynol; acetylene. Highlights:-Capillary reactors with a diameter of 0.53 and 1.6 mm were coated with a Pd/ZnO catalyst -The alkene selectivity above 97% was obtained in the hydrogenation of 2-methyl-3-butyn-2-ol -At a coating thickness of 6 µm, the onset of internal diffusion limitations was observed -A throughput of 28 kg/day per coated channel can be reached according to the reaction kinetics Graphical abstract:

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Section: Introductionmentioning

confidence: 99%

Scale up study of capillary microreactors in solvent-free semihydrogenation of 2‐methyl‐3‐butyn‐2‐ol

Cherkasov

Al-Rawashdeh²,

Ibhadon

et al. 2016

Catalysis Today

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“…Among the prepared catalysts, Ru and Rh supported on Al 2 O 3 led to the highest CO conversion, but Ru/Al 2 O 3 was an active catalyst for methanation, too. Dubrovskiy et al [101] designed and constructed a novel micro-structured reactor/heat exchanger (single-stage MTS reactor) based on Rebrov et al [100] researches and Mo 2 C/Mo catalyst. The possibility of the WGS reaction by using noble metals and metals supported on ceria in the temperature range of 300°C to 1000°C, were studied by Wheeler et al [62].…”

Section: Gold Based Catalystsmentioning

confidence: 99%

“…There has been no evidence of methanation activity on both Mo 2 C/Mo coatings below 350°C. Dubrovskiy et al [101] designed and constructed a novel micro-structured reactor/heat exchanger (single-stage MTS reactor) based on Rebrov et al [100] researches and Mo 2 C/Mo catalyst.…”

Section: Gold Based Catalystsmentioning

confidence: 99%

Medium‐Temperature Shift Catalysts for Hydrogen Purification in a Single‐Stage Reactor

Alijani¹,

Irankhah²

2013

Chem Eng & Technol

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Interest regarding the WGS process has grown significantly, because of the recent progression in fuel cells as a clean technology for power generation. Due to the large volume and cost of WGS conventional two-stage reactors, and also problems related to pyrophoricity and lengthy reduction of customary catalysts, the current challenge is to develop more active and stable catalysts that convert CO in a single-stage medium temperature shift (MTS, 280-360°C) reactor, which is applicable in small-scale fuel cells. Advanced and newly developed catalytic systems for hydrogen purification via MTS reactions are reviewed and discussed in this study. Pt-based catalysts on reducible oxide supports, e.g., CeO 2 and TiO 2 , have mainly been used for this reaction. It is known that ceria is the most applicable active and stable support and highly promising for MTS reactions, considering its high oxygen storage capacity and mobility of surface oxygen/hydroxyl groups. New studies investigate modified ceria, e.g., CeZr, to improve its catalytic properties. Figure 8. The effect of Cu-loading on the WGS reaction over Cu-CeO 2 catalyst at 150-360°C [91].

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“…We have studied precious metal catalysts [15] and molybdenum carbides [12,[16][17][18][19] in the medium temperature range. Among the precious metals, a Pt/Mo2C catalyst has demonstrated the most promising results [5], with the temperature of 50% conversion (T50%) of 180 ºC at a space velocity (SV) of 125,000 h -1 .…”

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confidence: 99%

A highly active and synergistic Pt/Mo2C/Al2O3 catalyst for water-gas shift reaction

Osman

Abu‐Dahrieh

Cherkasov

et al. 2018

Molecular Catalysis

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Evgeny (2018) A highly active and synergistic Pt/Mo 2 C/Al 2 O 3 catalyst for water-gas shift reaction. Molecular Catalysis, AbstractCatalysts consisting of Pt and Cu supported on Mo2C/η-Al2O3, Mo2C/γ-Al2O3 or Mo2C were prepared and used for the low-temperature water gas shift reaction. The catalysts were characterized by elemental analysis, X-ray diffraction (XRD), temperature-programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The catalysts were studied in water gas shift reaction (WGSR) with a reaction mixture containing 11 % CO, 43 % H2, 6% CO2, 21 % H2O (real feed composition mixture from the reformer) andbalance He, with a reaction temperature range of 180-300 °C at a space velocity (SV) of 125,000 h -1 . Catalyst supports (η-Al2O3 and γ-Al2O3), led to different synergetic effect between the two most active phases of Pt metal and Mo2C. Pt/ Mo2C/η-Al2O3 is a promising catalyst (44% conversion at 180°C) due to the close interaction between Pt and Mo2C phases on the surface of the catalyst. The 4 Pt-Mo2C showed the highest activity where the temperature at which 50% 3 conversion observed was at only 180 ºC with SV of 125,000 h -1 and constant stability over 85 hours.

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A microstructured reactor/heat-exchanger for the water–gas shift reaction operated in the 533–673K range

Cited by 27 publications

References 15 publications

Scale up study of capillary microreactors in solvent-free semihydrogenation of 2‐methyl‐3‐butyn‐2‐ol

Scale up study of capillary microreactors in solvent-free semihydrogenation of 2‐methyl‐3‐butyn‐2‐ol

Medium‐Temperature Shift Catalysts for Hydrogen Purification in a Single‐Stage Reactor

A highly active and synergistic Pt/Mo2C/Al2O3 catalyst for water-gas shift reaction

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