Recent advances in CO2 solid adsorbents and application prospect in biofuel production

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 214, P. 115560 - 115560

Published: March 4, 2025

Language: Английский

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An electrochemical sensor utilizing zeolite synergistically combined with copper(I) oxide and bismuth(III) oxide for the sensitive and selective determination of paraquat

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113414 - 113414

Published: March 1, 2025

Language: Английский

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Tailoring Zeolites for Enhanced Post-Combustion CO2 Capture: A Critical Review

Current Research in Green and Sustainable Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 100451 - 100451

Published: March 1, 2025

Language: Английский

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CO2 capture enhancement of different zeolites through the utilization of valuable cathode metals from spent lithium-ion batteries

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121773 - 121773

Published: May 1, 2025

Language: Английский

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Why does CaX zeolite have such a high CO2 capture capacity and how is it affected by water?

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 349, P. 127662 - 127662

Published: April 25, 2024

CO2 capture is important in solving one of the major current environmental problems, namely global warming. Among different approaches, adsorption considered most promising and CaX zeolite materials with highest capacity. However, knowledge on mechanism its interaction still not complete which hinders further optimization. In this work we report results a combined study by in-situ FTIR spectroscopy, measurements DFT calculations. It was found that at ambient temperature initially forms linear Ca2+−OCO species which, increasing equilibrium pressure, are first converted to Ca2+(CO2)2 then Ca2+(CO2)3 species. This reason for very high capacity material. Because practical importance, effect H2O processes also studied. Water suppress but softened formation mixed ligand Ca2+(CO2)x(H2O)y complexes (x + y = 2 or 3). agreement spectroscopic it material increases rise activation up 673 K due dehydration. Its value, 22.2 wt% 273 490 mbar, among values reported literature similar conditions.

Language: Английский

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Comparison of Binder and Binderless Zeolite Lix Pellets in Adsorption Equilibria and Kinetics of O2, N2, and Co2

Published: Jan. 1, 2024

Air separation and carbon dioxide capture are essential processes used in various industries. In particular, the supply of small-scale medical oxygen generators has been emphasized during worldwide spread respiratory-related diseases, such as COVID-19 pandemic. This study investigated adsorption equilibria kinetics O2, N2, CO2 dynamic performance four commercial zeolite LiX pellets because pelletized zeolites can be different by their heterogeneity adding binders pelletizing methods. Three binder were selected compared with one binderless pellet a reference. The isotherms, measured using volumetric system at 293–323 K up to 100 kPa, correlated dual-site Langmuir Sips models. For all adsorbents, order amount isosteric heat was ≫ N2 > O2. Differences capacity clearly observed, indicating that had highest capacity. According analysis non-isothermal diffusion model, rate faster than for adsorbents. difference apparent diffusional constants observed low-pressure range, showing among owing effects adsorption, dissipation, thermal resistance. pellet, which relatively slow but N2/O2 selectivity, exhibited best breakthrough experiments.

Language: Английский

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Examination of the use of binderless zeolite blend as backfill materials to enhance CO2 adsorption in coal mine working face

Case Studies in Construction Materials, Journal Year: 2024, Volume and Issue: 21, P. e03699 - e03699

Published: Aug. 28, 2024

Language: Английский

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