Introducing mesoporosity in zeolite 4A bodies for Rapid CO2 capture

Panda, Debashis; Kumar, E. Anil; Singh, Sanjay Kumar

doi:10.1016/j.jcou.2020.101223

Cited by 39 publications

(10 citation statements)

References 53 publications

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“…The experimental data of the LTA-PIN zeolite were better predicted by the Freundlich model. The best fit to the Freundlich model indicated that the adsorption of CO in the pores of the zeolite LTA-PIN occurred mainly through physical interactions with the electric field generated by the charges [35,36].…”

Section: Resultsmentioning

confidence: 99%

Modeling, equilibrium and kinetics of CO2 adsorption in LTA zeolite obtained from clay

et al. 2021

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This paper discussed the synthesis of LTA zeolite from Pinheiro clay (PIN) aiming for adsorption of CO 2 . To obtain the LTA-PIN zeolite, the PIN was submitted to acid treatment, followed by calcination and hydrothermal treatment. These treatments promoted the reorganization of the crystalline structure of the PIN, leading to the LTA-PIN zeolite with 95.79% purity confirmed by XRD, SEM, XRF, and FTIR results. The performance of the LTA-PIN zeolite was similar to the one of the standard LTA zeolite. The CO 2 adsorption by the zeolites could be properly described by the pseudo-second-order kinetic and Freundlich isotherm models, suggesting that physisorption was the main mechanism responsible for the deposition of CO 2 at the surface of the zeolites. According to regeneration results, LTA-PIN zeolite can be reused five times without significant loss of CO 2 adsorption capacity, contrary to the 12% reduction in CO 2 adsorption capacity presented by the LTA-standard zeolite.

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Section: Resultsmentioning

confidence: 99%

Modeling, equilibrium and kinetics of CO2 adsorption in LTA zeolite obtained from clay

et al. 2021

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“…161 The isosteric heat of adsorption provides necessary information about the nature of the adsorption process (exothermic or endothermic) it allows quantifying the energy needed to desorb the adsorbate from the adsorbent. 162 Among the two measurement methods, the isosteric heat measurement by the Clausius–Clapeyron equation is widely used compared to the calorimetric measurement. 160 However, the heat value calculated from the indirect method sometimes underestimates the actual heat value due to the inconsistency in adsorption fitting.…”

Section: Evaluation Parameters and Co2 Adsorption Performance Of Amin...mentioning

confidence: 99%

Evaluation of amine-based solid adsorbents for direct air capture: a critical review

2023

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“…For this work, the material with the least parasitic energy was the best material. The total amount of energy required for CCS was the amount of heat required for separation [35]. This consists of two components: (1) the energy required to heat the adsorbent to achieve the desorption conditions (sensible heat);…”

Section: Co 2 Adsorption In the Solid Aminementioning

confidence: 99%

Experimental Study on Renewable Porous Carbon Dioxide Adsorbent Materials for Space Shuttles

Zhang

Wang²,

Liu³

et al. 2022

Energies

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Porous adsorbent material is promising to be used to regeneratively remove CO2 from space shuttles. In this work, the amount and isosteric heat of CO2 adsorption in solid amine are experimentally studied at pressures ranging from 0 to 6 bar and temperatures ranging from 20 °C to 60 °C. The amount and isosteric heat of water adsorption in the solid amine is tested at different humidities (relative humidity 30–80%). The effective thermal conductivity of the solid amine at different atmospheres (air, N2, CO2 and water), pressures and temperatures is also investigated. The results show that the best temperature for CO2 adsorption in the solid amine is 45 °C under dry conditions. The amount of water adsorption increases with enhanced humidity, while the isosteric heat of water adsorption remains a constant value. The effective thermal conductivity of the solid amine increases with an increase in pressure. The adsorbed phase (CO2 and water) in the solid amine makes a contribution to improving the effective thermal conductivity of solid amine particles. The above findings can help design a better adsorption system in space.

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Introducing mesoporosity in zeolite 4A bodies for Rapid CO2 capture

Cited by 39 publications

References 53 publications

Modeling, equilibrium and kinetics of CO2 adsorption in LTA zeolite obtained from clay

Modeling, equilibrium and kinetics of CO2 adsorption in LTA zeolite obtained from clay

Evaluation of amine-based solid adsorbents for direct air capture: a critical review

Experimental Study on Renewable Porous Carbon Dioxide Adsorbent Materials for Space Shuttles

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