Enhancing CO2 absorption for post-combustion carbon capture via zinc-based biomimetic catalysts in industrially relevant amine solutions

Widger, Leland R.; Sarma, Moushumi; Kelsey, Rachael A.; Risko, Chad; Lippert, Cameron A.; Parkin, Sean; Liu, Kunlei

doi:10.1016/j.ijggc.2019.04.002

Cited by 14 publications

(11 citation statements)

References 49 publications

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“…First, the initial structure of C7Z was obtained from the experimental crystal data, 29 given in the Supporting Information (SI).The initial structure of C7Z-reduced was obtained from that of C7Z by adding a hydrogen atom to the N atom and to the adjacent C atom. Both structures were optimized at the B3LYP level of theory.…”

Section: Computational Detailsmentioning

confidence: 99%

“…In this work, we r e f e r t o t h e c a t a l y s t s [ Z n I I ( P S A A M P ) C l 2 ] and [Zn II (PSA AMP H 2 )Cl 2 ] as C7Z and C7Z-reduced, respectively. 29 The two catalysts have very small structural differences; C7Z has a C−N bond which in C7Z-reduced has become a single bond with two additional H atoms added to the C and N atoms. This tiny structural change leads to a drastic difference in foaming behavior: C7Z-reduced foams much more compared to C7Z.…”

Section: Introductionmentioning

confidence: 99%

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Foaming Dependence on the Interface Affinities of Surfactant-like Molecules

Tiwari

Steckel

Sarma

et al. 2019

Ind. Eng. Chem. Res.

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We have explored the relationship between physical properties and foaming behavior of 30 wt % aqueous monoethanolamine (MEA) solutions with three different surfactant-like additives. The additives included one commercial surfactant, cetyltrimethylammonium bromide (CTAB), and two CO 2 capture catalysts that behave as weak surfactants. The physical properties of interest were the additives' affinity for the liquid−vapor interface and the viscosity, surface tension, and surface elasticity of the solutions. The physical properties were explored using molecular dynamics simulations as well as experiments. The additives' affinity for the liquid−vapor interface played a key role in the foaming behavior by affecting the interfacial properties (surface tension and surface elasticity) of the aqueous MEA solutions. The solution containing CTAB showed the largest surface tension depression and the largest surface elasticity and resulted in the largest amount of foaming. The two catalyst solutions had almost similar surface tensions but differed in their elasticity. The catalyst solution with higher surface elasticity showed more foaming due to higher foam stability.

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Section: Computational Detailsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Foaming Dependence on the Interface Affinities of Surfactant-like Molecules

Tiwari

Steckel

Sarma

et al. 2019

Ind. Eng. Chem. Res.

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“…2,14,15 However, the low solubility of CO 2 under normal pressure severely limits the rate of the enzymatic reactions. 16 Carbonic anhydrase (CA) that can greatly accelerate the hydration of CO 2 has been applied in the enhancement of CO 2 sequestration, in which it is proved competent to increase the CO 2 absorption rate of traditional amine sorbents 17 and is believed to be cost-effective and environmentally friendly. 18,19 In some cases, CA is also used to promote the enzymecatalyzed CO 2 conversion.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Carbonic anhydrase (CA) that can greatly accelerate the hydration of CO 2 has been applied in the enhancement of CO 2 sequestration, in which it is proved competent to increase the CO 2 absorption rate of traditional amine sorbents and is believed to be cost-effective and environmentally friendly. , In some cases, CA is also used to promote the enzyme-catalyzed CO 2 conversion. Addo et al added CA to a cascade of bioelectrocatalytic reduction of CO 2 to methanol, and an increase of 82% in the current was observed in the system with CA than without.…”

Section: Introductionmentioning

confidence: 99%

Dopamine/Polyethylenimine-Modified Silica for Enzyme Immobilization and Strengthening of Enzymatic CO₂ Conversion

Zhai

Wang

et al. 2020

ACS Sustainable Chem. Eng.

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Enzymatic conversion of CO 2 to high-value chemicals is a green route of resource reutilization, which is limited by low solubility of CO 2 in mild conditions. Here, silica microspheres were first modified by the co-deposition of polyethyleneimine (PEI) and dopamine and the resultant polydopamine (PDA)/PEI-SiO 2 was then used as the strengthening material of the enzymatic conversion of CO 2 to formate. The initial reaction rate increased from 13.4 to 27.2 times with the loading amount of PDA/PEI-SiO 2 increasing from 0.1 to 0.4 g. Following that, PDA/PEI-SiO 2 was used as the carrier for the immobilization of carbonic anhydrase (CA). As a result of synergism, the formate synthesis was accelerated up to 48.6 times with a low loading amount of 0.2 g of PDA/PEI-SiO 2 -CA. Although the promoting effect of PDA/PEI-SiO 2 retained only 56.1% after being used once, PDA/PEI-SiO 2 -CA retained 95.1% activity after 10 cycles of use. It was presumed that CA boosted the impact and reusability of PDA/PEI-SiO 2 by improving CO 2 desorption. This work is much significant in providing a simple and high-efficiency strategy for process intensification of enzymatic CO 2 conversion.

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“…(XU et al, 2019). Widger et al (2019) destacam que a rapidez para a implementação dos processos envolvendo soluções alcalinas de aminas se deve ao fato de já existirem diversos casos de aplicação, além do conhecimento de requerimentos regulatórios e os sistemas já existentes são atrativos para a indústria. A implementação em larga escala deste tipo de tecnologia eleva o custo total da eletricidade em cerca de 85% (66 USD/tCO2capt) considerando-se um custo em 20 anos (CIFERNO et al, 2009).…”

Section: Purificação Syngasunclassified

Análise exergética, econômica e ambiental da produção de amônia por meio da gaseificação de bagaço residual de cana-de-açúcar.

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Enhancing CO2 absorption for post-combustion carbon capture via zinc-based biomimetic catalysts in industrially relevant amine solutions

Cited by 14 publications

References 49 publications

Foaming Dependence on the Interface Affinities of Surfactant-like Molecules

Foaming Dependence on the Interface Affinities of Surfactant-like Molecules

Dopamine/Polyethylenimine-Modified Silica for Enzyme Immobilization and Strengthening of Enzymatic CO₂ Conversion

Análise exergética, econômica e ambiental da produção de amônia por meio da gaseificação de bagaço residual de cana-de-açúcar.

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Enhancing CO2 absorption for post-combustion carbon capture via zinc-based biomimetic catalysts in industrially relevant amine solutions

Cited by 14 publications

References 49 publications

Foaming Dependence on the Interface Affinities of Surfactant-like Molecules

Foaming Dependence on the Interface Affinities of Surfactant-like Molecules

Dopamine/Polyethylenimine-Modified Silica for Enzyme Immobilization and Strengthening of Enzymatic CO2 Conversion

Análise exergética, econômica e ambiental da produção de amônia por meio da gaseificação de bagaço residual de cana-de-açúcar.

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Dopamine/Polyethylenimine-Modified Silica for Enzyme Immobilization and Strengthening of Enzymatic CO₂ Conversion