Adsorption of CO2 on palm shell based activated carbon modified by deep eutectic solvent: Breakthrough adsorption study

Hussin, Farihahusnah; Aroua, Mohamed Kheireddine; Yusoff, Rozita

doi:10.1016/j.jece.2021.105333

Cited by 50 publications

(37 citation statements)

References 57 publications

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“…Regeneration is the most important factor used to determine the exhausted/spent adsorbent's adsorption capacity for multiple cycles of CO 2 capture. It gives information on the recyclable performance of the adsorbent and ensures that the adsorbent is more efficient, easy to operate, non‐toxic, highly stable, environment‐ friendly, and recyclable 29 . The adsorption‐desorption tests are performed for 12 consecutive cycles by using the same adsorbent sample.…”

Section: Resultsmentioning

confidence: 99%

“…The cropped S‐shape is mainly related to the excellent porosity of the adsorbent sample. For most cases, the breakthrough curve of activated carbon seems to be skewed or steeper 29 . The maximum temperature in the adsorption chamber decreases the adsorption capacity of the adsorbent which minimizes the holding capacity of the adsorbate molecule.…”

Section: Resultsmentioning

confidence: 99%

“…The important pore characteristics of activated carbon are pore volume, pore shape, pore size distribution, and surface area. 29 It is evident from the figure that the activated carbon sample exhibits a good porous structure and distribution of wide cavities present on its surface. The KOH-impregnated activated carbon sample presents an amorphous structure with more pore formation, thus favoring the gas capture process.…”

Section: Surface Morphology and Pore Structurementioning

confidence: 94%

“…Porosity is one of the most prominent adsorptive properties considered for activated carbon. The important pore characteristics of activated carbon are pore volume, pore shape, pore size distribution, and surface area 29 . It is evident from the figure that the activated carbon sample exhibits a good porous structure and distribution of wide cavities present on its surface.…”

Section: Characterization Of Activated Carbonmentioning

confidence: 99%

“…It gives information on the recyclable performance of the adsorbent and ensures that the adsorbent is more efficient, easy to operate, non-toxic, highly stable, environment-friendly, and recyclable. 29 The adsorption-desorption tests are performed for 12 consecutive cycles by using the same adsorbent sample. Figure 13 portrays the variation of CO 2 adsorption capacity with several cycles.…”

Section: Effect Of Number Of Cycles On Co 2 Adsorption Capacitymentioning

confidence: 99%

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Preparation, characterization, and performance of activated carbon for CO₂ adsorption from CI engine exhaust

2022

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Mitigation of carbon dioxide (CO 2 ) from various sources is a major challenge in the world today. Apart from attempts to control CO 2 emissions from large CO 2 emitting sources such as coal-fired power plants and significant fossil fuel-consuming industries, there have also been attempts made to control CO 2 in internal combustion (IC) engines. Compression ignition (CI) engines find their applications mainly in automotive vehicles, decentralized power generation units, standby power requirements in hospitals and educational institutions. In recent years, there has been a great interest in developing eco-friendly and low-cost adsorbents for CO 2 capture via the adsorption method. This investigation explores the possibility of using activated carbon obtained from coconut shell for capturing CO 2 in a CI engine exhaust. Surface texture characteristics and physicochemical properties of the coconut shell-based activated carbon are determined for their suitability as a potential adsorbent for CO 2 adsorption. Furthermore, an attempt is made to combine a postcombustion carbon capture device in a CI engine. For this purpose, an in-house fabricated adsorption chamber is packed with activated carbon and attached to a single-cylinder, four-stroke, naturally aspirated, direct injection (DI) diesel engine exhaust. The test engine is operated on two different fuels; (i) diesel (D100) and (ii) biodiesel-diesel blend comprising 20% of Jatropha methyl ester (JME) and 80% of diesel (JME20). The engine performance and CO 2 emission without and with the adsorption chamber are evaluated for D100 and JME20 operations. Further, the performance parameters of the adsorption chamber packed with activated carbon are also evaluated in both fuel operations. The results are analyzed, discussed, and presented in this paper.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Surface Morphology and Pore Structurementioning

confidence: 94%

Section: Characterization Of Activated Carbonmentioning

confidence: 99%

Section: Effect Of Number Of Cycles On Co 2 Adsorption Capacitymentioning

confidence: 99%

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Preparation, characterization, and performance of activated carbon for CO₂ adsorption from CI engine exhaust

2022

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Comparison of the Antibacterial Activity of Selected Deep Eutectic Solvents (DESs) and Deep Eutectic Solvents Comprising Organic Acids (OA‐DESs) Toward Gram‐Positive and Gram‐Negative Species

Swebocki,

Kocot,

Barras

et al. 2024

Adv Healthcare Materials

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Deep eutectic solvents (DESs) have been intensively investigated in recent years for their antibacterial properties, with DESs that comprise organic acids (OA‐DESs) showing promising antibacterial action. However, the literature is lacking a more in‐depth investigation that would cover the relative minimum inhibitory (MIC) and minimum bactericidal (MBC) values of these formulations, their mechanism‐of‐action, and concentration‐time‐dependent activity (TKA). In fact, a majority of the reports focused only on a few strains, which is not enough to determine the antibacterial potential of a substance. To bridge this gap, the antibacterial activity of classical DESs and OA‐DESs was assessed on 12 Gram‐negative and Gram‐positive bacteria strains, with some of them exhibiting specific resistance towards antibiotics. The investigated formulations of OA‐DESs comprised glycolic, malic, malonic, and oxalic acids as representatives of this group. Using a range of microbiological assays as well as physicochemical characterization methods, a major difference of the effectiveness between the two groups was demonstrated, with OA‐DESs exhibiting, as expected, greater antibacterial effectiveness than classical DESs. Most interestingly, slight differences in the MIC/MBC values as well as TKA profiles were observed between Gram‐positive and Gram‐negative strains. Transmission electron microscopy (TEM) analysis revealed the effect of the treatment of the bacteria with the representatives of the both groups of DESs, which allowed us to better understand the possible mechanism‐of‐action of these novel materials.This article is protected by copyright. All rights reserved

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Comparative Performance Assessment of Adsorbents for CO₂ Capture via Physisorption in a Diesel Engine Exhaust

Maniarasu

2023

CLEAN Soil Air Water

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The atmospheric carbon dioxide (CO2) concentration has been consistently increasing each year throughout the world. Internal combustion (IC) engines are significant contributors to CO2 emissions. This study explores the possibility of employing effective biomass‐based adsorbents to mitigate CO2 from a diesel engine exhaust. As a first step, two distinct agro‐wastes, namely, i) corn cob and ii) sugarcane bagasse, are used to prepare inexpensive and efficient activated carbons. The two main steps in the activated carbon preparation are a) carbonization and b) activation. The derived activated carbons are subjected to discrete analytical techniques to examine their structural and textural characteristics, surface functional groups, and physical, chemical, and adsorptive properties. As a second step, the exhaust treatment chamber unit is filled with the adsorbents one by one and is connected to the exhaust of the constant pressure heat addition engine. A single‐cylinder, four‐stroke, naturally‐aspirated, air‐cooled, direct injection (DI) compression ignition (CI) engine is used in the experimental investigations. The essential findings show that ≈68 and 60% of CO2 emissions are adsorbed in the test engine by utilizing corn cob and sugarcane bagasse adsorbents, respectively. The results show that during the D100 and JME20 operations, the prospective adsorbents can curb more than 40% of overall CO2 emissions.

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Adsorption of CO2 on palm shell based activated carbon modified by deep eutectic solvent: Breakthrough adsorption study

Cited by 50 publications

References 57 publications

Preparation, characterization, and performance of activated carbon for CO₂ adsorption from CI engine exhaust

Preparation, characterization, and performance of activated carbon for CO₂ adsorption from CI engine exhaust

Comparison of the Antibacterial Activity of Selected Deep Eutectic Solvents (DESs) and Deep Eutectic Solvents Comprising Organic Acids (OA‐DESs) Toward Gram‐Positive and Gram‐Negative Species

Comparative Performance Assessment of Adsorbents for CO₂ Capture via Physisorption in a Diesel Engine Exhaust

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Adsorption of CO2 on palm shell based activated carbon modified by deep eutectic solvent: Breakthrough adsorption study

Cited by 50 publications

References 57 publications

Preparation, characterization, and performance of activated carbon for CO2 adsorption from CI engine exhaust

Preparation, characterization, and performance of activated carbon for CO2 adsorption from CI engine exhaust

Comparison of the Antibacterial Activity of Selected Deep Eutectic Solvents (DESs) and Deep Eutectic Solvents Comprising Organic Acids (OA‐DESs) Toward Gram‐Positive and Gram‐Negative Species

Comparative Performance Assessment of Adsorbents for CO2 Capture via Physisorption in a Diesel Engine Exhaust

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Product

Resources

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Preparation, characterization, and performance of activated carbon for CO₂ adsorption from CI engine exhaust

Preparation, characterization, and performance of activated carbon for CO₂ adsorption from CI engine exhaust

Comparative Performance Assessment of Adsorbents for CO₂ Capture via Physisorption in a Diesel Engine Exhaust