High CO2 adsorption on improved ZSM-5 zeolite porous structure modified with ethylenediamine and desorption characteristics with microwave

Kalantarifard, Amin; GhavamiNejad, Amin; Yang, Go Su

doi:10.1007/s10163-015-0436-1

Cited by 17 publications

(7 citation statements)

References 33 publications

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“…While microwave regeneration has been used for solid CO 2 adsorbents, − there are only few studies investigating the application of microwave irradiation in the regeneration of aqueous amine solutions for CO 2 capture. McGurk et al demonstrated the feasibility of regenerating spent MEA aqueous solutions with microwave irradiation.…”

Section: Introductionmentioning

confidence: 99%

Screening and Performance Evaluation of Triethylenetetramine Nonaqueous Solutions for CO₂ Capture with Microwave Regeneration

Gao

et al. 2020

Energy Fuels

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While CO2 capture with nonaqueous solutions is a promising approach, regeneration of the solutions often requires high energy consumption. This energy consumption can be potentially reduced by microwave regeneration, the performance of which is strongly affected by the selection of solvent. Therefore, we investigated the characteristics of microwave regeneration for nine triethylenetetramine (TETA) solutions. The results show that the heating rate of a solution in the microwave was primarily affected by its viscosity, dielectric constant, and heat capacity. The desorption energy consumption of CO2-loaded solutions had a strong linear correlation with the dielectric constant of the solvents over a certain solvent viscosity range (1.4–88.8 mPa·s, 20 °C). A comparison of microwave heating and conductive heating shows that the former performs better when considering regeneration temperature, CO2 recovery, and energy requirement. Under the condition of 800 W, the energy consumption using microwave regeneration for 30 wt % TETA/BDO and TETA/PEG200 solutions decreased by 69% and 76%, while CO2 recovery increased by 2.6 and 2.7 times, respectively, compared to a 30 wt % monoethanolamine aqueous solution regenerated by conductive heating. Therefore, TETA with microwave regeneration represents a promising approach for CO2 capture and recovery.

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Section: Introductionmentioning

confidence: 99%

Screening and Performance Evaluation of Triethylenetetramine Nonaqueous Solutions for CO₂ Capture with Microwave Regeneration

Gao

et al. 2020

Energy Fuels

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“…It was attributed to the higher adsorption capacity of PEI 10,000 -silica under humid conditions, which was 30–40 mg g –1 higher than that under dry conditions. The mesoporous structure of PEI 10,000 -silica with 25 nm pore size, which was assembled by silica particles, was beneficial for the diffusion of CO 2 and avoided the obstruction of water vapor. − …”

Section: Resultsmentioning

confidence: 99%

Indoor CO₂ Control through Mesoporous Amine-Functionalized Silica Monoliths

Zhao

Zhou

Fan

et al. 2019

Ind. Eng. Chem. Res.

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Amine-functionalized adsorbents have attracted much attention in removing indoor CO2 to reduce the risk of human health. In the current work, polyethyleneimine (PEI)-modified silica monolith (PEI x -silica) was synthesized through a sol–gel method using PEI with molecular weights of 750,000, 25,000, and 10,000 as template agents. The N2 adsorption result revealed that the PEI x -silica monolith possesses a mesoporous structure with 25–45 nm pore size assembled by silica particles (60–80 nm), which was decreased with the decrease in PEI molecular weight. The adsorption capacities of PEI x -silica for reducing CO2 concentration below 0.1% from 0.5% were investigated. The results indicated that CO2 adsorption capacity of PEI x -silica increased as molecular weight of PEI decreased. PEI10,000-silica achieved CO2 adsorption capacities of 58.5 and 100.4 mg g–1 under dry and humid conditions and showed cyclic stability during a 10 times adsorption–desorption process. Therefore, PEI x -silica monolith provides a promising strategy for controlling indoor CO2.

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“…The authors observed an increase of CO 2 capacity from 1.77 mmol g −1 in fresh zeolites to 6.13 mmol g −1 in ethylenediamine (EDA) modified hierarchical zeolite ZSM-5 for the adsorption with a humid (5% water) gas stream of 30% CO 2 /N 2 at 75 °C. 153 Furthermore, Panda et al showed that modification of binder-containing zeolite 4A with amines greatly improves the CO 2 adsorption capacity. 143 They found that the amines are located in the large pores generated by the binder as a lower mesopore volume was observed in the amine modified zeolites, compared to the unmodified material.…”

Section: Co2 Adsorption In Zeolites and Zeolites Related Materialsmentioning

confidence: 99%

Carbon dioxide capture with zeotype materials

Davis

2022

Chem. Soc. Rev.

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High CO2 adsorption on improved ZSM-5 zeolite porous structure modified with ethylenediamine and desorption characteristics with microwave

Cited by 17 publications

References 33 publications

Screening and Performance Evaluation of Triethylenetetramine Nonaqueous Solutions for CO₂ Capture with Microwave Regeneration

Screening and Performance Evaluation of Triethylenetetramine Nonaqueous Solutions for CO₂ Capture with Microwave Regeneration

Indoor CO₂ Control through Mesoporous Amine-Functionalized Silica Monoliths

Carbon dioxide capture with zeotype materials

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High CO2 adsorption on improved ZSM-5 zeolite porous structure modified with ethylenediamine and desorption characteristics with microwave

Cited by 17 publications

References 33 publications

Screening and Performance Evaluation of Triethylenetetramine Nonaqueous Solutions for CO2 Capture with Microwave Regeneration

Screening and Performance Evaluation of Triethylenetetramine Nonaqueous Solutions for CO2 Capture with Microwave Regeneration

Indoor CO2 Control through Mesoporous Amine-Functionalized Silica Monoliths

Carbon dioxide capture with zeotype materials

Contact Info

Product

Resources

About

Screening and Performance Evaluation of Triethylenetetramine Nonaqueous Solutions for CO₂ Capture with Microwave Regeneration

Screening and Performance Evaluation of Triethylenetetramine Nonaqueous Solutions for CO₂ Capture with Microwave Regeneration

Indoor CO₂ Control through Mesoporous Amine-Functionalized Silica Monoliths