LiOH-embedded zeolite for carbon dioxide capture under ambient conditions

Cho, Youngmin; Lee, Ji Yun; Bokare, Alok Diwakar; Kwon, Soon−Bark; Park, Duckshin; Jung, Woo-Sung; Choi, Jin-Sik; Yang, Young‐Min; Lee, Ju-Yeol; Choi, Wonyong

doi:10.1016/j.jiec.2014.07.030

Cited by 38 publications

(10 citation statements)

References 37 publications

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“…Solid sorbents capable of capturing CO 2 in gaseous effluents show the best performance in the presence of moisture. Water has a catalytic effect in the process of CO 2 absorption by hydroxides 12 . The steam, in fact, performs a catalytic action for the diffusion of CO 2 through the upper carbonated layer of the sorbent 17 – 19 .…”

Section: Resultsmentioning

confidence: 99%

“…The adsorption capacity of LiOH is strongly dependent from moisture content in the CO 2 stream 11 . A study on LiOH adsorbed zeolytes demonstrated that at ambient temperature the maximum CO 2 uptake occurred at 65–70% relative humidity values 12 . Formation of lithium hydroxide monohydrate as an intermediate compound has been postulated to explain the effect of water vapor on the reaction 13 .…”

Section: Introductionmentioning

confidence: 99%

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Post combustion CO2 capture with calcium and lithium hydroxide

Costagliola

Prati

Perretta

2022

Sci Rep

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A small-scale plant was built for measuring the ability of solid sorbents towards the capture of carbon dioxide (CO2) in exhaust flue gas from an internal combustion engine. The investigated sorbents were calcium and lithium hydroxides. Both sorbents are low cost and used in the breathing gas purification systems. The carbonation capacity of each sorbent was measured for different sorbent granulometry (pellets and powder), different temperature (from ambient up to 300 °C), gas space velocity, moisture content and chemical composition of the gaseous stream. The aim was, in fact, to expose the sorbents to a gas stream with chemical and physical parameters close to those at the exhaust of an internal combustion engine. Carbonation capacity was measured with a double technique: on-line by continuously CO2 measurement with a non-dispersive infrared analyzer and off-line by using scanning electron microscopy on carbonated sorbents. Experimental results showed good CO2 uptake capacity of calcium hydroxide at low temperature (between 20 and 150 °C). Performance improvements came from the fine granulometry due to the increased exposed surface area; moreover, the presence of the moisture in gas stream also enhanced CO2 capture. The presence of sulphur dioxide and nitric oxide, instead, greatly decreased the carbonation capacity of sorbents.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Post combustion CO2 capture with calcium and lithium hydroxide

Costagliola

Prati

Perretta

2022

Sci Rep

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“…Cho et al in 2015, modified the commercial zeolite of 13X and 5A with lithium hydroxide (LEZ-13X and LEZ-5A) to remove carbon dioxide in the indoor simulated examined. The BET levels of zeolite adsorbents after modification with lithium hydroxide are higher than unmodified zeolite types, as a result, it showed an increase in the adsorption capacity 30 . Krishnan et al 31 in 2015, proposed a system that made of activated carbon filter consists of a matrix board, lithium hydroxide and calcium hydroxide.…”

Section: Introductionmentioning

confidence: 94%

Lithium hydroxide as a high capacity adsorbent for CO2 capture: experimental, modeling and DFT simulation

Ahmadi

Ghaemi

Qasemnazhand

2023

Sci Rep

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In this work, the potential of monohydrate Lithium hydroxide (LiOH) as a high capacity adsorbent for CO2 capture was investigated experimentally and theoretically. The effects of operating parameters, including temperature, pressure, LiOH particle size and LiOH loading, on the CO2 capture in a fixed-bed reactor have been experimentally explored using response surface methodology (RSM) based on central composite design. The optimum conditions obtained by the RSM for temperature, pressure, mesh and maximum adsorption capacity were calculated as 333 K, 4.72 bar, 200 micron and 559.39 mg/g, respectively. The experiments were evaluated using isotherm, kinetic and thermodynamic modeling. Isotherm modeling showed that Hill model could deliver a perfect fit to the experimental data, based on the closeness of the R2-value to unity. The kinetics models showed that the process was chemical adsorption and obeyed the second order model. In addition, thermodynamic analysis results showed that the CO2 adsorption was spontaneous and exothermic in nature. In addition, based on the density functional theory, we investigated the chemical stability of LiOH atomic clusters and examined the effects of LiOH nanonization on the physical attraction of carbon dioxide.

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“…Due to the physical adsorption nature of microporous zeolite adsorbents and their rapid decrease in capture capacity with temperature, they are mainly used at low temperature. Their adsorption performance also decreases under humid conditions [169]. Amine loading can partly overcome these problems; however, the small pore size of microporous zeolites hinders amine loading and CO2 diffusion into pores.…”

Section: Amine-loaded Zeolitesmentioning

confidence: 99%

A review of N-functionalized solid adsorbents for post-combustion CO2 capture

et al. 2020

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Over the past decade, amine-loaded solid adsorbents for capturing CO2 from power plants have been widely studied. Various nitrogen (N) sources have been used for this purpose, and the current range of adsorbents, referred to here as N-functionalized solid adsorbent (NFSAs), are the subject of this review. The main synthesis methods of NFSAs are described and recent progress in the field discussed. Criteria for improving NFSA performance are highlighted with reference to a variety of solid supports, providing guidance on the selection of highly efficient, inexpensive adsorbents. A thorough assessment of adsorption mechanisms and factors influencing the adsorption process is given. The review concludes by exploring future research and development opportunities, as well as pathways for commercializing NFSAs.

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LiOH-embedded zeolite for carbon dioxide capture under ambient conditions

Cited by 38 publications

References 37 publications

Post combustion CO2 capture with calcium and lithium hydroxide

Post combustion CO2 capture with calcium and lithium hydroxide

Lithium hydroxide as a high capacity adsorbent for CO2 capture: experimental, modeling and DFT simulation

A review of N-functionalized solid adsorbents for post-combustion CO2 capture

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