Submit to Atmosphere Review for Atmosphere Propose a Special Issue

Journal Menu

Journal Browser

► Journal Browser

Advances in CO₂ Capture and Absorption

Print Special Issue Flyer
Special Issue Editors
Special Issue Information
Keywords
Benefits of Publishing in a Special Issue
Published Papers

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Air Pollution Control".

Deadline for manuscript submissions: closed (28 August 2024) | Viewed by 8970

Share This Special Issue

Special Issue Editor

Dr. Dezhong Yang

E-Mail Website
Guest Editor

School of Science, China University of Geosciences, Beijing 100083, China
Interests: ionic liquids; deep eutectic solvents; carbon capture; energy storage
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The unexpected amount of CO₂ emissions caused by anthropogenic activities is the main reason behind global warming. The growing severity of climate change signifies that more efforts are needed in order to reduce CO₂ release into atmosphere. The anthropogenic CO₂ emissions mainly come from the combustion of fossil fuels for power generation. Carbon capture, utilization and storage (CCUS) is considered an effective technology to curb CO₂ emissions in industry. Carbon capture is a crucial sector of CCUS technology and developing an efficient carbon capture method is the primary challenge faced by CCUS. The most used CO₂ absorption method in the industry is the alkanolamine-based scrubbing process. However, the alkanolamine-based scrubbing process suffers from several inherent drawbacks, such as the high energy cost of regeneration and solvent degradations. Therefore, it is highly desirable to develop and create new methods for efficient CO₂ capture and absorption.

The aim of this Special Issue, entitled “Advances in CO₂ Capture and Absorption”, is to showcase the recent research results related to efficient carbon capture technology. In this Special Issue, experimental and theoretical investigations that explore economically and ecologically methods related to carbon capture are welcome. Submissions to this Special Issue might include, but are not limited to, the following topics: the capture of carbon dioxide using liquid solvents; the capture of carbon dioxide using solid materials; the separation of carbon dioxide via membrane; carbon storage; and carbon utilization.

Dr. Dezhong Yang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atmosphere is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

CO₂ capture
carbon storage
CCUS
solvents
absorbents
CO₂ absorption
gas separation

Benefits of Publishing in a Special Issue

Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (6 papers)

Download All Papers

Order results

Result details

Show export options Show export options

Select all

Export citation of selected articles as:

Research

16 pages, 2182 KiB

Open AccessEditor’s ChoiceArticle

Enhancements of Triethanolamine CO₂ Absorption Rate and Degradation in the Presence of Nickel Nanoparticles Catalysts

by Harold W. Orendi, Kevin Joby and Lidija Šiller

Atmosphere 2024, 15(12), 1479; https://doi.org/10.3390/atmos15121479 - 11 Dec 2024

Viewed by 837

Abstract

Here, the catalytic and degradation effect of nickel nanoparticles (NiNPs) on triethanolamine (TEA) with CO₂ at 20 °C and 50 °C and a range of TEA concentrations (3–30 wt%) was studied. We show that TEA absorption rate of CO₂ can be enhanced with NiNPs, the maximum enhancement was 8.3% when compared to a control solution found at 50 °C with 30 wt% TEA alone. Additionally, the time for TEA to be fully loaded with CO₂ is reduced; compared to the control, NiNPs enhanced solutions were up to 26.3% faster. Also, to the best of our knowledge, this is the first time the degradation of TEA with NiNPs has been studied. TEA was subject to both oxygen (30 wt%, 55 °C, 0.35 L/min of air, 0.4 mol_CO2/mol_TEA, 7.5 mL/min of CO₂) and thermal degradation with and without NiNPs (30 wt%, 0.5 mol_CO2/mol_TEA, 135 °C). In both degradation experiments, surprisingly, there was no significant difference in TEA degradation in the presence of NiNPs. At high temperature (135 °C), the solution lost 19.2% and 20.3% of the original TEA, with and without NiNPs, respectively. In the presence of oxygen, the solution lost 30.5% and 33.6% of the original TEA, with and without NiNPs, respectively. This indicates that TEA or its mixture with other amines and NiNPs could improve post-combustion CO₂ capture. Full article

(This article belongs to the Special Issue Advances in CO₂ Capture and Absorption)

► Show Figures

Graphical abstract

20 pages, 8429 KiB

Open AccessEditor’s ChoiceArticle

Optimization of High-Temperature CO₂ Capture by Lithium Orthosilicate-Based Sorbents Using Response Surface Methodology

by Eleonora Stefanelli, Flavio Francalanci, Sandra Vitolo and Monica Puccini

Atmosphere 2024, 15(8), 908; https://doi.org/10.3390/atmos15080908 - 30 Jul 2024

Cited by 2 | Viewed by 1327

Abstract

The major challenge in the current context of the rising world energy demand is to limit the global temperature increase for mitigating climate change. This goal requires a large reduction of CO₂ emissions, mainly produced by power generation and industrial processes using fossil fuels. In this study, a novel methodology for K₂CO₃-doped Li₄SiO₄ sorbents production for CO₂ capture at high temperatures was adopted based on the Design of Experiments (DoE). This innovative approach systematically tested different synthesis (temperature and K₂CO₃ content) and adsorption conditions (sorption temperature and CO₂ concentration), allowing for the assessment of individual and interactive effects of process parameters. The Response Surface Methodology (RSM) was employed to obtain non-linear predictive models of CO₂ uptake and Li₄SiO₄ conversion. The results of RSM analysis evidenced a maximum adsorption capacity of 196.4 mg/g for a sorbent produced at 600 °C and with 36.9 wt% of K₂CO₃, tested at 500 °C and 4 vol% of CO₂. Whereas at 50 vol% of CO₂, the best uptake of 295.6 mg/g was obtained with a sorbent synthesized at 600 °C, containing less K₂CO₃ (17.1 wt%) and tested at a higher temperature (662 °C). These findings demonstrate that K₂CO₃-doped Li₄SiO₄ sorbents can be tailored to maximize CO₂ capture under various operating conditions, making them suitable for use in industrial processes. Full article

(This article belongs to the Special Issue Advances in CO₂ Capture and Absorption)

► Show Figures

Figure 1

18 pages, 3579 KiB

Open AccessArticle

Thermodynamic and Economic Analyses of a Novel Cooling, Heating and Power Tri-Generation System with Carbon Capture

by Linbo Yan, Ziyue Jia, Yang Liu, Cong Geng and Boshu He

Atmosphere 2024, 15(7), 836; https://doi.org/10.3390/atmos15070836 - 15 Jul 2024

Cited by 1 | Viewed by 1043

Abstract

The combined cooling, heating, and power (CCHP) system has attracted increasing attention due to its potential outstanding performance in thermodynamics, economics, and the environment. However, the conventional CCHP systems are carbon-intensive. To solve this issue, a low-carbon-emission CCHP system (LC-CCHP) is firstly proposed in this work by integrating a sorption-enhanced steam methane reforming (SE-SMR) process. In the LC-CCHP system, CO₂ is continuously captured by the calcium loop so that low-carbon energy can be generated. Then, the LC-CCHP system thermodynamic model, mainly consisting of a dual fluidized bed reactor which includes the SE-SMR reactor and a CaCO₃ calcination reactor, a hydrogen gas turbine, a CO₂ reheater, and a lithium bromide absorption chiller, is built. To prove that the LC-CCHP model is reliable, the system major sub-unit model predictions are compared against data from the literature in terms of thermodynamics and economics. Finally, the effects of reforming temperature (T_ref), the steam-to-carbon mole ratio (S/C), the calcium-to-carbon mole ratio (R_CC), the equivalent ratio for gas turbine (R_AE), and the hydrogen separation ratio (S_fg) on total energy efficiency (

η_{t e n}

), total exergy efficiency (

η_{t e x}

), and carbon capture capability (

R_{c m}

) are detected. It is found that the minimum exergy efficiency of 64.5% exists at the calciner unit, while the maximum exergy efficiency of 78.7% appears at the gas turbine unit. The maximum energy efficiency and coefficient of performance of the absorption chiller are 0.52 and 1.33, respectively. When

T_{r e f} = 600

°C,

S / C = 4.0

R_{C C} = 7.62

R_{A E} = 1.20,

and

S_{f g} = 0.27

, the

η_{t e n}

η_{t e x,}

and

R_{c m}

of the system can be ~61%, ~68%, and ~96%, and the average specific cost of the system is 0.024 USD/kWh, which is advanced compared with the parallel CCHP systems. Full article

(This article belongs to the Special Issue Advances in CO₂ Capture and Absorption)

► Show Figures

Figure 1

16 pages, 7354 KiB

Open AccessArticle

XCO₂ Super-Resolution Reconstruction Based on Spatial Extreme Random Trees

by Xuwen Li, Sheng Jiang, Xiangyuan Wang, Tiantian Wang, Su Zhang, Jinjin Guo and Donglai Jiao

Atmosphere 2024, 15(4), 440; https://doi.org/10.3390/atmos15040440 - 2 Apr 2024

Cited by 2 | Viewed by 1710

Abstract

Carbon dioxide (CO₂) is currently the most harmful greenhouse gas in the atmosphere. Obtaining long-term, high-resolution atmospheric column CO₂ concentration (XCO₂) datasets is of great practical significance for mitigating the greenhouse effect, identifying and controlling carbon emission sources, and achieving carbon cycle management. However, mainstream satellite observations provide XCO₂ datasets with coarse spatial resolution, which is insufficient to support the needs of higher-precision research. To address this gap, in this study, we integrate spatial information with the extreme random trees model and develop a new machine learning model called spatial extreme random trees (SExtraTrees) to reconstruct a 1 km spatial resolution XCO₂ dataset for China from 2016 to 2020. The results indicate that the predictive ability of spatial extreme random trees is more stable and has higher fitting accuracy compared to other methods. Overall, XCO₂ in China shows an increasing trend year by year, with the spatial distribution revealing significantly higher XCO₂ levels in eastern coastal regions compared to western inland areas. The contributions of this study are primarily in the following areas: (1) Considering the spatial heterogeneity of XCO₂ and combining spatial features with the advantages of machine learning, we construct the spatial extreme random trees model, which is verified to have high predictive accuracy. (2) Using the spatial extreme random trees model, we reconstruct high-resolution XCO₂ datasets for China from 2016 to 2020, providing data support for carbon emission reduction and related decision making. (3) Based on the generated dataset, we analyze the spatiotemporal distribution patterns of XCO₂ in China, thereby improving emission reduction policies and sustainable development measures. Full article

(This article belongs to the Special Issue Advances in CO₂ Capture and Absorption)

► Show Figures

Figure 1

19 pages, 7354 KiB

Open AccessArticle

The Characterization of Biodiversity and Soil Emission Activity of the “Ladoga” Carbon-Monitoring Site

by Evgeny Abakumov, Timur Nizamutdinov, Darya Zhemchueva, Azamat Suleymanov, Evgeny Shevchenko, Elena Koptseva, Anastasiia Kimeklis, Vyacheslav Polyakov, Evgenia Novikova, Grigory Gladkov and Evgeny Andronov

Atmosphere 2024, 15(4), 420; https://doi.org/10.3390/atmos15040420 - 28 Mar 2024

Cited by 1 | Viewed by 1364

Abstract

The global climate crisis forces mankind to develop carbon storage technologies. “Ladoga” carbon monitoring site is part of the Russian climate project “Carbon Supersites”, which aims to develop methods and technologies to control the balance of greenhouse gases in various ecosystems. This article shows the condition of soil and vegetation cover of the carbon polygon “Ladoga” using the example of a typical southern taiga ecosystem in the Leningrad region (Russia). It is revealed that soils here are significantly disturbed as a result of agrogenic impact, and the vegetation cover changes under the influence of anthropogenic activity. It has been found that a considerable amount of carbon is deposited in the soils of the carbon polygon; its significant part is accumulated in peat soils (60.0 ± 19.8 kg × m⁻² for 0–100 cm layer). In agrogenically disturbed and pristine soils, carbon stocks are equal to 12.8 ± 2.9 kg × m⁻² and 8.3 ± 1.3 kg × m⁻² in the 0–100 cm layer, respectively. Stocks of potentially mineralizable organic matter (0–10 cm) in peat soils are 0.48 ± 0.01 kg × m⁻²; in pristine soils, it is 0.58 ± 0.06 kg × m⁻². Peat soils are characterized by a higher intensity of carbon mineralization 9.2 ± 0.1 mg × 100 g⁻¹ × day⁻¹ with greater stability. Carbon in pristine soils is mineralized with a lower rate—2.5 ± 0.2 mg × 100 g⁻¹ × day⁻¹. The study of microbial diversity of soils revealed that the dominant phyla of microorganisms are Actinobacteria, Bacteroidetes, and Proteobacteria; however, methane-producing Archaea—Euryarchaeota—were found in peat soils, indicating their potentially greater emission activity. The results of this work will be useful for decision makers and can be used as a reference for estimating the carbon balance of the Leningrad region and southern taiga boreal ecosystems of the Karelian Isthmus. Full article

(This article belongs to the Special Issue Advances in CO₂ Capture and Absorption)

► Show Figures

Figure 1

12 pages, 2923 KiB

Open AccessEditor’s ChoiceCommunication

CO₂ Absorption by Solvents Consisting of TMG Protic Ionic Liquids and Ethylene Glycol: The Influence of Hydrogen Bonds

by Bohao Lu, Yixing Zeng, Mingzhe Chen, Shaoze Zhang and Dezhong Yang

Atmosphere 2024, 15(2), 229; https://doi.org/10.3390/atmos15020229 - 14 Feb 2024

Cited by 2 | Viewed by 1831

Abstract

Herein, the absorption of CO₂ by the TMG-based (TMG: 1,1,3,3-tetramethylguanidine) ionic liquids (ILs) and the absorbents formed by TMG ILs and ethylene glycol (EG) is studied. The TMG-based ILs used are formed by TMG and 4-fluorophenol (4-F-PhOH) or carvacrol (Car), and their viscosities are low at 25 °C. The CO₂ uptake capacities of [TMGH][4-F-PhO] and [TMGH][Car] are low (~0.09 mol CO₂/mol IL) at 25 °C and 1.0 atm. However, the mixtures [TMGH][4-F-PhO]-EG and [TMGH][Car]-EG show much higher capacities (~1.0 mol CO₂/mol IL) than those of parent ILs, which is unexpected because of the low CO₂ capacity of EG (0.01 mol CO₂/mol EG) in the same conditions. NMR spectra and theoretical calculations are used to determine the reason for these unexpected absorption behaviors. The spectra and theoretical results show that the strong hydrogen bonds between the [TMGH]⁺ cation and the phenolate anions make the used TMG-based ILs unreactive to CO₂, resulting in the low CO₂ capacity. In the Ils-EG mixtures, the hydrogen bonds formed between EG and phenolate anions can weaken the [TMGH]⁺–anion hydrogen bond strength, so ILs-EG mixtures can react with CO₂ and present high CO₂ capacities. Full article

(This article belongs to the Special Issue Advances in CO₂ Capture and Absorption)

► Show Figures

Journal Menu

Journal Browser

Advances in CO₂ Capture and Absorption

Share This Special Issue

Special Issue Editor

Special Issue Information

Keywords

Benefits of Publishing in a Special Issue

Published Papers (6 papers)

Research

Further Information

Guidelines

MDPI Initiatives

Follow MDPI

Journal Menu

Journal Browser

Advances in CO2 Capture and Absorption

Share This Special Issue

Special Issue Editor

Special Issue Information

Keywords

Benefits of Publishing in a Special Issue

Published Papers (6 papers)

Research

Further Information

Guidelines

MDPI Initiatives

Follow MDPI

Advances in CO₂ Capture and Absorption