Exergy and economic analysis of the trade-off for design of post-combustion CO2 capture plant by chemical absorption with MEA

Julio, Alisson Aparecido Vitoriano; Castro-Amoedo, Rafael; Maréchal, François; González, Aníbal; Palácio, José Carlos Escobar

doi:10.1016/j.energy.2023.128004

Cited by 16 publications

(2 citation statements)

References 48 publications

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“…Among them, the chemical absorption method employs specific chemical solutions to react with the target gas, facilitating its separation from the gas. However, the requirement for a large amount of chemical reagents may cause secondary pollution [14][15][16]. Moreover, the principle of physical absorption lies in utilizing the difference in solubility between different gases in a specific liquid, which was conducted to achieve selective capture of gaseous pollutants.…”

Section: Introductionmentioning

confidence: 99%

Effect of Physico-Chemical Properties Induced by N, P Co-Doped Biomass Porous Carbon on Nitrous Oxide Adsorption Performance

Gong,

Liu,

Mou

et al. 2024

Sustainability

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The adsorption and enrichment of greenhouse gases on biomass porous carbon is a promising approach. Herein, a simple type of nitrogen and phosphorus co-doped biomass porous carbon (NPPC), which was derived from fast-growing eucalyptus bark, was reported via one-step method of carbonization and activation, and the nitrous oxide (N2O) adsorption performance and the adsorption mechanism of the NPPCs were also investigated. The results showed that NPPC-800-2 demonstrated a high specific surface area (1038.48 m2∙g−1), abundant micropores (0.31 cm3∙g−1), and enriched content of N and P (4.17 wt.% and 0.62 wt.%), which also exhibited a high N2O adsorption capacity of 0.839 mmol∙g−1. Moreover, the addition of N enhanced the surface polarity of carbon, thereby altering its pore structure. And P doping induced changes in the structural orientation of carbon, resulting in an increased presence of N-P functional groups. This finding reveals that the eucalyptus bark-based N and P co-doped porous carbon shows great potential for wide applications in N2O capture and provides effective guidance for the design and development of waste biomass adsorbent.

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Section: Introductionmentioning

confidence: 99%

Effect of Physico-Chemical Properties Induced by N, P Co-Doped Biomass Porous Carbon on Nitrous Oxide Adsorption Performance

Gong,

Liu,

Mou

et al. 2024

Sustainability

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“…However, obstacles exist in the deployment of post-combustion capture technology in cement production owing to huge exhaust gas volumes, low pressure, low carbon dioxide concentrations, and high pollutant content. Currently, the most established 2 of 19 post-combustion capture systems include physical absorption and chemical absorption, both confronting challenges linked to costly capture costs [11]. Calcium looping is a new CO 2 capture technology that uses solid adsorbents to react calcium oxide with CO 2 to produce calcium carbonate, and then releases CO 2 through the process of carbonate decomposition through calcination to achieve the purpose of capturing CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Coupled Oxygen-Enriched Combustion in Cement Industry CO2 Capture System: Process Modeling and Exergy Analysis

Wang,

Shi

2024

Processes

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The cement industry is regarded as one of the primary producers of world carbon emissions; hence, lowering its carbon emissions is vital for fostering the development of a low-carbon economy. Carbon capture, utilization, and storage (CCUS) technologies play significant roles in sectors dominated by fossil energy. This study aimed to address issues such as high exhaust gas volume, low CO2 concentration, high pollutant content, and difficulty in carbon capture during cement production by combining traditional cement production processes with cryogenic air separation technology and CO2 purification and compression technology. Aspen Plus® was used to create the production model in its entirety, and a sensitivity analysis was conducted on pertinent production parameters. The findings demonstrate that linking the oxygen-enriched combustion process with the cement manufacturing process may decrease the exhaust gas flow by 54.62%, raise the CO2 mass fraction to 94.83%, cut coal usage by 30%, and considerably enhance energy utilization efficiency. An exergy analysis showed that the exergy efficiency of the complete kiln system was risen by 17.56% compared to typical manufacturing procedures. However, the cryogenic air separation system had a relatively low exergy efficiency in the subsidiary subsystems, while the clinker cooling system and flue gas circulation system suffered significant exergy efficiency losses. The rotary kiln system, which is the main source of the exergy losses, also had low exergy efficiency in the traditional production process.

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Optimization of energy requirements and 4E analysis for an integrated post-combustion CO2 capture utilizing MEA solvent from a cement plant flue gas

Shamsi,

Naeiji,

Vaziri

et al. 2023

Environ Dev Sustain

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Exergy and economic analysis of the trade-off for design of post-combustion CO2 capture plant by chemical absorption with MEA

Cited by 16 publications

References 48 publications

Effect of Physico-Chemical Properties Induced by N, P Co-Doped Biomass Porous Carbon on Nitrous Oxide Adsorption Performance

Effect of Physico-Chemical Properties Induced by N, P Co-Doped Biomass Porous Carbon on Nitrous Oxide Adsorption Performance

Coupled Oxygen-Enriched Combustion in Cement Industry CO2 Capture System: Process Modeling and Exergy Analysis

Optimization of energy requirements and 4E analysis for an integrated post-combustion CO2 capture utilizing MEA solvent from a cement plant flue gas

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