Mechanism and kinetics of CO2 adsorption for TEPA- impregnated hierarchical mesoporous carbon in the presence of water vapor

Wang, Yanxia; Guo, Tuo; Hu, Xiude; Hao, Jian; Guo, Qi

doi:10.1016/j.powtec.2020.04.062

Cited by 41 publications

(19 citation statements)

References 44 publications

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“…From the study by Wang et. al., it was observed that the saturated adsorption capacity and TEPA efficiency of HMC-TEPA-30% are enhanced obviously in the presence of water vapor (13). When the water vapor content increased from 0 to 15 vol%, the reaction between amine groups with CO2 and H2O was facilitated, thus increasing adsorption capacity and TEPA efficiency.…”

Section: Moisture Presentmentioning

confidence: 96%

“…Besides, TEPA as a branched polyamine has abundant amino functional groups and could potentially enhance the CO2 adsorption of solid porous inorganic substrates such as nanosepiolite and mesocellular silica sponge (12). Furthermore, TEPA has a higher density of amine groups and a relatively lower viscosity compared to other amine compounds (13).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A brief on tetraethylenepentamine (TEPA) functionalized-adsorbents in CO₂ capture application

Tan

Ruhaimi

Hitam

et al. 2022

J. Phys.: Conf. Ser.

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Among numerous carbon capture technologies, adsorption is considered one of the most effective approaches to reduce carbon dioxide (CO2) emissions in the atmosphere. Various modification approaches of adsorbents have been introduced to enhance the CO2 adsorption ability. Recently, an amine such as tetraethylenepentamine (TEPA) has been extensively used as an adsorbent’s promoter because of its high amine density, low viscosity, low cost, and low toxicity properties. This has added an advantage to the adsorbent in terms of economical and environmentally benign. Therefore, it is important to provide the latest review on TEPA-functionalized adsorbents, specifically on the effects of TEPA functionalization, different TEPA loading, diverse adsorption conditions, as well as the structure of adsorbents towards the CO2 adsorption capacity. Different adsorption conditions over a wide range of adsorption temperatures were thoroughly discussed and several recommendations for future studies were also been proposed.

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Section: Moisture Presentmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

A brief on tetraethylenepentamine (TEPA) functionalized-adsorbents in CO₂ capture application

Tan

Ruhaimi

Hitam

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…For instance, Wang and co-workers [30] have achieved 4.42 mmol/g of CO2 adsorption performance by using PEI-multi-walled carbon nanotubes (PEI-CNTs) under a humid gas mixture (15% CO2, 85% N2, RH = 50%), a slightly higher CO2 uptake than that of performed under 15% CO2, 5% O2 and 80% N2 condition (4.22 mmol/g) [30]. It is believed that the enhanced CO2 adsorption performance is due to the formation of carbamate and bicarbonate in the humid environment, in which the only carbamate is formed in dry conditions [45]. The formation of bicarbonate requires lower amino compared to carbamate during the dry conditions.…”

Section: 4effect Of Different Flow Conditions Toward Adsorption Perfo...mentioning

confidence: 99%

Amine (Polyethyleneimine)-modified solid adsorbent for CO₂ capture

Rani

Hitam

Taib

2022

J. Phys.: Conf. Ser.

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The increase in the concentration of carbon dioxide (CO2) gas in the atmosphere has led to various severe negative consequences. There are numerous methods for the reduction of CO2 that have been introduced such as chemical and physical absorption, organic liquid scrubbing, amine-based absorption, etc. Adsorption by using solid adsorbents is one of the promising methods that has been widely studied by researchers. The performance of the adsorbents can be enhanced by functionalized with diverse types of promoters. This review is discussing the performance of polyethyleneimine (PEI) as a promoter towards the adsorption of CO2. To achieve high effective PEI-adsorbents, the percentage of PEI amine loading, type of porous support, temperature, and different flow conditions are among the important parameters that need to be considered. The chemical stability of PEI can be improved through modification crosslinking of PEI. Hence in this review, the effect of amine loading, porous support, temperature, slow condition and crosslinking of PEI to its CO2 adsorption performance is observed.

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“…GO provided an SC surface area of 1072.08 m 2 /g with an iodine adsorption capacity of 1233.99 mg/g. GO has a large number of functional groups, excellent mechanical properties, and chemical stability, which allows it to be used as an efficient carbon material to alter and adjust pore structure, specific surface area, and enhance more developed properties of SC for gas adsorption and storage [ 92 ].…”

Section: Contaminant Adsorptionmentioning

confidence: 99%

Remediation with Semicoke-Preparation, Characterization, and Adsorption Application

Lartey-Young

2020

Materials

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Development of low-cost contaminant sorbents from industrial waste is now an essential aspect of the circular economy since their disposal continues to threaten ecological integrity. Semicoke (SC), a by-product generated in large quantities and described as solid waste from gasification of low-rank coal (LRC), is gaining popularity in line with its reuse capacity in the energy industry but is less explored as a contaminant adsorbent despite its physical and elemental carbon properties. This paper summarizes recent information on SC, sources and production, adsorption mechanism of polluting contaminants, and summarizes regeneration methods capable of yielding sustainability for the material reuse.

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Mechanism and kinetics of CO2 adsorption for TEPA- impregnated hierarchical mesoporous carbon in the presence of water vapor

Cited by 41 publications

References 44 publications

A brief on tetraethylenepentamine (TEPA) functionalized-adsorbents in CO₂ capture application

A brief on tetraethylenepentamine (TEPA) functionalized-adsorbents in CO₂ capture application

Amine (Polyethyleneimine)-modified solid adsorbent for CO₂ capture

Remediation with Semicoke-Preparation, Characterization, and Adsorption Application

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Mechanism and kinetics of CO2 adsorption for TEPA- impregnated hierarchical mesoporous carbon in the presence of water vapor

Cited by 41 publications

References 44 publications

A brief on tetraethylenepentamine (TEPA) functionalized-adsorbents in CO2 capture application

A brief on tetraethylenepentamine (TEPA) functionalized-adsorbents in CO2 capture application

Amine (Polyethyleneimine)-modified solid adsorbent for CO2 capture

Remediation with Semicoke-Preparation, Characterization, and Adsorption Application

Contact Info

Product

Resources

About

A brief on tetraethylenepentamine (TEPA) functionalized-adsorbents in CO₂ capture application

A brief on tetraethylenepentamine (TEPA) functionalized-adsorbents in CO₂ capture application

Amine (Polyethyleneimine)-modified solid adsorbent for CO₂ capture