The origin of rhodium promotion of Fe3O4–Cr2O3 catalysts for the high-temperature water–gas shift reaction

Lei, Yongmei; Cant, Noel W.; Trimm, D.L.

doi:10.1016/j.jcat.2006.01.033

Cited by 67 publications

(37 citation statements)

References 15 publications

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“…1 For example, potential promotional roles of Co, Bu, Ag, Ba, Ce for Fe-Cr-O catalysts were examined. [2][3][4][5][6][7][8][9][10] Fe-Cu-Al-O catalysts 2,3,9 reported recently exhibit a comparable catalytic performance to Fe-Cr-O and other Fe-based catalysts. 8 Cu is considered as a promoter for the high temperature WGS catalysts, Fe-Cu-Al-O.…”

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confidence: 99%

The role of copper in catalytic performance of a Fe–Cu–Al–O catalyst for water gas shift reaction

Wang

Zhang

et al. 2013

Chem. Commun.

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A Fe-Cu-Al-O water gas shift catalyst with a Fe : Cu atomic ratio of 4 : 1 upon pretreatment at 350 8C in H 2 exhibits a conversion higher than a physical mixture of Fe-Al-O and Cu-Al-O by B40% over a temperature range of 300 8C-450 8C. In situ ambient pressure X-ray photoelectron spectroscopy studies suggest that the surface region of Fe-Cu-Al-O was restructured into a double-layer structure consisting of a surface layer of

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confidence: 99%

The role of copper in catalytic performance of a Fe–Cu–Al–O catalyst for water gas shift reaction

Wang

Zhang

et al. 2013

Chem. Commun.

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“…Different catalysts have been developed for WGS reactions, including Fe-Cr based high temperature catalysts, Cu-Zn-Al based low temperature catalysts and Co-Mo based sulfur-tolerant catalysts [26,27]. Co-Mo catalyst can be used in a wide range of temperature.…”

Section: Water-gas Shift Processmentioning

confidence: 99%

Simulation for Integrated Systems of Typical Coal-to-liquids Processes and Waste Energy Exploitation Based on Different Gasification Processes

Yu¹,

Yang²,

Wang³

2017

Proceedings of the 2nd 2016 International Conference on Sustainable Development (ICSD 2016)

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Abstract-Integrated systems of FT liquids processes and waste energy utilization based on Shell, GSP and GE gasification are designed and simulated. The results show that under the condition of 1 000 t/hr coal feedstock, the yields of the liquids, including diesel, naphtha and LPG, are 205.2t/hr, 73.2t/hr and 40.1t/hr, respectively based on shell; 205.1t/hr, 73.2t/hr and 40.1t/hr, respectively based on GSP; 183.8t/hr, 65.6t/hr and 35.9t/hr respectively based on GE. However, the electricity generation equivalent to about 2% of coal thermal value cannot meet the power needs of the three systems. Based on LHV, the highest system thermal efficiency of 47.7% comes from the system based on Shell. The lowest system thermal efficiency, resulting from the system based on GE, has decreased 7.1% compared with that of the system based Shell. The proportion of carbon capture to the total carbon entering the systems is 58.7% (for the system based on Shell), 58.6% (for the system based on GSP) and 59.5% (for the system based on GE), respectively.

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“…Otsuka et al reported that Pt accelerated the formation rates of H 2 and CO in the partial oxidation of methane by the reverse spillover of H 2 [32]. Lei et al investigated the effect of Rh in the high temperature water-gas shift reaction, and they found that Rh greatly enhances H 2 release during reoxidation by water, presumably by recombining hydrogen atoms transferred from oxide to metal by reverse spillover [33]. Therefore, the Ru and Pd might accelerate the association of hydrogen atom and desorption of H 2 molecules from the catalyst through the reverse spillover mechanism.…”

Section: Catalyst Development For Improving the Membrane Reactor Perfmentioning

confidence: 99%

Effects of Catalysts and Membranes on the Performance of Membrane Reactors in Steam Reforming of Ethanol at Moderate Temperature

et al. 2016

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Steam reforming of ethanol in the membrane reactor using the Pd 77 Ag 23 membrane was evaluated in Ni/CeO 2 and Co/CeO 2 at atmospheric pressure. At 673 K, the H 2 yield in the Pd 77 Ag 23 membrane reactor over Co/CeO 2 was found to be higher than that over Ni/CeO 2 , although the H 2 yield over Ni/CeO 2 exceeded that over Co/CeO 2 at 773 K. This difference was owing to their reaction mechanism. At 773 K, the effect of H 2 removal could be understood as the equilibrium shift. In contrast, the H 2 removal kinetically inhibited the reverse methane steam reforming at low temperature. Thus, the low methane-forming reaction rate of Co/CeO 2 was favorable at 673 K. The addition of a trace amount of Ru increased the H 2 yield effectively in the membrane reactor, indicating that a reverse H 2 spill over mechanism of Ru would enhance the kinetical effect of H 2 separation. Finally, the effect of membrane performance on the reactor performance by using amorphous alloy membranes with different compositions was evaluated. The H 2 yield was set in the order of H 2 permeation flux regardless of the membrane composition.

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The origin of rhodium promotion of Fe3O4–Cr2O3 catalysts for the high-temperature water–gas shift reaction

Cited by 67 publications

References 15 publications

The role of copper in catalytic performance of a Fe–Cu–Al–O catalyst for water gas shift reaction

The role of copper in catalytic performance of a Fe–Cu–Al–O catalyst for water gas shift reaction

Simulation for Integrated Systems of Typical Coal-to-liquids Processes and Waste Energy Exploitation Based on Different Gasification Processes

Effects of Catalysts and Membranes on the Performance of Membrane Reactors in Steam Reforming of Ethanol at Moderate Temperature

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