Energy efficient catalytic CO2 desorption: mechanism, technological progress and perspective

Li, Ting; Yu, Qian; Barzagli, Francesco; Che, Mingrui; Zhang, Zhien; Zhang, Rui

doi:10.1016/j.ccst.2023.100099

Cited by 32 publications

(16 citation statements)

References 139 publications

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“…The CO 2 absorption and desorption process can be described according to the amphiphilic ion mechanism proposed by Caplow et al (Caplow, 1968). Firstly the absorption process of tertiary amines produces amphoteric ions when reacting with CO 2 , and subsequently, these amphoteric ions decompose to form carbamates and protonated amines; according to this mechanism, the regeneration process can be carried out in two main steps: the decomposition of carbamates (MEACOO − ) and the deprotonation of protonated amines (MEAH + ) (Afari et al, 2018;Li et al, 2023).…”

Section: Solid Acid Catalystmentioning

confidence: 99%

A review of CO2 catalytic regeneration research based on MEA solution

Yang,

Shen,

Yang

et al. 2023

Front. Energy Res.

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In recent years, the rapid increase of CO2 emission has caused severe environmental issues. The environmental concern has made how to reduce the carbon emissions become a hot topic. Many scholars and research teams believe that the organic amine chemical absorption technology is the most favored and promising carbon capture technology due to its highly CO2 removal effectiveness. However, it is not applied wildly in industrial environment since the desorption process energy consumption is too much, over 4 GJ/t CO2. Many researchers report that catalysts can help to reduce the desorption energy. And it is generally assumed that four key properties of solid acid catalysts determined the performance of solid acid catalysts in the process of CO2 desorption: the total number of acid sites; specific surface area; the ratio of Brønsted acid sites to Lewis acid sites; the amount of Brønsted acid sites. Therefore, this paper reviews the recent research on the effect of different catalysts on the energy consumption of CO2 desorption and the progress of research on improving catalyst performance. Also, it provides views on the possible problems in practical industrial applications.

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Section: Solid Acid Catalystmentioning

confidence: 99%

A review of CO2 catalytic regeneration research based on MEA solution

Yang,

Shen,

Yang

et al. 2023

Front. Energy Res.

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“…This meant that the inlet CO 2 concentration in the gas stream matched the outlet concentration, signifying complete saturation of the amine blend solution with CO 2 . The equilibrium CO 2 loading (mol CO 2 /mol amine) was determined using the Chittick apparatus [29]. In this experiment 1 ml sample of the CO 2loaded solution was extracted and titrated using a 1 M HCl stock solution.…”

Section: Co 2 Adsorptionmentioning

confidence: 99%

ZIF-8-incorporated Cellulose Air Filter for Carbon Dioxide Capture

Singh

Vedrtnam

et al. 2023

Preprint

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ZIF-8 (zeolitic imidazolate framework-8) has emerged as a highly promising material for CO2 capture due to its outstanding adsorption capacity and selectivity. In the present study, ZIF-8 and a ZIF-8-based cellulose air filter (ZCAF) were synthesized using a rapid synthesis route and the kraft pulping method, respectively. The synthesized ZIF-8 and ZCAF samples were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The SEM analysis revealed a rhombic dodecahedron morphology characterized by rough and porous features, while energy-dispersive X-ray (EDX) analysis confirmed the presence of constituent elements. Furthermore, XRD analyses demonstrated that all observed peaks and bands aligned with the crystalline structure present in the prepared samples. The particle size of the synthesized ZIF-8 samples varied based on the synthesis parameters, measuring approximately 99.46 nm, 101.9 nm, and 105.7 nm. To develop a ZIF-8-based air filter for CO2 capture, the ZIF-8 crystals were incorporated into a filter medium. The resulting ZIF-8-based air filter demonstrated significant improvements in CO2 loading compared to the standard MEA (monoethanolamine) reference. The calculated percentage increase in CO2 loading was approximately 41% for ZIF-8 (ZS3) and 22% for ZCAF (ZCAF3) samples respectively, relative to the MEA reference.

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“…[24] Studies using triblend solvents showed superior energy efficiency, especially with low heat duties and high desorption rates (DR), proving that these solvents are applicable. [25,26] Triblend amine solvents of primary, secondary, and tertiary amines demonstrated synergetic effects, with triblend amine blends operating more efficiently than the solvent systems commonly used in industry. [27] Solvent optimization, especially trisolvent amine blend optimization, has gained great importance for improving the energy efficiency of the CO 2 capture process.…”

Section: Introductionmentioning

confidence: 99%

Response Surface Optimization of Nonaqueous Hexanol‐Based Trisolvent Amine Blends for Energy‐Efficient CO₂ Desorption

Hugul,

Ulus,

Yuksel Orhan

et al. 2024

Energy Tech

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The CO2 absorption–desorption performances of nonaqueous trisolvent blended amines, monoethanolamine (MEA), 2‐amino‐2‐methyl‐1‐propanol (AMP), methyl diethanol amine (MDEA), 1‐dimethyl amino‐2‐propanol (1DMA2P), diethyl ethanol amine (DEEA), and piperazine (PZ), are investigated in terms of desorption parameters. Two trisolvent amine combinations, primary amine (MEA)/sterically hindered amine (AMP) and tertiary amine (MDEA/1DMA2P/DEEA)‐polyamine (PZ), are prepared at 5 m total amine concentrations with different molarities. Response surface methodology based on a central composite design is used to obtain the optimal condition. This study aims to determine the molarity ratios of solvent systems and investigate their effects on objective functions: heat duty, desorption rate, and desorption factor. Surface analysis suggests optimum conditions as 3 m MEA–1.375 m MDEA–0.625 m PZ for the lowest energy consumption. The experimental results of the proposed system are compared with the 5 m MEA solution. The extensive energy penalty of the CO2 desorption of amine absorbents is reduced with the newly developed solution.

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Energy efficient catalytic CO2 desorption: mechanism, technological progress and perspective

Cited by 32 publications

References 139 publications

A review of CO2 catalytic regeneration research based on MEA solution

A review of CO2 catalytic regeneration research based on MEA solution

ZIF-8-incorporated Cellulose Air Filter for Carbon Dioxide Capture

Response Surface Optimization of Nonaqueous Hexanol‐Based Trisolvent Amine Blends for Energy‐Efficient CO₂ Desorption

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Energy efficient catalytic CO2 desorption: mechanism, technological progress and perspective

Cited by 32 publications

References 139 publications

A review of CO2 catalytic regeneration research based on MEA solution

A review of CO2 catalytic regeneration research based on MEA solution

ZIF-8-incorporated Cellulose Air Filter for Carbon Dioxide Capture

Response Surface Optimization of Nonaqueous Hexanol‐Based Trisolvent Amine Blends for Energy‐Efficient CO2 Desorption

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Response Surface Optimization of Nonaqueous Hexanol‐Based Trisolvent Amine Blends for Energy‐Efficient CO₂ Desorption