Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology

Hussain, I.; Jalil, Aishah Abdul; Izan, S.M.; Kidam, Kamarizan; Ainirazali, Nurul; Ripin, Adnan

doi:10.1016/j.ces.2020.116015

Cited by 33 publications

(14 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, from an industrial perspective, high-pressure equipment is more dangerous to use, and the low-temperature reaction rate is lower. Therefore, the optimal conditions for CO 2 methanation are a temperature of 30~500 °C and a pressure of 0.1~0.3 MPa [ 57 ].…”

Section: Optimization Of Reaction Conditionsmentioning

confidence: 99%

“…According to the thermodynamic experiments conducted by Gao et al [ 44 ] on the Ni-based catalyst, when the H 2 /CO 2 ratio is as low as 2, up to 50% carbon deposition can be observed at 500 °C, while when the H 2 /CO 2 ratio is equal to or greater than 4, the carbon deposition decreases to 0. Hussain et al [ 57 ] conducted evaluation experiments and thermodynamic studies on the CO 2 methanation reaction of a metal-free fibrous silica-β zeolite (FS@SiO 2 -BEA) catalyst. It was found that when the H 2 /CO 2 ratio increased from 1 to 2, the proportion of CH 4 in the product increased and the proportion of CO decreased.…”

Section: Optimization Of Reaction Conditionsmentioning

confidence: 99%

See 1 more Smart Citation

Research Progress of Non-Noble Metal Catalysts for Carbon Dioxide Methanation

Cui,

He,

Yang

et al. 2024

Molecules

View full text Add to dashboard Cite

The extensive utilization of fossil fuels has led to a rapid increase in atmospheric CO2 concentration, resulting in various environmental issues. To reduce reliance on fossil fuels and mitigate CO2 emissions, it is important to explore alternative methods of utilizing CO2 and H2 as raw materials to obtain high-value-added chemicals or fuels. One such method is CO2 methanation, which converts CO2 and H2 into methane (CH4), a valuable fuel and raw material for other chemicals. However, CO2 methanation faces challenges in terms of kinetics and thermodynamics. The reaction rate, CO2 conversion, and CH4 yield need to be improved to make the process more efficient. To overcome these challenges, the development of suitable catalysts is essential. Non-noble metal catalysts have gained significant attention due to their high catalytic activity and relatively low cost. In this paper, the thermodynamics and kinetics of the CO2 methanation reaction are discussed. The focus is primarily on reviewing Ni-based, Co-based, and other commonly used catalysts such as Fe-based. The effects of catalyst supports, preparation methods, and promoters on the catalytic performance of the methanation reaction are highlighted. Additionally, the paper summarizes the impact of reaction conditions such as temperature, pressure, space velocity, and H2/CO2 ratio on the catalyst performance. The mechanism of CO2 methanation is also summarized to provide a comprehensive understanding of the process. The objective of this paper is to deepen the understanding of non-noble metal catalysts in CO2 methanation reactions and provide insights for improving catalyst performance. By addressing the limitations of CO2 methanation and exploring the factors influencing catalyst effectiveness, researchers can develop more efficient and cost-effective catalysts for this reaction.

show abstract

Section: Optimization Of Reaction Conditionsmentioning

confidence: 99%

Section: Optimization Of Reaction Conditionsmentioning

confidence: 99%

Research Progress of Non-Noble Metal Catalysts for Carbon Dioxide Methanation

Cui,

He,

Yang

et al. 2024

Molecules

View full text Add to dashboard Cite

show abstract

“…Even though both the two catalysts proceeded via a CO 2 dissociation pathway, three intermediate species of linear carbonyl, unidentate, and bidentate carbonates could be found in DMSNs/SBA‐15‐Ni, while only bidentate carbonates could be found in SBA‐15‐Ni. [ 157 ] Jalil's squad implanted another two types of zeolites, that is, mordenite (MOR) [ 158 ] and BEA, [ 159 ] into DMSNs skeletons. The as‐obtained metal‐free DMSNs/MOR and DMSNs/BEA could be utilized for CO 2 methanation because of the catalytic nature of zeolites.…”

Section: The Catalytic Conversion Of Co2 By Dmsns‐based Materialsmentioning

confidence: 99%

“…[ 158 ] Experimental results were highly consistent with thermodynamic observations at high temperature for DMSNs/BEA. [ 159 ] This group also embedded Al 2 O 3 seeds into DMSNs and then loaded Rh NPs into the channels (Figure 11d). [ 160 ] The best CH 4 formation rate (16.1 × 10 4 mol g cat −1 s −1 ) of the as‐designed DMSNs/Al 2 O 3 ‐Rh could be reached as Rh content equaled 1%, while the formation rate of DMSNs/Al 2 O 3 only came to 4.26 × 10 4 mol g cat −1 s −1 .…”

Section: The Catalytic Conversion Of Co2 By Dmsns‐based Materialsmentioning

confidence: 99%

“…Substituting Si in DMSNs with other elements or embedding functional units (elements, organo‐functional groups, crystal seed, etc.) into DMSNs skeletons could generate unprecedented materials with specific capabilities, such as the as‐introduced carbon‐replaced DMCNs, [ 72 ] DMONs decorated with organic segments, TiO 2 ‐modified DMSTNs, [ 16 ] Al‐doped DMSANs, [ 104 ] V‐doped DMSVNs, [ 37 ] DMSNs/Sn, [ 102 ] DMSNs/Ni, [ 125 ] DMSNs/Al 2 O 3 , [ 160 ] DMSNs/SBA‐15, [ 138 ] DMSNs/ZSM, [ 67 ] DMSNs/HZSM, [ 65 ] DMSNs/MOR, [ 158 ] DMSNs/BEA, [ 159 ] DMSNs/MFI, [ 145 ] and so forth. Once the synthetic method has been chosen, it is necessary to consider the influence of other component elements or units on the morphology and performance of DMSNs‐based materials.…”

Section: Summary and Perspectivesmentioning

confidence: 99%

See 1 more Smart Citation

The Capture and Catalytic Conversion of CO₂ by Dendritic Mesoporous Silica‐Based Nanoparticles

Wang

Huang

et al. 2023

Energy & Environ Materials

View full text Add to dashboard Cite

Dendritic mesoporous silica nanoparticles own three‐dimensional center‐radial channels and hierarchical pores, which endows themselves with super‐high specific surface area, extremely large pore volumes, especially accessible internal spaces, and so forth. Dissimilar guest species (such as organic groups or metal nanoparticles) could be readily decorated onto the interfaces of the channels and pores, realizing the functionalization of dendritic mesoporous silica nanoparticles for targeted applications. As adsorbents and catalysts, dendritic mesoporous silica nanoparticles‐based materials have experienced nonignorable development in CO2 capture and catalytic conversion. This comprehensive review provides a critical survey on this pregnant subject, summarizing the designed construction of novel dendritic mesoporous silica nanoparticles‐based materials, the involved chemical reactions (such as CO2 methanation, dry reforming of CH4), the value‐added chemicals from CO2 (such as cyclic carbonates, 2‐oxazolidinones, quinazoline‐2,4(1H,3H)‐diones), and so on. The adsorptive and catalytic performances have been compared with traditional silica mesoporous materials (such as SBA‐15 or MCM‐41), and the corresponding reaction mechanisms have been thoroughly revealed. It is sincerely expected that the in‐depth discussion could give materials scientists certain inspiration to design brand‐new dendritic mesoporous silica nanoparticles‐based materials with superior capabilities towards CO2 capture, utilization, and storage.

show abstract

Enhanced CO₂ Methanation over Nickel‐Based Unsupported Catalyst Synthesized by Chemical Precipitation Method

Kumar Choudhary,

Yadav,

Kumar Gupta

2024

ChemistrySelect

View full text Add to dashboard Cite

This study investigated the catalytic CO2 methanation using nickel oxide (NiO) nanoparticles and nickel oxalate (NiC2O4) as catalysts. The NiC2O4 precursor was synthesized through a chemical precipitation reaction between nickel (II) nitrate hexahydrate (Ni(NO3)2.6H2O) and oxalic acid (H2C2O4.2H2O). Nickel oxide (NiO) nanoparticles were synthesized through thermal decomposition of NiC2O4 precursor at 450 °C in air. The samples were characterized by XRD, FTIR, BET, SEM, and EDX. The XRD and FTIR analyses revealed that the NiO nanoparticles were well‐crystallized having size 17.30 nm. The BET analysis of the NiO sample revealed mesoporous NiO nanoparticles with a specific surface area (SBET) of 29.08 m2/g and a narrow distribution of pore sizes. The catalytic performance of NiO and NiC2O4 catalysts studied for the CO2 methanation in tubular packed bed reactor at 150–550 °C and 1 atm. The reduced NiO nanoparticles exhibited more catalytic activity than the decomposed NiC2O4 catalyst. At 380 °C, 1 atm, and gas hourly space velocity (GHSV) of 9000 mL g−1 h−1, the reduced NiO nanoparticle catalyst showed high catalytic activity, with a maximum CO2 conversion of 85.54 %, 99 % CH4 selectivity, and 84.69 % CH4 yield. Furthermore, the NiO nanoparticle catalyst demonstrated excellent stability after 12 h of streaming at 380 °C.

show abstract

Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology

Cited by 33 publications

References 61 publications

Research Progress of Non-Noble Metal Catalysts for Carbon Dioxide Methanation

Research Progress of Non-Noble Metal Catalysts for Carbon Dioxide Methanation

The Capture and Catalytic Conversion of CO₂ by Dendritic Mesoporous Silica‐Based Nanoparticles

Enhanced CO₂ Methanation over Nickel‐Based Unsupported Catalyst Synthesized by Chemical Precipitation Method

Contact Info

Product

Resources

About

Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology

Cited by 33 publications

References 61 publications

Research Progress of Non-Noble Metal Catalysts for Carbon Dioxide Methanation

Research Progress of Non-Noble Metal Catalysts for Carbon Dioxide Methanation

The Capture and Catalytic Conversion of CO2 by Dendritic Mesoporous Silica‐Based Nanoparticles

Enhanced CO2 Methanation over Nickel‐Based Unsupported Catalyst Synthesized by Chemical Precipitation Method

Contact Info

Product

Resources

About

The Capture and Catalytic Conversion of CO₂ by Dendritic Mesoporous Silica‐Based Nanoparticles

Enhanced CO₂ Methanation over Nickel‐Based Unsupported Catalyst Synthesized by Chemical Precipitation Method