2-Amino-2-methyl-1-propanol based non-aqueous absorbent for energy-efficient and non-corrosive carbon dioxide capture

Lv, Bihong; Yang, Kexuan; Zhou, Xiaobin; Zhou, Zhen; Jing, Guohua

doi:10.1016/j.apenergy.2020.114703

Cited by 56 publications

(22 citation statements)

References 36 publications

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“…kinetically favored amine carbamates. Bihong et al 32 and Barbarossa et al 31 found that carbamates also form with amines in NMP solution and EG/ethanol mixtures, respectively. In both groups, the authors obtained lower solvent loss during the course of the CO 2 desorption step which, in combination with their non-corrosive behavior, makes the studied solutions promising candidates for the CO 2 capture.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In view of these considerations, using high-boiling solvents instead of water can be an option due to a synergy between lower solvent heat capacity and reduced solvent vaporization loss . Also, it was shown that the lower dielectric constant of nonaqueous solvents compared to that of water reduces stability of the formed CO 2 -retaining products bicarbonate and carbamate and thus facilitates the desorption process. , Recent publications on the high-boiling point solvents with regard to CO 2 capture include papers focusing on investigation of the amine solutions in glycols ,− and their mixtures with primary alcohols, ,, in glycol ethers, propylene carbonate, N -methyl formamide, N -methyl pyrrolidone (NMP), and many others. In their research paper, Barzagli and co-workers came to the conclusion that lower heat capacity and evaporation enthalpy of the studied organic solvents and lower stripping temperature in comparison to those of water and aqueous alkanolamines, respectively, should reduce the amine evaporation and degradation and equipment corrosion.…”

Section: Introductionmentioning

confidence: 99%

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Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

et al. 2022

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In the present paper, a systematic investigation of the influence of amine and salt concentration on the CO 2 absorption capacity (m CO 2 , moles of CO 2 absorbed by 1 kg of a solution) and amine efficiency (c CO 2 , moles of CO 2 absorbed by 1 mole of amine) of the ternary mixtures composed of monoethanolamine (MEA), ethylene glycol (EG), and choline chloride (ChCl) was carried out. We demonstrate that, in general, the presence of a fixed amount of ChCl in a mixed {MEA + EG} solvent cannot improve m CO 2 over an entire range of solvent composition and weakly decreases c CO 2 with the effect more pronounced for the mixtures containing greater amount of MEA. The influence of ChCl concentration on the above properties was analyzed for the mixtures with a fixed MEA/EG mole ratio but various ChCl concentrations. It was shown that a decrease in m CO 2 observed with an increase in ChCl, again, is rather caused by an overall decrease in MEA content in a mixture as its efficiency c CO 2 does not change when ChCl concentration increases. In addition, properties such as density (ρ) and viscosity (η) of the binary {MEA + EG} and ternary {MEA + EG + ChCl} mixtures were obtained within a wide range of temperatures for both neat and CO 2 -loaded samples. We show that regardless of the {MEA + EG} mixed solvent composition, the presence of ChCl increases both ρ and η. For CO 2loaded samples, both properties increase significantly with a greater contribution for the mixtures containing greater amount of MEA.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

et al. 2022

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“…1 Lv et al found that a nonaqueous solvent containing 2-amino-2-methyl-1-propanol (AMP), (2-(2-aminoethylamino)ethanol and N-methyl-2-pyrrolidone (NMP) achieved a low regernation energy (2.09 GJ•tCO 2 -1 ) which was approximately half that of aqueous MEA. 2 However, water-lean solvents are generally challenged by their high viscosity. [3][4][5][6] It was reported that water-lean solvents containing alcohol derivatives had high viscosity values, even up to ∼1300 mPa•S at 40 ˚C with CO 2 loading 7 which would significantly reduce the mass and heat transfer efficiency in the CO 2 capture process.…”

mentioning

confidence: 99%

Diamine based water‐lean CO₂ solvent with extra high cyclic capacity and low viscosity

Yang

Xia

et al. 2021

Greenhouse Gases

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The industrial application of emerging water-lean solvents to CO 2 capture from flue gas is challenged by their high viscosity. In this work, we report a novel water-lean CO 2 solvent which possesses lower viscosity and higher CO 2 cyclic capacity than other water-lean solvents reported in the literature. The new solvent consists of N, N-dimethyl-1, 2-ethanediamine (DMEDA), physical cosolvent N-methyl-2-pyrrolidone (NMP) and up to 15% water (named ENH). We evaluated the effect of the solvent composition on the viscosity, CO 2 cyclic capacity and regeneration energy of ENH and compared it with the reference monoethanolamine (MEA) based solvents. It was found that ENH containing 5% H 2 O (ENH-5%H 2 O) with a CO 2 loading of 0.767 mol CO 2 •mol amine -1 had a viscosity of 7.603 mPa•S at 40 ˚C, which was comparable with that of traditional blended amines. Excellent cyclic capacity performance was also observed, with ENH-5% H 2 O showing a 140% improvement compared to aqueous MEA. Regeneration energy of ENH-5% H 2 O was estimated to be 2.418 GJ•tCO 2 -1 which is 36% lower than the 30 wt. % aqueous MEA solvent.

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“…The nonaqueous absorbents comprising MEA/DEA-glycol ethers (2-methoxyethanol (2ME) and 2ethoxyethanol (2EE)) 13 and MEA-diethylene glycol monoethyl ether/N-methylformamide 14 were reported. Bihong et al 15 developed a novel nonaqueous AMP-AEEA-N-methylpyrrolidone (NMP) solution that possessed a high CO 2 capacity of 1.65 mol•kg −1 solution and a total heat duty of 2.09 GJ/t CO 2 , which was only about half that of the MEA solution. Wanderley et al 16 proposed that due to the very low dielectric constant of diluents and the difficulty of the stabilization of the intermediary reaction species, most ethers, esters, and ketones were limited to use for water-lean solvent formulations.…”

Section: Introductionmentioning

confidence: 99%

Effect of Solvents on the Phase Separation Behavior and CO₂ Capture Performance of MEA-Based Nonaqueous Absorbents

Jin¹,

Ren²,

Yang³

2022

Energy Fuels

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Nonaqueous absorbents for CO2 capture have attracted great attention in research institutes recently because of their many advantages, such as energy efficiency and noncorrosiveness. Novel nonaqueous single-phase and biphasic absorbents have been developed. In this work, to satisfy application requirements, the effects of solvents on nonaqueous absorbents’ phase separation behavior and CO2 solubility were clarified. The nonaqueous absorbents comprising MEA and 26 kinds of solvents were investigated. The phase separation behavior after CO2 absorption, CO2 solubility, and CO2 cyclic capacity of nonaqueous absorbents were studied. The solvent polarity parameter E T(30) and the dielectric constant of solvents mainly affected the phase separation behavior and CO2 solubility of nonaqueous absorbents, respectively. The nonaqueous absorbent comprising a solvent with an E T(30) value larger than 50 kcal/mol maintained a single phase after CO2 absorption. The CO2 solubility of nonaqueous absorbents had a good positive relation with the dielectric constant of solvents. Moreover, nonaqueous absorbents comprising ethylene glycol monoethyl ether exhibited the optimal CO2 cyclic capacity and heat of CO2 absorption. In comparison to 30% MEA/H2O, the CO2 cyclic capacity of the nonaqueous absorbent increased by 51.8%, and the heat of CO2 absorption decreased by 35.4%.

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2-Amino-2-methyl-1-propanol based non-aqueous absorbent for energy-efficient and non-corrosive carbon dioxide capture

Cited by 56 publications

References 36 publications

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

Diamine based water‐lean CO₂ solvent with extra high cyclic capacity and low viscosity

Effect of Solvents on the Phase Separation Behavior and CO₂ Capture Performance of MEA-Based Nonaqueous Absorbents

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2-Amino-2-methyl-1-propanol based non-aqueous absorbent for energy-efficient and non-corrosive carbon dioxide capture

Cited by 56 publications

References 36 publications

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO2 Absorption Capacity, Density, and Viscosity

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO2 Absorption Capacity, Density, and Viscosity

Diamine based water‐lean CO2 solvent with extra high cyclic capacity and low viscosity

Effect of Solvents on the Phase Separation Behavior and CO2 Capture Performance of MEA-Based Nonaqueous Absorbents

Contact Info

Product

Resources

About

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

Diamine based water‐lean CO₂ solvent with extra high cyclic capacity and low viscosity

Effect of Solvents on the Phase Separation Behavior and CO₂ Capture Performance of MEA-Based Nonaqueous Absorbents