Application of Catalysts in CO2 Capture, Production and Utilization, 2nd Edition

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".

Deadline for manuscript submissions: 30 April 2025 | Viewed by 1402

Special Issue Editor


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Guest Editor
School of Energy and Power Engineering, Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
Interests: CO2 catalytic valorization; CO2 catalytic utilization; CO2 catalytic conversion; CO2 absorption and desorption; CO2 capture
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Special Issue Information

Dear Colleagues,

This is the second edition of the successful Special Issue titled “Application of Catalysts in CO2 Capture, Production and Utilization”.

Carbon capture, utilization, and storage (CCUS) technology has drawn research attention since 2020. There have been intensive publications related to catalytic CO2 absorption, desorption, and conversion. The reaction mechanisms, structure–activity correlations, and catalysis have been the research focus for years. This Special Issue intends to publish manuscripts in the area of catalytic carbon capture, utilization, and storage. This Special Issue is focused on the following topics: heterogeneous catalytic CO2 absorption and desorption, oxy-combustion, catalytic CO2 conversion, catalytic mechanism, heterogeneous catalytic models, reaction kinetics, and related research in selective catalytic reduction (SCR) of NOX.

If you would like to submit papers for publication in this Special Issue or have any questions, please contact the in-house Editor, Mr. Ives Liu (ives.liu@mdpi.com).

Dr. Huancong Shi
Guest Editor

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Keywords

  • catalytic CO2 absorption
  • catalytic amine regeneration
  • catalytic CO2 conversion
  • catalytic mechanism
  • heterogeneous catalytic models
  • reaction kinetics

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Published Papers (1 paper)

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Research

23 pages, 7429 KiB  
Article
Catalytic CO2 Desorption from MEA Solution of Al-FeOOH Composite Catalysts’ Desorption Performance, Structure–Activity Relationship, and New Mechanism
by Huancong Shi, Junge Lv, Yongcheng Feng, Haoran Zhang, Zhibo Xiong, Shijian Lu, Jing Jin and Paitoon Tontiwachwuthikul
Catalysts 2024, 14(11), 779; https://doi.org/10.3390/catal14110779 - 4 Nov 2024
Cited by 1 | Viewed by 1222
Abstract
In order to reduce the massive heat duty of amine-based CO2 capture technology, an AlOOH/FeOOH composite catalyst (AF-M/N) was synthesized to speed up the CO2 desorption rates and reduce the heat duty of an aqueous MEA solution. The catalysis of AF-M/M [...] Read more.
In order to reduce the massive heat duty of amine-based CO2 capture technology, an AlOOH/FeOOH composite catalyst (AF-M/N) was synthesized to speed up the CO2 desorption rates and reduce the heat duty of an aqueous MEA solution. The catalysis of AF-M/M from 1/9 to 9/1 was investigated comprehensively, with characterization of the catalytic desorption with heat duty and desorption factors. Results indicated the special composite catalyst (AF-1/9) possessed optimized catalysis with a relative heat duty of 78.7% and a desorption factor of 0.0037 × 10−3 (mol CO2/L2 kJ min) and relative desorption factor of 194.7%. The structure–activity correlations indicated that the mesopore surface area (MSA), which reached 329 m2/g, and Brϕnsted/Lewis acid ratio (B/L ratio) of 0.11 were the most important factors for enhancing catalysis. Furthermore, molecular simulations were conducted for the catalytic carbamate breakdown mechanism, focusing on the “isomerization” of “carbamate acid” vs. “Zwitterion” as the key step. From the DFT study, the isomerization was most likely to proceed with H2O as catalyst via intermolecular proton transfer instead of intramolecular proton transfer, with an activation energy Ea of 85.9 kJ/mol. With the aid of AlOOH the isomerization was further facilitated due to stabilized Zwitterion, and the Ea decreased to 69.2 kJ/mol. The results not only synthesized a new heterogeneous catalyst but also revealed the map of “isomerization” on a molecular level. Such a discovery indicates that water-assisted proton transfer is advantageous for catalytic carbamate breakdown. Full article
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