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Energies
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Novel Technologies for Carbon Dioxide Sequestration
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Novel Technologies for Carbon Dioxide Sequestration

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "B3: Carbon Emission and Utilization".

Deadline for manuscript submissions: closed (28 February 2022) | Viewed by 6612

Special Issue Editor

Prof. Dr. Jorge Gabitto

E-Mail Website
Guest Editor
Chemical Engineering Department, Prairie View A&M University. Prairie View, TX 77446, USA.
Interests: carbon dioxide sequestration methods; water purification and heavy ion separation by electrochemical methods; blue energy production cycles
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Greenhouse gases, especially carbon dioxide, pose a significant threat to human societies all over the planet. The burning of fossil fuels has led to an increase in the atmospheric CO2 concentration of more than 45% relative to the pre-industrial era. In the USA alone, power plant CO2 releases comprise 55% of total CO2 emissions. Until a successful transition to renewal energy sources is accomplished, there is an urgent need for CO2 capture technologies from concentrated sources. There are also many methods that attempt to capture carbon dioxide from air or even the sea. Process intensification is a technique that reduces operating and capital costs by combining chemical reactions and separation operations, thus significantly increasing the efficiency of the process.

The goal of this Special Issue is to present novel carbon dioxide sequestration technologies that are technically feasible, cost-effective, and environmental friendly; the scope includes, new technologies and significant improvements on existent processes. Articles discussing concentrated sources and direct carbon capture technologies are welcomed, particularly process intensification processes with the potential to reduce capital and operating costs.

Prof. Dr. Jorge Gabitto
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. Energies is an international peer-reviewed open access semimonthly 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 2600 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 sequestration
  • novel technologies
  • energy savings
  • concentrated sources
  • direct capture
  • process intensification

Published Papers (3 papers)

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Research

22 pages, 3211 KiB  
Article
Comparison of Long-Term Bioenergy with Carbon Capture and Storage to Reference Power Generation Technologies Using CO2 Avoidance Cost in the U.S.
by Abishek Kasturi, Sotira Yiacoumi, Matthew Langholtz, Joanna McFarlane, Ingrid Busch, Michael Hilliard and Costas Tsouris
Energies 2021, 14(21), 7026; https://doi.org/10.3390/en14217026 - 27 Oct 2021
Cited by 3 | Viewed by 1838
Abstract
Bioenergy with carbon capture and storage (BECCS) can sequester atmospheric CO2, while producing electricity. The CO2 avoidance cost (CAC) is used to calculate the marginal cost of avoided CO2 emissions for BECCS as compared to other established energy technologies. [...] Read more.
Bioenergy with carbon capture and storage (BECCS) can sequester atmospheric CO2, while producing electricity. The CO2 avoidance cost (CAC) is used to calculate the marginal cost of avoided CO2 emissions for BECCS as compared to other established energy technologies. A comparative analysis using four different reference-case power plants for CAC calculations is performed here to evaluate the CO2 avoidance cost of BECCS implementation. Results from this work demonstrate that BECCS can generate electricity at costs competitive with other neutral emissions technologies, while simultaneously removing CO2 from the atmosphere. Approximately 73% of current coal power plants are approaching retirement by the year 2035 in the U.S. After considering CO2 sequestered from the atmosphere and coal power plant CO2 emissions displaced by BECCS, CO2 emissions can be reduced by 1.4 billion tonnes per year in the U.S. alone at a cost of $88 to $116 per tonne of CO2 removed from the atmosphere, for 10% to 90% of available biomass used, respectively. CAC calculations in this paper indicate that BECCS can help the U.S. and other countries transition to a decarbonized electricity grid, as simulations presented in this paper predict that BECCS power plants operate at lower CACs than coal plants with CCS. Full article
(This article belongs to the Special Issue Novel Technologies for Carbon Dioxide Sequestration)
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15 pages, 1536 KiB  
Article
A Process Intensification Approach for CO2 Absorption Using Amino Acid Solutions and a Guanidine Compound
by Abishek Kasturi, Jorge F. Gabitto, Radu Custelcean and Costas Tsouris
Energies 2021, 14(18), 5821; https://doi.org/10.3390/en14185821 - 14 Sep 2021
Cited by 9 | Viewed by 2014
Abstract
Environmentally friendly amino-acid salt solutions are used for the absorption of carbon dioxide from concentrated flue-gas streams via chemical absorption. Process intensification reduces operating and capital costs by combining chemical reactions and separation operations. Here, we present a new process-intensification approach that combines [...] Read more.
Environmentally friendly amino-acid salt solutions are used for the absorption of carbon dioxide from concentrated flue-gas streams via chemical absorption. Process intensification reduces operating and capital costs by combining chemical reactions and separation operations. Here, we present a new process-intensification approach that combines the CO2 capture and the amino-acid regeneration steps into a single process carried out in a slurry three-phase reactor. The absorbed CO2 precipitates as a solid carbonated guanidine compound. The cycle is completed by separation of the solid precipitate to strip the CO2 and regenerate the guanidine compound, while the liquid solution is recycled to the slurry reactor. The process was studied by modifying a model developed by the authors for a gas-liquid bubble column without the presence of the guanidine compound. The guanidine precipitation reaction was accounted for using kinetic parameters calculated by the authors in another study. The proposed model was implemented by modifying an existing computer code used for the simulation of gas-liquid bubble columns. The calculated results showed that the proposed cycle can significantly reduce energy, equipment, and operating costs and can make an important contribution to developing a competitive cost-effective large-scale process for CO2 capture. Full article
(This article belongs to the Special Issue Novel Technologies for Carbon Dioxide Sequestration)
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18 pages, 9627 KiB  
Article
A Combined Chemical-Electrochemical Process to Capture CO2 and Produce Hydrogen and Electricity
by Nabila Shamim, Shuza Binzaid, Jorge Federico Gabitto and John Okyere Attia
Energies 2021, 14(18), 5807; https://doi.org/10.3390/en14185807 - 14 Sep 2021
Cited by 2 | Viewed by 1887
Abstract
Several carbon sequestration technologies have been proposed to utilize carbon dioxide (CO2) to produce energy and chemical compounds. However, feasible technologies have not been adopted due to the low efficiency conversion rate and high-energy requirements. Process intensification increases the process productivity [...] Read more.
Several carbon sequestration technologies have been proposed to utilize carbon dioxide (CO2) to produce energy and chemical compounds. However, feasible technologies have not been adopted due to the low efficiency conversion rate and high-energy requirements. Process intensification increases the process productivity and efficiency by combining chemical reactions and separation operations. In this work, we present a model of a chemical-electrochemical cyclical process that can capture carbon dioxide as a bicarbonate salt. The proposed process also produces hydrogen and electrical energy. Carbon capture is enhanced by the reaction at the cathode that displaces the equilibrium into bicarbonate production. Literature data show that the cyclic process can produce stable operation for long times by preserving ionic balance using a suitable ionic membrane that regulates ionic flows between the two half-cells. Numerical simulations have validated the proof of concept. The proposed process could serve as a novel CO2 sequestration technology while producing electrical energy and hydrogen. Full article
(This article belongs to the Special Issue Novel Technologies for Carbon Dioxide Sequestration)
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