Characteristics of CO<sub>2</sub> Circulating Absorption by Sodium Humate and Potassium Carbonate

Jia, Shichao; Sun, Zhiguo; Chen, Luhan; Wang, Menglu; Feng, Run

doi:10.1109/aceee.2019.8817051

2019 2nd Asia Conference on Energy and Environment Engineering (ACEEE) 2019

DOI: 10.1109/aceee.2019.8817051

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Characteristics of CO₂ Circulating Absorption by Sodium Humate and Potassium Carbonate

Shichao Jia

Zhiguo Sun

Luhan Chen

et al.

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2024

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Characterization of Humic Acid Salts and Their Use for CO2 Reduction

Spietz,

Kazankapova,

Dobras

et al. 2024

Minerals

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The European Union aims to be climate neutral by 2050. To achieve this ambitious goal, net greenhouse gas emissions must be reduced by at least 55% by 2030. Post-combustion CO2 capture methods are essential to reduce CO2 emissions from the chemical industry, power generation, and cement plants. To reduce CO2, it must be captured and then stored underground or converted into other valuable products. Apromising alternative for CO2 reduction is the use of humic acid salts (HASs). This work describes a process for the preparation of potassium (HmK) and ammonium (HmA) humic acid salts from oxidized lignite (leonardite). A detailed characterization of the obtained HASs was conducted, including elemental, granulometric, and thermogravimetric analyses, as well as 1H-NMR and IR spectroscopy. Moreover, the CO2 absorption capacity and absorption rate of HASs were experimentally investigated. The results showed that the absorption capacity of the HASs was up to 10.9 g CO2 per kg. The CO2 absorption rate of 30% HmA solution was found to be similar to that of 30% MEA. Additionally, HmA solution demonstrated better efficiency in CO2 absorption than HmK. One of the issues observed during the CO2 absorption was foaming of the solutions, which was more noticeable with HmK.

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Characterization of Humic Acid Salts and Their Use for CO2 Reduction

Spietz,

Kazankapova,

Dobras

et al. 2024

Minerals

View full text Add to dashboard Cite

show abstract

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Characteristics of CO₂ Circulating Absorption by Sodium Humate and Potassium Carbonate

Cited by 1 publication

References 11 publications

Characterization of Humic Acid Salts and Their Use for CO2 Reduction

Characterization of Humic Acid Salts and Their Use for CO2 Reduction

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Characteristics of CO2 Circulating Absorption by Sodium Humate and Potassium Carbonate

Cited by 1 publication

References 11 publications

Characterization of Humic Acid Salts and Their Use for CO2 Reduction

Characterization of Humic Acid Salts and Their Use for CO2 Reduction

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Characteristics of CO₂ Circulating Absorption by Sodium Humate and Potassium Carbonate