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Catalysts 2017, 7(10), 310; doi:10.3390/catal7100310

Water–Gas Shift Reaction over Ni/CeO2 Catalysts

1
Boreskov Institute of Catalysis, Prospekt Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia
2
Novosibirsk State University, Pirogova street, 2, 630090 Novosibirsk, Russia
*
Author to whom correspondence should be addressed.
Received: 28 August 2017 / Revised: 2 October 2017 / Accepted: 7 October 2017 / Published: 20 October 2017
(This article belongs to the Special Issue Nanostructured Materials for Applications in Heterogeneous Catalysis)

Abstract

This paper reports the results of a study of a water–gas shift reaction over nickel–ceria catalysts with different metal loading. Within this study, the overall CO conversion and observed kinetic behavior were investigated over the temperature range of 250–550 °C in different reactor configurations (fixed-bed and microchannel reactors). The quasi-steady state kinetics of the CO water–gas shift reaction was studied for fractions of Ni-containing cerium oxide catalysts in fixed-bed experiments at lab-scale level using a very dilute gas (1% CO + 1.8% H2O in Не). A set of experiments with a microchannel reactor was performed using the feed composition (CO:H2O:H2:N2 = 1:2:2:2), representing a product gas from methane partial oxidation. The results were interpreted using computational models. The kinetic parameters were determined by regression analysis, while mechanistic aspects were considered only briefly. Simulation of the WGS reaction in the microreactor was also carried out by using the COMSOL Multiphysics program. View Full-Text
Keywords: water–gas shift; nickel–ceria catalyst; fraction; microchannel water–gas shift; nickel–ceria catalyst; fraction; microchannel
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Bobrova, L.; Andreev, D.; Ivanov, E.; Mezentseva, N.; Simonov, M.; Makarshin, L.; Gribovskii, A.; Sadykov, V. Water–Gas Shift Reaction over Ni/CeO2 Catalysts. Catalysts 2017, 7, 310.

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