Application of aqueous blends of AMP and piperazine to the low CO2 partial pressure capturing: New experimental and theoretical analysis

Hassankiadeh, Mojtaba Nabipoor; Jahangiri, Alireza

doi:10.1016/j.energy.2018.09.160

Cited by 21 publications

(4 citation statements)

References 30 publications

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“…However, the lower carbamate stability of EAE is a disadvantage for CO 2 desorption. Therefore, to reduce overall heat duty, we blended EAE with AMP, which is widely blended with various amines to enhance desorption performance [46][47][48][49][50][51][52][53][54]. The non-catalytic CO 2 absorption and desorption with MEA + EAE + AMP at 0.1-0.5+2+2 mol/L was published recently, revealing the potential of this new tri-solvent [25].…”

Section: Tri-solvent Concentration Range Referencementioning

confidence: 99%

Evaluating CO2 Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts

Zhang

Peng

et al. 2022

Catalysts

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The Paris Agreement and one of its goals, “carbon neutrality,” require intensive studies on CO2 absorption and desorption processes. When searching for ways of reducing the huge energy cost of CO2 desorption in the amine scrubbing process, the combination of blended amine with solid acid catalysts turned out to be a powerful solution in need of further investigation. In this study, the tri-solvent MEA (monoethanolamine) + EAE(2-(ethylamino)ethanol) + AMP(2-amino-2-methyl-1-propanol) was prepared at: 0.2 + 2 + 2, 0.5 + 2 + 2, 0.3 + 1.5 + 2.5 and 0.2 + 1 + 3 mol/L. The heterogeneous catalytic CO2 desorptions were tested with five commercial catalysts: blended γ-Al2O3/H-ZSM-5, H-beta, H-mordenite, HND-8 and HND-580. Desorption experiments were conducted via a recirculation process with direct heating at 363 K or using temperature programming method having a range of 303–363 K. Then, the average CO2 desorption rate, heat duty and desorption factors were studied. After comparison, the order of CO2 desorption performance was found to be HND-8 > HND-580 > H-mordenite > Hβ > blended γ-Al2O3/H-ZSM-5 > no catalyst. Among the other combinations, the 0.2 + 1 + 3 mol/L MEA + EAE + AMP with HND-8 had a minimized heat duty (HD) of 589.3 kJ/mol CO2 and the biggest desorption factor (DF) of 0.0277 * (10−3 mol CO2)3/L2 kJ min. This study provided a kind of tri-solvent with catalysts as an energy-efficient solution for CO2 absorption and desorption in industrial CO2 capture pilot plants.

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Section: Tri-solvent Concentration Range Referencementioning

confidence: 99%

Evaluating CO2 Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts

Zhang

Peng

et al. 2022

Catalysts

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“…fossil-fuel power plants. Further studies have been carried out to determine specifically novel solvents and blends that strengthened their performance under applications for CO2 capture in fossil-fuel power plants via CO2 chemical absorption [33,34]. In this sense, the most desirable solvent properties that can be suitable for CCS applications include: high CO2 loading, fast kinetics, thermal and oxidative stability, along with decrease in energy requirement for regeneration, volatility, viscosity, corrosivity, toxicity, chemical reactivity with impurities and cost [35,36].…”

Section: Amine Blendsmentioning

confidence: 99%

Current status of CO2 chemical absorption research applied to CCS: Towards full deployment at industrial scale

et al. 2020

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“…When added to a single amine solution, PZ acts as a rate accelerator to improve the limitations of a single amine solvent in terms of its reaction rate [28][29][30][31][32]. Presently, the published literature has reported on the performance of a blended PZ + AMP solution concerning aspects of CO 2 absorption tested in the range of 1.5 to 15 kPa, such as CO 2 solubility [33,34], kinetic reaction [35,36], simulation analysis [37], and mass transfer performance [38], as well as on the absorption and regeneration characteristics [39] of the blended solution. For example, Khan et al [39] investigated CO 2 removal in a range of 10 to 15 kPa from the exhaust gas from a boiler stack into a blended PZ + AMP solution.…”

Section: Introductionmentioning

confidence: 99%

CO2 Absorption from Biogas Using Piperazine-Promoted 2-Amino-2-methyl-1-propanol: Process Performance in a Packed Column

et al. 2022

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In this work, CO2 absorption from simulated biogas is investigated using different blends of a PZ + AMP solution in an absorption system at CO2 partial pressures ranging between 20 and 110 kPa. The collected data were presented as CO2 removal profiles along the packed column and were evaluated in terms of CO2 removal efficiency (%) and average overall volumetric mass transfer coefficient in the gas phase (KGav¯). An increased PZ concentration in the AMP solution was found to significantly increase the CO2 removal efficiency and KGav¯ values. It was observed that, when conducted at different CO2 partial pressures, gas and liquid flow rates, and chemical concentrations, the Lamine/GCO2 ratio strongly influenced the process behaviour in the packed column. Additionally, the optimal inlet liquid temperature was observed to be 35 ± 2 °C in this study.

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Application of aqueous blends of AMP and piperazine to the low CO2 partial pressure capturing: New experimental and theoretical analysis

Cited by 21 publications

References 30 publications

Evaluating CO2 Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts

Evaluating CO2 Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts

Current status of CO2 chemical absorption research applied to CCS: Towards full deployment at industrial scale

CO2 Absorption from Biogas Using Piperazine-Promoted 2-Amino-2-methyl-1-propanol: Process Performance in a Packed Column

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