Improved CO2 uptake of CaO-based adsorbents achieved by oxalic acid modification DOI
Yanyan Feng, Ziyi Huang, Wan Gao

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131238 - 131238

Published: Dec. 1, 2024

Language: Английский

Facile synthesis of inherently nitrogen-doped PAN-derived microporous carbons activated with NaNH2 for selective CO2 adsorption and separation DOI

Ghazanfar Nazir,

Adeela Rehman, Muhammad Ikram

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154704 - 154704

Published: Aug. 14, 2024

Language: Английский

Citations

8
Feasibility of green mechanochemical synthesis for dual function materials preparation DOI Creative Commons
Maila Danielis, Loukia-Pantzechroula Merkouri, Andrea Braga

et al.

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 86, P. 102895 - 102895

Published: Aug. 1, 2024

Dual function materials (DFMs) are key for the integrated capture of CO2 from waste gas streams and its valorisation to valuable chemicals, such as syngas. To be able in commercial applications, DFMs require both high capacity catalytic activity, achieved by optimising synergistic interactions among metals, support adsorbent components. obtain increased interaction, dry milling process can used a sustainable, solvent free, green synthesis method. In this work, we report performance RuNi bimetallic supported on CeO2-Al2O3 promoted with CaO Na2O, synthesised mild-energy mechanochemical process. The show generally comparable, sometimes superior, activity Reverse Water-Gas Shift (RWGS) reaction CO production at 650 °C compared their counterpart prepared conventional impregnation method, underlining potential method highly functional DFMs. Remarkably, stability also maintained when O2 is present step, indicating real exhaust-gases applications. Also, direct air reported, further benefits approach creating versatile

Language: Английский

Citations

6
Integrated CO2 capture and conversion performance of Ni-CaO dual functional materials pellets in O2-containing flue gas stream DOI
Zhouzhou Zhang, Yafei Guo, Jie Chu

et al.

Chemical Engineering Science, Journal Year: 2025, Volume and Issue: unknown, P. 121241 - 121241

Published: Jan. 1, 2025

Language: Английский

Citations

0
Investigation of CO2 Adsorption on Modified Bimetallic Activated Carbon Derived from Apricot Stones DOI Creative Commons
Snunkhaem Echaroj,

Channarong Asavatesanupap,

Thanasak Keanthong

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

The adsorption of CO2 was investigated on monometallic and bimetallic activated carbon (PAC) prepared from apricot waste. Metals such as Zn, Ni, Ce, Cu were impregnated onto PAC at varying ratios. Scanning electron microscopy images revealed grain-like particles flower-like layers due to the accumulation metals. N2 sorption analysis (BET) showed an increase in surface area 756.95 m2/g after modification with Zn. For adsorbents, addition Ce resulted areas 753.95 731.91 m2/g, respectively. Pore size distribution indicated presence micropore channels 1-2 nm range for both adsorbents. tests demonstrated that metal impregnation enhanced capacity. 0.5Ce/0.5Zn/PAC sample exhibited highest capacity, reaching 4.25 mmol/g 0 °C 2.77 25 °C. heat 0.5Ce0.5Zn/PAC ranged 31.4 41.3 kJ/mol, suggesting is predominantly physical. A two-cycle regeneration test a reduction uptake ranging 5.1 9.7%, indicating high adsorbent stability. also selectivity over N2. Kinetic studies intraparticle diffusion model best fits experimental data. capture system developed this study shows potential applications outlets production processes gas purification facilities.

Language: Английский

Citations

0
Insights into the catalytic application of coordinated metal complexes in CO2 conversion via cycloaddition DOI
Ismayil M. Garazade, Rakesh Kumar Gupta,

Kamal Jeet Singh

et al.

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 142200 - 142200

Published: March 1, 2025

Language: Английский

Citations

0
Al/Mn Co‐Doped Calcium‐Based Materials for High Performance Direct Solar‐Driven Calcium Looping Thermochemical Energy Storage DOI
Yu Zhou, Yi Pan, Binlin Dou

et al.

Asia-Pacific Journal of Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

ABSTRACT CaO/CaCO 3 thermochemical energy storage, also known as calcium looping (CaL), has promising applications in high‐temperature concentrating solar power (CSP) plants due to their wide range of material source, low price, high storage density, and suitable reaction temperature. However, calcium‐based materials are gradually deactivated sintering agglomeration, which reduce the cyclic stability materials. In this paper, composites containing Al Mn elements were prepared by a template method. The addition resulted significant increase thermal capacity light absorption property. optimum ratio Ca:Al:Mn is 100:2.5:2. initial effective conversion rate density composite 0.91 2893 kJ/kg, respectively, with only 6% decrease after 10 cycles. Both properties contribute system generation efficiency CSP‐CaL integration system. By increasing CaCO from 0.5 0.87, improved 25.79% 34.03%. At same time, total exergy loss decreased 8.98%. Under 0.5, input 100 110 MW improves 43.27%. This study sheds on improving through optimization.

Language: Английский

Citations

0
Dual functional materials for integrated CO2 capture and utilization (ICCU): Design, fabrication, performances, and challenges DOI

Yanmei Shen,

Shuzhuang Sun, Hongman Sun

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162440 - 162440

Published: April 1, 2025

Language: Английский

Citations

0
One-pot synthesis of cost-effective dual functional material from solid waste for integrated CO2 capture and utilization DOI
Xinyang Xu, Bocheng Yu,

Muhammad Saddam Hussain

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133309 - 133309

Published: April 1, 2025

Language: Английский

Citations

0
A Study on the Mechanisms of Coal Fly Ash to Improve the CO2 Capture Efficiency of Calcium-Based Adsorbents DOI Open Access
Ziyu Zhao, Kefan Zhang, Jianfeng Luo

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 8139 - 8139

Published: Sept. 18, 2024

Utilizing calcium-based adsorbents for CO2 adsorption through cyclic calcination/carbonization is one of the most cost-effective methods carbon emission reduction. In order to improve cycle stability and capture efficiency CO2, this study used industrial solid waste coal fly ash hydration treatment adsorbent explore variations in performance under different doping ratios conditions. By means various characterization techniques, microscopic mechanism improving modified was analyzed from perspectives chemical composition, physical structure, surface functional groups adsorbents. The results demonstrated that modification could significantly enhance carbonation multiple processes. material doped with 5% had highest total capacity, which increased by 13.7% compared before modification. Additionally, 10% exhibited strongest 14.0% higher than modification, attenuation rate decreased 32.2%. showed reaction between calcium oxide formed CaSiO3 Ca12Al14O33 during process, primary reason improvement materials. This provided a new perspective on resource utilization efficient capture.

Language: Английский

Citations

1
Metal oxide (Al, Zr and Ce)-modified Fe-CaO dual functional materials for O2-containing simulate flue gas DOI
Zhuxian Gao,

Caihu Li,

Yun Zhu

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 130149 - 130149

Published: Oct. 1, 2024

Language: Английский

Citations

1