Development of MEA-based CO 2 phase change absorbent

Zhang, Weidong; Jin, Xianhang; Tu, Weiwei; Ma, Qian; Mao, Menglin; Cui, Chunhua

doi:10.1016/j.apenergy.2017.03.050

Cited by 116 publications

(49 citation statements)

References 48 publications

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“…One successful strategy to reduce the intensive regeneration energy has been phase-change solvents. − These solvents are non-aqueous or aqueous-based solutions of amines, amino acids, or ionic liquids that can form two immiscible CO 2 -rich and CO 2 -lean phases after CO 2 absorption. As there is a significant difference in the concentration of absorbed CO 2 in the two phases (i.e., CO 2 -rich phase with a high concentration of CO 2 and CO 2 -lean with a comparatively low concentration of CO 2 ), the CO 2 -lean phase is typically recycled to the absorption column without any thermal degasification and the remaining CO 2 -rich phase is sent for solvent regeneration. , The regeneration of the CO 2 -rich phase ensures the process consumes significantly less energy compared to typical CO 2 absorption–desorption systems, due to the lower flow rate, higher CO 2 loading, and partial pressure of the CO 2 -rich stream. However, according to the recent literature review published by Lu et al, phase change solvents that can be split into liquid–liquid and liquid–solid phases suffer from a number of disadvantages .…”

Section: Introductionmentioning

confidence: 99%

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Alivand

Mazaheri

et al. 2020

ACS Sustainable Chem. Eng.

100

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CO 2 emissions from industrial processes and their adverse implications on the climate is of major concern. Carbon capture and storage (CCS), especially using chemical-absorption-based processes, has been regarded as one of the most realistic pathways to curtail global warming and climate change. However, the energy-intensive nature of CO 2 capture and therefore its expensive cost of operation has been regarded as the main barrier halting its widespread implementation among the portfolio of lowcarbon energy technologies currently available. Recently, catalytic solvent regeneration has drawn significant attention as a new class of technology for energy-efficient CO 2 capture with great potential for large-scale implementation. In this review, recent progress and developments associated with catalyst-aided solvent regeneration for lowtemperature energy-efficient CO 2 desorption is presented. A detailed discussion of heterogeneous acid−base catalyst is undertaken and the specific privileges, drawbacks, and challenges of each catalyst identified and commented upon. In keeping with the latest investigations, the promotion mechanism of catalytic CO 2 desorption and the role of Lewis acids, Brønsted acids, and basic active sites are scrutinized. The performance of solid acid−base catalysts in different primary and blended amine solutions associated with their physicochemical properties is also reviewed. Finally, the status of catalytic solvent regeneration for post-combustion CO 2 capture is comprehensively analyzed and a clear pathway for future research investigations is provided.

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Section: Introductionmentioning

confidence: 99%

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Alivand

Mazaheri

et al. 2020

ACS Sustainable Chem. Eng.

100

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“…35 As a result, MEA has a maximum loading of 0.5 mole CO 2 /mole MEA. 20 On the other hand, the glycerol-rich phase dissolves CO 2 at mole fractions of up to 0.13 over temperature ranges of 40 °C-200 °C and pressures of up to 350 bar. CO 2 solubility in glycerol is superior to that in water.…”

Section: Stripper Simulationmentioning

confidence: 99%

CO₂ Absorption/Desorption in Aqueous Single and Novel Hybrid Solvents of Glycerol and Monoethanolamine in a Pilot-Scale Packed Bed Column

Mirzaei

Shamiri²,

Aroua

2020

Energy Fuels

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CO 2 removal from mixed CO 2 -N 2 gas was investigated by using aqueous solutions of monoethanolamine (MEA) (10 wt%), glycerol (10 wt%), and a mixture of MEA (10 wt%)glycerol (10 wt%) in a pilot-scale packed column. Aspen Plus simulator was employed to simulate the CO 2 -MEA-glycerol process using a rate-based model. Then, the experimental data of pilot-scale columns were applied to validate the simulation results. The lowest and highest rich CO 2 loadings for the MEA solvent were measured in 3.65% and 13.9% mol CO 2 /mol MEA with 1.4 and 3.9 L/min gas flow rates, respectively. In comparison to CO 2 -MEA system, the lowest and highest rich CO 2 loadings for CO 2 -MEA-glycerol system increased by 42.2% and 14.8%, respectively under the same conditions. The values of CO 2 loadings predicted by the simulation were in concordance with the experimental values. Results suggested that the hybrid MEA-glycerol solution had better CO 2 absorption performance than the aqueous MEA solution.

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“…Because of the large amount of CO 2 generated in a CFPP, the main obstacle to its sustainable capture is the energy expenditure due to the regeneration of the solvent and the power expended in the compression of the CO 2 stream (Goto et al 2013 ). As previously mentioned, many alternative solvents have been considered, among which MEA is currently the most widely used (Zhang et al 2017 ). Despite the potential for reducing CO 2 emissions with a carbon capture process, a reduction in the net power output is inevitable with the use of these systems.…”

Section: Introductionmentioning

confidence: 99%

Thermal integration of different compression-train configurations for coal-fired power plant with carbon capture

Esquivel-Patiño

Nápoles‐Rivera

2021

Clean Techn Environ Policy

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Graphic abstract Different compression-train configurations in a coal-fired power plant with CO 2 capture were thermally integrated to reduce the energetic impact of the capture process and global warming potential for the life cycle of the power plant and the production of the absorbent. The thermal integration was performed using formal optimization techniques, with consideration given to all the available streams for the different compression-train configurations. The different compression-train configurations produced different temperature levels in the process streams and different heat exchanger networks, which included the power plant, compression train, and waste energy recovery technologies, such as organic Rankine cycles. The initial observation was that for the different configurations of the compression trains, the best result in terms of the net power output was 374.26 MW e , with a reduction of 84.3% in the global warming potential compared with a power plant without carbon capture. This result was obtained for an eight-stage train with integrally geared centrifugal compressors. Subsequently, with thermal integration, the configuration that included advanced supersonic shockwave compressors exhibited the best conditions for the heat transfer between hot and cold streams, achieving a reduction of 84.65% in the global warming potential and a net power output of 382.9 MW e .

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Development of MEA-based CO 2 phase change absorbent

Cited by 116 publications

References 48 publications

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

CO₂ Absorption/Desorption in Aqueous Single and Novel Hybrid Solvents of Glycerol and Monoethanolamine in a Pilot-Scale Packed Bed Column

Thermal integration of different compression-train configurations for coal-fired power plant with carbon capture

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Development of MEA-based CO 2 phase change absorbent

Cited by 116 publications

References 48 publications

Catalytic Solvent Regeneration for Energy-Efficient CO2 Capture

Catalytic Solvent Regeneration for Energy-Efficient CO2 Capture

CO2 Absorption/Desorption in Aqueous Single and Novel Hybrid Solvents of Glycerol and Monoethanolamine in a Pilot-Scale Packed Bed Column

Thermal integration of different compression-train configurations for coal-fired power plant with carbon capture

Contact Info

Product

Resources

About

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

CO₂ Absorption/Desorption in Aqueous Single and Novel Hybrid Solvents of Glycerol and Monoethanolamine in a Pilot-Scale Packed Bed Column