Structural modifications of calcium based catalysts by non-thermal plasma in the CO2 reforming of CH4 and the influence of water

Bouchoul, Nassim; Fourré, Elodie; Tatibouët, Jean‐Michel; Duarte, Alysson; Tanchoux, Nathalie; Batiot‐Dupeyrat, Catherine

doi:10.1016/j.jcou.2019.09.006

Cited by 9 publications

(3 citation statements)

References 32 publications

(34 reference statements)

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“…Some studies have shown that the presence of water with calcium oxide can help improve the conversion of carbon dioxide in the non-thermal plasma process from 11.3% to 14.7% at room temperature. The selectivity of methanol, ethanol, acetaldehyde, and acetone increased from 1.0%, 0.3%, 0.3%, 0.4% to 1.4%, 0.5%, 1.1%, and 0.7%, respectively [130].…”

Section: Carbon Dioxide Conversion By Plasma Catalysismentioning

confidence: 92%

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

et al. 2022

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Various carbon dioxide (CO2) capture materials and processes have been developed in recent years. The absorption-based capturing process is the most significant among other processes, which is widely recognized because of its effectiveness. CO2 can be used as a feedstock for the production of valuable chemicals, which will assist in alleviating the issues caused by excessive CO2 levels in the atmosphere. However, the interaction of carbon dioxide with other substances is laborious because carbon dioxide is dynamically relatively stable. Therefore, there is a need to develop types of catalysts that can break the bond in CO2 and thus be used as feedstock to produce materials of economic value. Metal oxide-based processes that convert carbon dioxide into other compounds have recently attracted attention. Metal oxides play a pivotal role in CO2 hydrogenation, as they provide additional advantages, such as selectivity and energy efficiency. This review provides an overview of the types of metal oxides and their use for carbon dioxide adsorption and conversion applications, allowing researchers to take advantage of this information in order to develop new catalysts or methods for preparing catalysts to obtain materials of economic value.

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Section: Carbon Dioxide Conversion By Plasma Catalysismentioning

confidence: 92%

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

et al. 2022

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“…Bouchoul et al [130] tested three different calcium-based materials for CO 2 /CH 4 reforming in a DBD plasma reactor with and without the addition of water; the chosen input power (8 W) excluded the thermal activation of reactants. It was observed that reactants conversion was not significantly influenced by the nature of the Ca-based material, and the only detected difference was a lower formation of formaldehyde in presence of CaO.…”

Section: Co2 Reforming Of Methanementioning

confidence: 99%

A Review about the Recent Advances in Selected NonThermal Plasma Assisted Solid–Gas Phase Chemical Processes

et al. 2020

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Plasma science has attracted the interest of researchers in various disciplines since the 1990s. This continuously evolving field has spawned investigations into several applications, including industrial sterilization, pollution control, polymer science, food safety and biomedicine. nonthermal plasma (NTP) can promote the occurrence of chemical reactions in a lower operating temperature range, condition in which, in a conventional process, a catalyst is generally not active. The aim, when using NTP, is to selectively transfer electrical energy to the electrons, generating free radicals through collisions and promoting the desired chemical changes without spending energy in heating the system. Therefore, NTP can be used in various fields, such as NOx removal from exhaust gases, soot removal from diesel engine exhaust, volatile organic compound (VOC) decomposition, industrial applications, such as ammonia production or methanation reaction (Sabatier reaction). The combination of NTP technology with catalysts is a promising option to improve selectivity and efficiency in some chemical processes. In this review, recent advances in selected nonthermal plasma assisted solid–gas processes are introduced, and the attention was mainly focused on the use of the dielectric barrier discharge (DBD) reactors.

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“…The reforming of CH 4 with CO 2 , also designated as the dry reforming of methane (DRM), was regarded as an attractive pathway for the conversion of GHGs into syngas (i.e., H 2 + CO). Syngas is an important intermediate for the synthesis of various chemicals and fuels, such as ammonia, methanol, and dimethyl ether (DME) (Bouchoul et al, 2020;Cao et al, 2018;Vakili et al, 2020). Despite the optimization of reforming conditions, such as temperature, the composition of the reactant gas, space velocity, and pressure, there had been great efforts to reduce the energy consumption associated with DRM due to the high endothermicity of the reaction.…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon (AC) Supported Nickel-Nanoparticles Prepared By Solid-Phase Method For Dry Reforming of Methane--Effect of Different Activated Carbons (ACs)

Chen

Bai

et al. 2021

Preprint

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In order to inhibit the apparent metal agglomeration and carbon deposition of the catalysts during the dry reforming of methane (DRM), the nickel nanoparticles supported over different types of activated carbon (AC) are synthesized by the solid-phase method. The main purpose of the work is to reveal the correlation of the support properties on the catalyst activity, and explore the effect of the support properties on the enhancem;ent of catalyst performance in the reforming process. The results show that the catalyst using AC1 as the support has the more uniform metal dispersion and form the least nickel nanoparticles of 4.11 nm, due to higher carbon content and the more developed surface area of AC1. It is also found that the catalyst prepared using AC1 shows high catalytic activity and long-term stability. Moreover, the catalyst of Ni/AC1 presents a self-enhancement of catalytic activity in the reforming process and promotes the conversion rates of CH4 and CO2 to 94.1% and 96.5%, respectively over 12 h. No obvious metal agglomeration is existed on the catalyst of Ni/AC1 after the reforming testing of 12 h. Meanwhile, the carbon deposit has little effect on catalytic performance, and metal agglomeration is the main affecting catalytic performance. In addition, the syngas generated using Ni/AC1 has a favorable H2/CO ratio of 1.

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Structural modifications of calcium based catalysts by non-thermal plasma in the CO2 reforming of CH4 and the influence of water

Cited by 9 publications

References 32 publications

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

A Review about the Recent Advances in Selected NonThermal Plasma Assisted Solid–Gas Phase Chemical Processes

Activated Carbon (AC) Supported Nickel-Nanoparticles Prepared By Solid-Phase Method For Dry Reforming of Methane--Effect of Different Activated Carbons (ACs)

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