Lignocellulose-based adsorbents: A spotlight review of the effective parameters on carbon dioxide capture process

Rouzitalab, Zahra; Maklavany, Davood Mohammady; Jafarinejad, Shahryar; Rashidi, Alimorad

doi:10.1016/j.chemosphere.2019.125756

Cited by 46 publications

(20 citation statements)

References 215 publications

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“…Recently, a series of technologies have been applied to capture and separate CO 2 from flue gas, such as absorption, membrane separation, microalgae biological fixation, cryogenic separation, adsorption, and so on. Among these methods, adsorption is regarded to have good application prospects because it has the advantages of low corrosion, simple operation, and strong regeneration.…”

Section: Introductionmentioning

confidence: 99%

Removal of CO₂ from Flue Gas Using Seaweed Porous Carbons Prepared by Urea Doping and KOH Activation

et al. 2020

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Capture of CO 2 and utilization of marine biomass resources have attracted more and more attention due to climate change and lack of terrestrial resources. In this article, using sargassum and enteromorpha as raw materials, two kinds of seaweed porous carbons adsorbents were prepared using urea doping and KOH activation to capture CO 2 from flue gas. Characterization methods such as BET, pH, SEM, FTIR, and XPS were used to investigate the physicochemical properties of seaweed porous carbon adsorbents. The main parameters and flue gas components that may affect the CO 2 adsorption, as well as the adsorption mechanism were also studied. The results show that compared with inactivated biochars, all of the specific surface areas, the surface functional groups, and the CO 2 adsorption capacities of the seaweed porous carbons adsorbents (e.g., NSK (2) and NEK (2)) are significantly increased. The highest CO 2 adsorption capacities of NSK (2) and NEK (2) are up to 4.06 and 3.25 mmol/g at 25 °C, respectively. Moreover, NSK (2) and NEK (2) still show excellent CO 2 adsorption performance after 10 regeneration experiments (reaching 3.69 and 2.93 mmol/g, respectively). Other flue gas components such as O 2 and NO have no effect on the CO 2 adsorption performance of NSK (2) and NEK (2), while H 2 O (g) and SO 2 exhibit an inhibitory effect. The pseudo-first-order model can reasonably explain the CO 2 adsorption processes of two kinds of seaweed porous carbons adsorbents, showing that external mass transfer is the main control step for the CO 2 capture. Thermodynamic analysis results demonstrate that physical adsorption is dominant in the CO 2 adsorption process over NSK (2) and NEK (2), and chemical adsorption only plays a supplementary role.

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Section: Introductionmentioning

confidence: 99%

Removal of CO₂ from Flue Gas Using Seaweed Porous Carbons Prepared by Urea Doping and KOH Activation

et al. 2020

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“…Cellulose-based filters and composites have also found ample application in the field of CO 2 capture and storage. For this topic, which would require an ad hoc discussion and for this reason is not object of this contribution, we refer the reader to recent and specific review literature [10].…”

Section: Introductionmentioning

confidence: 99%

Cellulose for the Production of Air-Filtering Systems: A Critical Review

et al. 2022

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The control of airborne contaminants is of great interest in improving air quality, which has deteriorated more and more in recent years due to strong industrial growth. In the last decades, cellulose has been largely proposed as suitable feedstock to build up eco-friendly materials for a wide range of applications. Herein, the issue regarding the use of cellulose to develop air-filtering systems is addressed. The review covers different cellulose-based solutions, ranging from aerogels and foams to membranes and films, and to composites, considering either particulate filtration (PM10, PM2.5, and PM0.3) or gas and water permeation. The proposed solutions were evaluated on the bases of their quality factor (QF), whose high value (at least of 0.01 Pa−1 referred to commercial HEPA (high-efficiency particulate air) filters) guarantees the best compromise between high filtration efficiency (>99%) and low pressure drop (<1 kPa/g). To face this aspect, we first analyzed the different morphological aspects which can improve the final filtration performance, outlining the importance on using nanofibers not only to increase surface area and to modulate porosity in final solutions, but also as reinforcement of filters made of different materials. Besides the description of technological approaches to improve the mechanical filtration, selected examples show the importance of the chemical interaction, promoted by the introduction of active functional groups on cellulose (nano)fibers backbone, to improve filtration efficiency without reducing filter porosity.

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“…The thermodynamic results of adsorption show that the PCE adsorption process on β-FeOOH-AC is a spontaneous, endothermic, monolayer, and multilayer adsorption process joint with a physical process that occurs through an ion-exchange surface adsorption mechanism [9]. In the adsorption process, the price of the adsorbent is one of the most important factors in the economics of the process, so most researchers try to build and select a cheap adsorbent in this process [10]. Lignocellulose wastes are a good option for cheap adsorbents, as the existing wastes enter efficient cycles.…”

Section: Introductionmentioning

confidence: 99%

Adsorption methodology: Synthesis of Nano-structured nitrogen-doped porous carbon adsorbents for perchloroethylene vapor adsorption

Kahangi

Rashidi²,

Samipoorgiri

2020

Anal. Method Environ. Chem. J.

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The perchloroethylene (PCE, tetrachloroethylene), as a representative of chlorinated ethylenes and volatile organic compounds (VOCs), can be easily transported and remain in the atmosphere due to its volatility and stability properties. As a result, there is a crucial need to reduce this pollution to the extent permitted by international standards. The concentration of PCE determined with Gas chromatography–mass spectrometry analyzer (GC-MS). Activated nanocarbons (ACs) doped with nitrogen functional groups were prepared using the walnut shell as a precursor to evaluate their adsorption capacity for PCE vapors. Several techniques, including scanning electron microscopy (SEM), N2 adsorption-desorption, and the Fourier transforms infrared spectrometry (FTIR), were applied to characterize the physical-chemical properties of the ACs. It is found that the PCE adsorption considerably increased on the nitrogen-doped ACs (KNCWS) due to their structural and surface charge properties. By conducting kinetic study, the pseudo-first-order model matched well with experimental data.

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Lignocellulose-based adsorbents: A spotlight review of the effective parameters on carbon dioxide capture process

Cited by 46 publications

References 215 publications

Removal of CO₂ from Flue Gas Using Seaweed Porous Carbons Prepared by Urea Doping and KOH Activation

Removal of CO₂ from Flue Gas Using Seaweed Porous Carbons Prepared by Urea Doping and KOH Activation

Cellulose for the Production of Air-Filtering Systems: A Critical Review

Adsorption methodology: Synthesis of Nano-structured nitrogen-doped porous carbon adsorbents for perchloroethylene vapor adsorption

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Lignocellulose-based adsorbents: A spotlight review of the effective parameters on carbon dioxide capture process

Cited by 46 publications

References 215 publications

Removal of CO2 from Flue Gas Using Seaweed Porous Carbons Prepared by Urea Doping and KOH Activation

Removal of CO2 from Flue Gas Using Seaweed Porous Carbons Prepared by Urea Doping and KOH Activation

Cellulose for the Production of Air-Filtering Systems: A Critical Review

Adsorption methodology: Synthesis of Nano-structured nitrogen-doped porous carbon adsorbents for perchloroethylene vapor adsorption

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Product

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Removal of CO₂ from Flue Gas Using Seaweed Porous Carbons Prepared by Urea Doping and KOH Activation

Removal of CO₂ from Flue Gas Using Seaweed Porous Carbons Prepared by Urea Doping and KOH Activation