Carbon Capture Science and Technology (CCST), 2nd Volume

Topic Information

Dear Colleagues,

As CO₂ is a major greenhouse gas, its increased emissions have led to global climate change and environmental pollution. To realize the economy's green, low-carbon, and sustainable development, carbon capture science and technology (CCST) is a vital and potentially effective route to substantially decrease CO₂ emissions. Since the combustion of fossil fuels produces the majority of CO₂ emissions, the most direct way is to capture and purify CO₂ from emission sources (power plants, steel plants, etc.). In addition, removing or separating CO₂ is also urgently important in chemical processes or specific occasions (fermentation plants, natural gas purification, biogas purification, sterile wards, etc.). Meanwhile, CO₂ has huge applications in food processing, the electronic industry, enhanced oil recovery (EOR), enhanced coal bed methane (ECBM), and other fields. Therefore, CCST has great scientific significance and engineering application value for environmental protection, energy development, and industrial production.

This Topic is oriented toward experimental research and theoretical analysis of phenomena related to pre-combustion and post-combustion carbon capture, materials- and chemistry-related carbon capture science, environmental, social, and political analysis of carbon capture technologies, CO₂ Capture Process, CO₂ utilization other than EOR and mineralization, as well as other research related to carbon emission reduction. Of particular interest are articles addressing issues encountered in  CO₂ capture and storage technologies developments, the effective and economical use of CO₂, lifecycle assessments, and techno-economic analyses to evaluate the various CCST processes. Please contact the editors if you have questions or wish to discuss an idea.

Dr. Zilong Liu
Dr. Meixia Shan
Dr. Yakang Jin
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Energies energies	3.0	6.2	2008	17.5 Days	CHF 2600	Submit
Molecules molecules	4.2	7.4	1996	15.1 Days	CHF 2700	Submit
Processes processes	2.8	5.1	2013	14.4 Days	CHF 2400	Submit
Separations separations	2.5	3.0	2014	12.4 Days	CHF 2600	Submit
Sustainability sustainability	3.3	6.8	2009	20 Days	CHF 2400	Submit

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All Energies Molecules Processes Separations Sustainability

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26 pages, 3797 KiB  

Open AccessArticle

CO₂ Storage in Subsurface Formations: Impact of Formation Damage

by Amin Shokrollahi, Syeda Sara Mobasher, Kofi Ohemeng Kyei Prempeh, Parker William George, Abbas Zeinijahromi, Rouhi Farajzadeh, Nazliah Nazma Zulkifli, Mohammad Iqbal Mahammad Amir and Pavel Bedrikovetsky

Energies 2024, 17(17), 4214; https://doi.org/10.3390/en17174214 - 23 Aug 2024

Viewed by 377

Abstract

The success of CO₂ storage projects largely depends on addressing formation damage, such as salt precipitation, hydrate formation, and fines migration. While analytical models for reservoir behaviour during CO₂ storage in aquifers and depleted gas fields are widely available, models addressing [...] Read more.

The success of CO₂ storage projects largely depends on addressing formation damage, such as salt precipitation, hydrate formation, and fines migration. While analytical models for reservoir behaviour during CO₂ storage in aquifers and depleted gas fields are widely available, models addressing formation damage and injectivity decline are scarce. This work aims to develop an analytical model for CO₂ injection in a layer-cake reservoir, considering permeability damage. We extend Dietz’s model for gravity-dominant flows by incorporating an abrupt permeability decrease upon the gas-water interface arrival in each layer. The exact Buckley-Leverett solution of the averaged quasi-2D (x, z) problem provides explicit formulae for sweep efficiency, well impedance, and skin factor of the injection well. Our findings reveal that despite the induced permeability decline and subsequent well impedance increase, reservoir sweep efficiency improves, enhancing storage capacity by involving a larger rock volume in CO₂ sequestration. The formation damage factor d, representing the ratio between damaged and initial permeabilities, varies from 0.016 in highly damaged rock to 1 in undamaged rock, resulting in a sweep efficiency enhancement from 1–3% to 50–53%. The developed analytical model was applied to predict CO₂ injection into a depleted gas field. Full article

(This article belongs to the Topic Carbon Capture Science and Technology (CCST), 2nd Volume)

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20 pages, 3968 KiB  

Open AccessArticle

Carbon Footprint Quantification and Reduction Potential of Ecological Revetment in Water Net Region of China: Case Study in Yancheng, Jiangsu Province

by Kun Liu, Binrong Zhou, Zijie Yang, Yusheng Zhang and Dianyuan Ding

Sustainability 2024, 16(16), 6902; https://doi.org/10.3390/su16166902 - 12 Aug 2024

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Abstract

With emphasis on constructing low-carbon cities, the renovation of the riverbank highlights energy conservation and carbon reduction. However, methods and standards for quantifying carbon emissions during ecological river channel construction are currently lacking. There is a scientific gap in research into carbon footprint [...] Read more.

With emphasis on constructing low-carbon cities, the renovation of the riverbank highlights energy conservation and carbon reduction. However, methods and standards for quantifying carbon emissions during ecological river channel construction are currently lacking. There is a scientific gap in research into carbon footprint assessment and reduction potential in ecological revetment technologies in water networks of China. This study attempts to clarify the carbon emission factors of different ecological revetment technologies and explore the carbon reduction potential during the construction stage of ecological rivers from the river revetment design, construction process and materials. The results show that in the carbon emission factors of six ecological revetment technologies, building materials have the largest adjusting potential for carbon reduction. The concrete material is responsible for 55.37–95.86% of carbon emissions in six ecological river technologies, with an average proportion of 69.96%. Accordingly, the concrete material emerges as the primary contributor to carbon emissions in ecological river engineering, followed by gasoline truck transportation and earthwork excavation. Moreover, the carbon emissions from ecological frame structures were the largest, followed by those of block structures, gabion structures, planted concrete and interlocking blocks and the wooden stake structure has the smallest carbon footprint. The choice of ecological revetment technologies is not only related to the realisation of regional water conservancy functions, but it also affects the carbon emissions of water conservancy projects. Engineers and decision-makers should pay great attention to the optimal design of the project, selection of low-carbon materials, energy saving and emission reduction in the construction process. This research not only provides guidance for design units in selecting appropriate river revetment technologies but also offers a theoretical foundation and data support for construction units to optimise their construction process management. Full article

(This article belongs to the Topic Carbon Capture Science and Technology (CCST), 2nd Volume)

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