CO2 methanation of Ni catalysts supported on tetragonal ZrO2 doped with Ca2+ and Ni2+ ions

Takano, Hiroyuki; Shinomiya, Hiroyuki; Izumiya, Koichi; Kumagai, Naokazu; Habazaki, H.; Hashimoto, Kôji

doi:10.1016/j.ijhydene.2015.04.128

Cited by 72 publications

(30 citation statements)

References 22 publications

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“…The literature data shows that they can also exhibit high activity in steam reforming [7], CH 4 -CO 2 reforming [8] and methanation [9]. Our earlier investigations revealed [10] that the Ni/ZrO 2 catalyst is particularly active and selective in the production of hydrogen rich gas from cellulose.…”

Section: Introductionmentioning

confidence: 84%

Hydrogen production from biomass woodchips using Ni/CaO–ZrO2 catalysts

Ryczkowski

Ruppert

Przybysz

et al. 2017

Reac Kinet Mech Cat

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This work aimed at the determination of the influence of various types of lignocellulosic biomass on the performance of Ni/ZrO 2 catalyst modified by CaO in the production of hydrogen rich gas from lignocellulosic feedstock. The catalysts were prepared by co-impregnation and sequential impregnation methods. The catalytic activity of the synthesized materials was examined in the high temperature conversion of cellulose (model compound) and real biomass samples-woodchips from pine, beech, birch and poplar. The surface properties of Ni/CaO-ZrO 2 catalysts were characterized by X-ray diffraction (XRD), time-of-flight secondary ion mass spectrometry (ToF-SIMS), thermogravimetric analysis (TG-DTA-MS) and BET methods. The obtained results revealed that an incorporation of calcium into the structure of the catalyst led to a decrease in the coke formation rate on its surface. Moreover, the influence of the preparation method on the material composition and related properties was demonstrated.

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Section: Introductionmentioning

confidence: 84%

Hydrogen production from biomass woodchips using Ni/CaO–ZrO2 catalysts

Ryczkowski

Ruppert

Przybysz

et al. 2017

Reac Kinet Mech Cat

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“…The comparison with 50 wt % Ni/(Zr + Sm) catalyst highlighted the higher conversion under the same flow rate conditions. The Ca content dependence of the catalytic activity has been related, according to [184], to the number of oxygen vacancies in t-ZrO2 since calcium is a more effective additive than samarium. Hydrogen is atomically absorbed on Ni, and is able to reduce carbonates to formate, formaldehyde, methoxy species, and methane.…”

Section: Silica-supported Nickelmentioning

confidence: 99%

“…The catalytic performance of the Ni/C15 catalyst in CO2 methanation is superior to that of similar catalysts prepared with lower amounts of quaternary Takano et al recently investigated a 50 wt % Ni/(Zr + Ca) catalyst (molar ratios 0.125-0.333) affording 100% CH 4 selectivity with a CO 2 conversion of 90% at T = 400 • C. The comparison with 50 wt % Ni/(Zr + Sm) catalyst highlighted the higher conversion under the same flow rate conditions. The Ca content dependence of the catalytic activity has been related, according to [184], to the number of oxygen vacancies in t-ZrO 2 since calcium is a more effective additive than samarium. Hydrogen is atomically absorbed on Ni, and is able to reduce carbonates to formate, formaldehyde, methoxy species, and methane.…”

Section: Silica-supported Nickelmentioning

confidence: 99%

Supported Catalysts for CO2 Methanation: A Review

et al. 2017

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CO 2 methanation is a well-known reaction that is of interest as a capture and storage (CCS) process and as a renewable energy storage system based on a power-to-gas conversion process by substitute or synthetic natural gas (SNG) production. Integrating water electrolysis and CO 2 methanation is a highly effective way to store energy produced by renewables sources. The conversion of electricity into methane takes place via two steps: hydrogen is produced by electrolysis and converted to methane by CO 2 methanation. The effectiveness and efficiency of power-to-gas plants strongly depend on the CO 2 methanation process. For this reason, research on CO 2 methanation has intensified over the last 10 years. The rise of active, selective, and stable catalysts is the core of the CO 2 methanation process. Novel, heterogeneous catalysts have been tested and tuned such that the CO 2 methanation process increases their productivity. The present work aims to give a critical overview of CO 2 methanation catalyst production and research carried out in the last 50 years. The fundamentals of reaction mechanism, catalyst deactivation, and catalyst promoters, as well as a discussion of current and future developments in CO 2 methanation, are also included.

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“…Huailiang et al proved that ZrO 2 could promote the dispersion of Ni on catalyst support and provide larger activity area [21]. Takano et al pointed that ZrO 2 could provide oxygen vacancy for CO 2 adsorption so as to enhance the activity of catalyst [22].…”

Section: Introductionmentioning

confidence: 99%

Application of Ni–Al-hydrotalcite-derived catalyst modified with Fe or Mg in CO2 methanation

2016

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In this work, Ni-Al-hydrotalcite-derived catalyst modified with Fe or Mg for CO 2 methanation was investigated in an attempt to improve the reaction activity at low temperature. Through the characterization of XRD, H 2 -TPR, and N 2 -BET, 0.05Fe-Ni-Al 2 O 3 -HT catalyst can be found with a better reducing property, higher surface area, better Ni dispersion, and smaller pore size. The CO 2 conversion using this catalyst was tested in a fixed-bed reactor in laboratory. The result showed better reaction activity at low temperature. At 219°C, the CO 2 conversion could reach 80.8 %. Meanwhile, the highest CO 2 conversion of 96.0 % was achieved at 350°C.Keywords CO 2 methanation Á Ni-Al hydrotalcite Á Activity Á Reducibility Á Larger/smaller pore size List of symbols k X-ray wavelength h Bragg's angle of diffraction X CO 2 CO 2 conversion S CH 4 Selectivity of CH 4

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CO2 methanation of Ni catalysts supported on tetragonal ZrO2 doped with Ca2+ and Ni2+ ions

Cited by 72 publications

References 22 publications

Hydrogen production from biomass woodchips using Ni/CaO–ZrO2 catalysts

Hydrogen production from biomass woodchips using Ni/CaO–ZrO2 catalysts

Supported Catalysts for CO2 Methanation: A Review

Application of Ni–Al-hydrotalcite-derived catalyst modified with Fe or Mg in CO2 methanation

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