Highly active Ni/Y-doped ZrO2 catalysts for CO2 methanation

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

doi:10.1016/j.apsusc.2015.11.187

Cited by 125 publications

(77 citation statements)

References 41 publications

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“…The influence of calcination temperature was also investigated on CO 2 conversion and CH 4 selectivity. The catalyst with 20 wt % Ni shows higher activity and stability between 200 • C and 350 • C. According to He et al [89], the combination of highly dispersed Ni particles with a strong basic support is thought to be responsible for the high performance of the Ni-Al hydrotalcite-derived catalyst. Such basic sites are originated from the formation of the Ni-O-Al structure; 100% CH 4 selectivity and 82% CO 2 conversion are reached at 350 • C.…”

Section: Alumina-supported Nickelmentioning

confidence: 99%

“…Supported Ni catalysts are the most widely investigated materials for CO 2 methanation due to their high efficiency in CH 4 production and low cost [75][76][77][78][79][80][81][82][83][84][85][86][87][88][89]. A lot of supports have been investigated for Ni catalysts since, as is well known, the catalytic performance strongly depends upon the nature and properties of the support.…”

Section: Nickel-based Catalystsmentioning

confidence: 99%

“…To ameliorate the performance of Ni/Al 2 O 3 catalysts via substantial modifications of some specific (structural, electronic) properties, the addition of several promoters has been also attempted. Among these, CeO 2 has often been employed on account of some positive effects, such as: (i) improvement of the thermal stability of Al 2 O 3 ; (ii) promotion of the dispersion of the metal onto the support; (iii) change of the properties of the metal due to strong metal-support interaction (SMSI) [41,89,[99][100][101].…”

Section: Alumina-supported Nickelmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: Alumina-supported Nickelmentioning

confidence: 99%

Section: Nickel-based Catalystsmentioning

confidence: 99%

Section: Alumina-supported Nickelmentioning

confidence: 99%

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Supported Catalysts for CO2 Methanation: A Review

et al. 2017

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“…Hydrogenation of CO 2 toward methane (CO 2 +4H 2 →CH 4 +2H 2 O), the well‐known Sabatier reaction or methanation reaction, has been extensively studied using many kinds of active supported Ru, Pd, Fe, Co, and Ni catalysts . Amongst them, Ni‐based materials are the most commonly investigated for industrial purposes because of their high catalytic performance and low cost …”

Section: Introductionmentioning

confidence: 99%

“…In spite of the great research efforts in the field of CO 2 hydrogenation for methane formation, the understanding of the active sites and surface chemical state of real catalyst on practical reaction conditions as well as the potential key intermediates for CO 2 methanation is still limited. Many in situ techniques can be employed to probe these significant and air‐sensitive species.…”

Section: Introductionmentioning

confidence: 99%

Cooperative Catalysis of Nickel and Nickel Oxide for Efficient Reduction of CO₂ to CH₄

Huang

Yin

et al. 2019

ChemCatChem

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The use of CO2 to produce value‐added energy chemicals is a promising means for renewable CO2 transformation in low‐carbon energy system, and CO2 methanation has attracted ever‐increasing interest. Herein, we report that the Ni/MCM‐41 catalyst with prominent cooperative effect of Ni and NiO is efficient for CH4 generation with CO2 conversion of 73.2 % and CH4 selectivity of 91.6 % at 400 °C and high gas hourly space velocity (GHSV) of 90000 mL gcat−1 h−1. Combined methodologies of in situ X‐ray diffraction, diffuse reflectance infrared Fourier transform spectroscopy, and ambient‐pressure X‐ray photoelectron spectroscopy reflect the structural evolvements of Ni/MCM‐41 catalyst, the presence of carbonyl intermediates, the co‐existence of metallic and oxidized Ni species with sufficient molar ratio of Ni0/Ni2+ under working conditions. H2 and CO2 molecules are preferentially adsorbed and chemically activated over Ni0 and Ni2+ species, respectively. The possible four‐step reaction mechanism involved carbonyl pathway and the cleavage of C=O bond from CO2 as the rate‐determining step over the engineered Ni/MCM‐41 catalyst was demonstrated.

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Modeling and estimating kinetic parameters for CO₂ methanation from fixed bed reactor experiments

Tsuboi

Yasuda

Choi

et al. 2022

J Adv Manuf & Process

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CO 2 methanation, which converts CO 2 and hydrogen into methane as fuel, is one of the promising candidates for the development of CO 2 utilization technologies. Recently, a highly active catalyst made of Ni/ZrO 2 for methanation has been developed, and is currently investigated as a potential use in a highperformance reactor. However, design of reactor must be carried out carefully, since this reaction is highly exothermic, which may cause reactor runaway and deterioration of catalysts. For this problem, a mathematical model that can predict the behavior inside the reactor is necessary. In this work, we consider the methanation reaction of CO 2 in a reactor model and estimate the kinetic parameters in the reaction rate model from experimental data. In the parameter estimation using literature values and Tikhonov regularization, eight kinetic parameters in the rate equations were identified from 64 data points with a wide range of conditions. We confirm that molar fractions at the reactor exit predicted by this reactor model are in good agreement with the experimental results. Furthermore, the developed model was validated to predict the compositions and temperature that were not used in the estimation. We expect the developed model will be a powerful tool for the reactor design.

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Highly active Ni/Y-doped ZrO2 catalysts for CO2 methanation

Cited by 125 publications

References 41 publications

Supported Catalysts for CO2 Methanation: A Review

Supported Catalysts for CO2 Methanation: A Review

Cooperative Catalysis of Nickel and Nickel Oxide for Efficient Reduction of CO₂ to CH₄

Modeling and estimating kinetic parameters for CO₂ methanation from fixed bed reactor experiments

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Highly active Ni/Y-doped ZrO2 catalysts for CO2 methanation

Cited by 125 publications

References 41 publications

Supported Catalysts for CO2 Methanation: A Review

Supported Catalysts for CO2 Methanation: A Review

Cooperative Catalysis of Nickel and Nickel Oxide for Efficient Reduction of CO2 to CH4

Modeling and estimating kinetic parameters for CO2 methanation from fixed bed reactor experiments

Contact Info

Product

Resources

About

Cooperative Catalysis of Nickel and Nickel Oxide for Efficient Reduction of CO₂ to CH₄

Modeling and estimating kinetic parameters for CO₂ methanation from fixed bed reactor experiments