Carbon Dioxide Capture or Removal and Valorisation: Advances in the Development of Materials and Technologies

Topic Information

Dear Colleagues,

The energetic transition requires the replacement of fossil fuels with renewable energy sources, along with the development of innovative decarbonation technologies and the establishment of a circular economy model. Developing and deploying carbon capture (from fixed sources) or removal (from the atmosphere) technologies using innovative CO₂ capture materials and CO₂ valorization in short- or long-lived biofuels or green products are essential to reach carbon neutrality or negative emissions targets. This Special Topic, “Carbon Dioxide Capture or Removal and Valorisation: Advances in the Development of Materials and Technologies”, will address topics related, but not limited to:

• Advances in CO₂ sorbent properties for carbon removal (e.g., direct air capture, mineralization, biochar) and capture (e.g., post-combustion and pre-combustion conditions);
• Enhancement of natural and synthetic sorbent materials properties for CO₂ uptake;
• Stability, activity, and regeneration of sorbents under different technological applications at low, medium, or high temperatures;
• Dual-function materials for CO₂ capture and conversion;
• Development of catalysts for CO₂ conversion to biofuels and green products;
• Thermal-, photo-, electro-, bio- and plasma catalysis applications in CO₂ conversion;
• Carbon capture from power plants and industrial sectors and carbon removal from the air—novel technologies, integrated concepts, and methodologies;
• Conversion of CO₂ into fuels and chemicals through biological, thermal, electrochemical, and photochemical processes. In this topic, original papers or reviews are welcome.

Dr. Paula Teixeira
Dr. María Pilar Lisbona
Dr. Carmen Bacariza
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Catalysts catalysts	3.9	6.3	2011	14.3 Days	CHF 2700	Submit
Clean Technologies cleantechnol	3.8	4.5	2019	26.6 Days	CHF 1600	Submit
Energies energies	3.2	5.5	2008	16.1 Days	CHF 2600	Submit
Gases gases	-	-	2021	15.0 days *	CHF 1000	Submit
Sustainability sustainability	3.9	5.8	2009	18.8 Days	CHF 2400	Submit

* Median value for all MDPI journals in the second half of 2023.

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Published Papers (2 papers)

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All Catalysts Clean Technol. Energies Gases Sustainability

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16 pages, 618 KiB  

Open AccessArticle

Carbon Dioxide Capture under Low-Pressure Low-Temperature Conditions Using Shaped Recycled Fly Ash Particles

by Sherif Fakher, Abdelaziz Khlaifat and Abdullah Hassanien

Gases 2024, 4(2), 117-132; https://doi.org/10.3390/gases4020007 - 23 May 2024

Viewed by 192

Abstract

Carbon-capture technologies are extremely abundant, yet they have not been applied extensively worldwide due to their high cost and technological complexities. This research studies the ability of polymerized fly ash to capture carbon dioxide (CO₂) under low-pressure and low-temperature conditions via [...] Read more.

Carbon-capture technologies are extremely abundant, yet they have not been applied extensively worldwide due to their high cost and technological complexities. This research studies the ability of polymerized fly ash to capture carbon dioxide (CO₂) under low-pressure and low-temperature conditions via physical adsorption. The research also studies the ability to desorb CO₂ due to the high demand for CO₂ in different industries. The adsorption–desorption hysteresis was measured using infrared-sensor detection apparatus. The impact of the CO₂ injection rate for adsorption, helium injection rate for desorption, temperature, and fly ash contact surface area on the adsorption–desorption hysteresis was investigated. The results showed that change in the CO₂ injection rate had little impact on the variation in the adsorption capacity; for all CO₂ rate experiments, the adsorption reached more than 90% of the total available adsorption sites. Increasing the temperature caused the polymerized fly ash to expand, thus increasing the available adsorption sites, thus increasing the overall adsorption volume. At low helium rates, desorption was extremely lengthy which resulted in a delayed hysteresis response. This is not favorable since it has a negative impact on the adsorption–desorption cyclic rate. Based on the results, the polymerized fly ash proved to have a high CO₂ capture capability and thus can be applied for carbon-capture applications. Full article

(This article belongs to the Topic Carbon Dioxide Capture or Removal and Valorisation: Advances in the Development of Materials and Technologies)

20 pages, 5875 KiB  

Open AccessArticle

Production of Sustainable Adsorbents for CO₂ Capture Applications from Food Biowastes

by Fernando Rubiera, Carlos Córdoba, Tamara Pena and Marta G. Plaza

Energies 2024, 17(5), 1205; https://doi.org/10.3390/en17051205 - 3 Mar 2024

Viewed by 1034

Abstract

Traditional methods to develop biomass-based carbon adsorbents generally involve carbonization followed by chemical or physical activation. However, routes involving the hydrothermal treatment of biomass are receiving growing interest. In this work, two different strategies for the synthesis of sustainable CO₂ adsorbents are [...] Read more.

Traditional methods to develop biomass-based carbon adsorbents generally involve carbonization followed by chemical or physical activation. However, routes involving the hydrothermal treatment of biomass are receiving growing interest. In this work, two different strategies for the synthesis of sustainable CO₂ adsorbents are compared, i.e., in situ ionic activation and hydrothermal treatment followed by activation with CO₂. The latter is a green and simple procedure that does not require the addition of chemicals or acid-washing stages, and which leads to carbon adsorbents with relatively high CO₂ adsorption capacity at low pressures, up to 0.64 mmol g⁻¹ at 15 kPa and 50 °C, conditions relevant for postcombustion CO₂ capture applications. On the other hand, in situ ionic activation can lead to carbon adsorbents with superior CO₂ adsorption capacity in the aforementioned conditions, 0.78 mmol g⁻¹, and with reduced cost and environmental impact compared to conventional chemical activation. Full article

(This article belongs to the Topic Carbon Dioxide Capture or Removal and Valorisation: Advances in the Development of Materials and Technologies)

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