Biphasic solvent for CO2 capture: Amine property-performance and heat duty relationship

Shen, Yao; Jiang, Chenkai; Zhang, Shihan; Chen, Jun; Wang, Lidong; Chen, Jianmeng

doi:10.1016/j.apenergy.2018.09.005

Cited by 120 publications

(54 citation statements)

References 50 publications

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“…Carbon capture and storage (CCS) is the most promising carbon abatement technology (Ghosh and Ramaprabhu 2017;Zhang and Lu 2017), and chemical absorption, especially alkanolamine aqueous solutions, has been widely applied to separate CO 2 from industrial flue gas (Akachuku et al 2019; Barzagli et al 2016;Behrens et al 2019). The main issue related to the deployment of absorption-based technology for capturing CO 2 is the intensive energy penalty (Shen et al 2018). For instance, the monoethanolamine (MEA)-based CO 2 absorption process augments electricity costs by approximately 80% (Isa et al 2018;Papadopoulos et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Novel biphasic amino-functionalized ionic liquid solvent for CO2 capture: kinetics and regeneration heat duty

Huang

Zhou

et al. 2020

Environ Sci Pollut Res

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Amino-functionalized ionic liquid biphasic solvents present excellent absorption capacity, regeneration ability, and energy consumption savings, which make them a possible candidate for CO 2 capture. The kinetics and regeneration heat duty of the [TETAH][Lys]-ethanol-water system capturing CO 2 were investigated in this work. The mass transfer and kinetic parameters, including the overall reaction rate constant (k ov), the reaction rate constant (k 2), and the enhancement factor (E), were assessed at diverse concentrations and temperatures. At 303.15 K, the k 2 of CO 2 capture into the [TETAH][Lys]-ethanol-water solution was 58,907.30 m 3 kmol −1 s −1. The Arrhenius equation was introduced to evaluate the relations between k 2 and the reaction temperature, which can be presented as k 2; TETAH ½ Lys ½-ethanol-water ¼ 1:9941 Â 10 15 exp − 7388:1 T À Á The regeneration heat duty of the novel biphasic solvent was 35.5 and 62.39% lower than those of [TETAH][Lys]-water and the benchmark monoethanolamine solution, respectively. An efficient absorption performance and lower energy requirement indicate the great potential for this application.

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Section: Introductionmentioning

confidence: 99%

Novel biphasic amino-functionalized ionic liquid solvent for CO2 capture: kinetics and regeneration heat duty

Huang

Zhou

et al. 2020

Environ Sci Pollut Res

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“…Table 1 summarizes the energy performance of three kinds of new amine-based solvents. [29,31] A blend of amines solvents integrates the properties and advantages of various amines, such as a classic combination of primary amines (e.g., MEA) or secondary amines (e.g., DEA) mixed with tertiary amines (e.g., MDEA) [32,33]. The performance of this kind of solvent, which combines the high reaction rate of primary or secondary amines with the high absorption capacity and lower absorption heat of tertiary amines, has been tested at the pilot scale or even higher scales for many years [34,35].…”

Section: Introductionmentioning

confidence: 99%

“…Liu et al [30] developed a novel phase change solvent, DEEA (50 wt%)-AEEA (25 wt%), with a high CO 2 cycle capacity (0.64 mol CO 2 /mol) and a regeneration energy consumption as low as 2.58 GJ/t, which is even cheaper. Shen et al [29] investigated the 18 kings of amines, which were used as the main components of the phase change solvent. The result revealed that the tertiary amine's alkalinity had a closed relation with the absorption ability, and the lowest heat duty (TMPDA + TETA) was as low as 1.83 GJ/t in some cases.…”

Section: Introductionmentioning

confidence: 99%

Application of the Thermodynamic Cycle to Assess the Energy Efficiency of Amine-Based Absorption of Carbon Capture

Deng

Zhao

et al. 2019

Energies

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The thermodynamic cycle, as a significant tool derived from equilibrium, could provide a reasonable and rapid energy profile of complicated energy systems. Such a function could strongly promote an in-depth and direct understanding of the energy conversion mechanism of cutting-edge industrial systems, e.g., carbon capture system (CCS) However, such applications of thermodynamics theory have not been widely accepted in the carbon capture sector, which may be one of the reasons why intensive energy consumption still obstructs large-scale commercialization of CCS. In this paper, a kind of thermodynamic cycle was developed as a tool to estimate the lowest regeneration heat (Qre) of a benchmark solvent (MEA) under typical conditions. Moreover, COPCO2, a new assessment indicator, was proposed firstly for energy-efficiency performance analysis of such a kind of CCS system. In addition to regeneration heat and second-law efficiency (η2nd), the developed COPCO2 was also integrated into the existing performance analysis framework, to assess the energy efficiency of an amine-based absorption system. Through variable parameter analysis, the higher CO2 concentration of the flue gas, the higher COPCO2, up to 2.80 in 16 vt% and the Qre was 2.82 GJ/t, when Rdes = 1 and ΔTheat-ex = 10 K. The η2nd was no more than 30% and decreased with the rise of the desorption temperature, which indicates the great potential of improvements of the energy efficiency.

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“…Recently, numerous studies have been carried out actively on CO 2 capture from their different emission sources. Due to the Kyoto Protocol, this matter has been the focus of attention worldwide [1][2][3][4]. The post-combustion solvent based process is one of the most developed know-how for CO 2 mitigation [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Detailed performance model of carbon dioxide absorption utilizing titanium dioxide nanoparticles in a wetted wall column

Rashidi

Sohrabi

2019

Env Prog and Sustain Energy

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Physical absorption of carbon dioxide was investigated in a wetted wall column (WWC) using a nanofluid containing titanium dioxide. Central composite response surface design (CCD) has been applied to give useful information about the main and interaction effects of the operational parameters. A quadratic mathematical model has been derived to clearly give a proper model for obtained experimental observations. The model adequacy has been analyzed by the use of analysis of variance (ANOVA), R‐squared coefficients, and lack of fit tests. The predicted values were found to be in good agreement with the general trend of experimental results. The interactive effects of the three effective absorption variables, namely temperature, liquid flow rate, and nanofluid concentration have been evaluated at five levels on the liquid mass transfer coefficient. Measurements of liquid‐side mass transfer coefficient elucidated that the absorption temperature of 25°C, the nanofluid flow rate of 299.88 mL/min, and the nanofluid concentration of 1.0%w, considerably enhances the absorption of carbon dioxide over twice. © 2019 American Institute of Chemical Engineers Environ Prog, 38: e13211, 2019

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Biphasic solvent for CO2 capture: Amine property-performance and heat duty relationship

Cited by 120 publications

References 50 publications

Novel biphasic amino-functionalized ionic liquid solvent for CO2 capture: kinetics and regeneration heat duty

Novel biphasic amino-functionalized ionic liquid solvent for CO2 capture: kinetics and regeneration heat duty

Application of the Thermodynamic Cycle to Assess the Energy Efficiency of Amine-Based Absorption of Carbon Capture

Detailed performance model of carbon dioxide absorption utilizing titanium dioxide nanoparticles in a wetted wall column

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