Advances of Materials and Processes in CO2 Capture and Utilization

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

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 4342

Special Issue Editor

Department of Chemical Engineering, Changwon National University, Changwon 641773, South Korea
Interests: MOF; carbon dioxide; adsorption; separation; hydrogen storage

Special Issue Information

Dear Colleagues,

Air quality is significantly affected by atmospheric pollutants present in daily anthropic activities, to which the supply and use of fossil fuels contribute approximately 80% of the emissions of greenhouse gases such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). Carbon neutrality has become a worldwide concern of highest priority. Recent problems such as the COVID-19 pandemic, flooding and wildfire are caused by the global warming issue which is mainly attributed to CO2 emission from fossil fuel combustion and industrial processes. There have been intensive research efforts on materials and processes to diminish the temperature rise in the atmosphere by global warming. Nonetheless, the solutions for achieving the carbon neutrality are still limited. CO2 capture and storage (CCS) using solid porous adsorbent (metal organic framework, covalent organic framework, zeolite, activated carbon, etc.), liquid amine-based absorbent, and hybrid polymeric membranes with amine functionalization, porous adsorbent impregnation, etc. are important techniques that can be used to reduce CO2 emission and minimize its negative impacts on climate changes. Furthermore, the advances of CO2 utilization technology facilitate carbon neutralization, which includes the conversion of CO2 to energy sources, polymers, and hydrocarbon intermediates.

Dr. Sangil Han
Guest Editor

Manuscript Submission Information

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Keywords

  • atmospheric pollutants
  • CO2 emission
  • carbon neutrality
  • CO2 capture and storage (CCS)
  • solid porous adsorbent
  • metal organic framework
  • covalent organic framework
  • membrane
  • catalyst
  • CO2 utilization

Published Papers (2 papers)

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Research

16 pages, 2799 KiB  
Article
Study of Absorbing CO2 from Emissions Using a Spray Tower
by Zhongcheng Wang, Xiaoyu Liu and Ke Li
Atmosphere 2022, 13(8), 1315; https://0-doi-org.brum.beds.ac.uk/10.3390/atmos13081315 - 18 Aug 2022
Cited by 2 | Viewed by 1795
Abstract
In order to reduce the environmental impact caused by CO2 emissions from ships and achieve the goal of green shipping, a spray tower using NaOH solution for the absorption of CO2 has been established in this paper. Using the characteristics of [...] Read more.
In order to reduce the environmental impact caused by CO2 emissions from ships and achieve the goal of green shipping, a spray tower using NaOH solution for the absorption of CO2 has been established in this paper. Using the characteristics of a 6135G128ZCa marine diesel engine, the CO2 absorption system was designed and mathematical models of CO2 absorption efficiency were developed. The effects of the variation in engine exhaust gas temperature, the concentration of NaOH solution, the exhaust gas velocity, different load conditions, and different nozzle types on the absorption efficiency of CO2 were thoroughly investigated experimentally. Moreover, the mechanism of CO2 absorption was analyzed. The developed model was verified by comparing the test results with the simulation results. The results of the study proved that using NaOH solution to absorb CO2 from ship exhausts could reduce the level of CO2 emissions from ships by more than 20%, which indicates that this technology could be used in the future to reduce the level of CO2 emissions from ships. Full article
(This article belongs to the Special Issue Advances of Materials and Processes in CO2 Capture and Utilization)
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14 pages, 15148 KiB  
Article
Application of 3D Embedded Discrete Fracture Model for Simulating CO2-EOR and Geological Storage in Fractured Reservoirs
by Xulin Du, Linsong Cheng, Renyi Cao and Jinchong Zhou
Atmosphere 2022, 13(2), 229; https://0-doi-org.brum.beds.ac.uk/10.3390/atmos13020229 - 29 Jan 2022
Cited by 4 | Viewed by 2160
Abstract
For greenhouse gas control and environment protection, CO2 emission reduction has become a hot spot in global research. CO2 injection in developed oil reservoirs to enhance oil recovery is widely regarded as one of the most economical and promising measures for [...] Read more.
For greenhouse gas control and environment protection, CO2 emission reduction has become a hot spot in global research. CO2 injection in developed oil reservoirs to enhance oil recovery is widely regarded as one of the most economical and promising measures for reducing anthropogenic CO2 emissions into the atmosphere. In this paper, a three-dimensional embedded discrete fracture model is proposed and applied to simulate CO2 flooding and geological storage processes in hydraulically fractured reservoirs. The gas injection is simplified as a two-phase two-component mathematical model with the varying pressure-related fluid physical properties, and its accuracy is verified by commercial software tNavigator®. The advantage of this model is that it can deal with the complex geological conditions of three-dimensional arbitrary-inclined fracture networks and accurately assess the effects of CO2-EOR and geological sequestration in real reservoirs. Two application cases of CO2 huff-and-puff with a single well and inter-fracture asynchronous injection and production are demonstrated and explained in detail. The optimized technological parameters and CO2 saturation distribution can provide key technical parameters for field operations. Full article
(This article belongs to the Special Issue Advances of Materials and Processes in CO2 Capture and Utilization)
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