Prediction of biphasic separation in CO<sub>2</sub> absorption using a molecular surface information-based machine learning model

Kataoka, T.; Hao, Yingquan; Hung, Ying Chieh; Orita, Yasuhiko; Shimoyama, Yusuke

doi:10.1039/d2em00253a

Cited by 1 publication

(1 citation statement)

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“…The results showed that the accuracy of phase behavior prediction exceeded 80%. Kataoka et.al used a machine learning model based on molecular surface information to predict the phase change behavior of mixed solvents composed of alkylamine and ethylene glycol ether or alcohol before and after CO 2 absorption. − In a data set containing 61 mixed solvents with alkylamine/ethylene glycol ether or alcohol, the accuracy of phase behavior prediction exceeded 90%. The above research still contributes to the development of SO 2 phase change absorbents.…”

Section: Absorbent Evaluationmentioning

confidence: 99%

An Overview of Flue Gas SO₂ Capture Technology Based on Absorbent Evaluation and Process Intensification

Xie,

Wang,

Liu

et al. 2024

Ind. Eng. Chem. Res.

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Highly efficient and low-energy SO 2 capture technology is a key measure to control SO 2 pollution and sulfur supply side and demand-side balancing. This paper reviews the current development of SO 2 capture technology by chemical absorption from two aspects of absorbent and process enhancement. The SO 2 absorption mechanism of various absorbents are first described, and it was divided into aqueous solvents and nonaqueous solvents. Four prediction models for the SO 2 absorption capacity of different absorbents are proposed, providing an effective tool for the selection of efficient and low-energy absorbents. The advantages, bottlenecks, and development directions of each absorbent are analyzed. The diversity of organic amines provides a possibility for enhancing the market competitiveness of organic amine aqueous solutions in aqueous solvents, while the high energy consumption in the absorbent regeneration process is a disadvantage. The ionic amino acid aqueous solution reduces the volatilization of the effective components of the absorbent and has better SO 2 absorption potential than the organic amine aqueous solution. The greatest advantage of the nonaqueous solvents is the avoidance of ineffective latent heat consumption. High-throughput screening has become a bridge for the application of aqueous and nonaqueous solvents to industrial SO 2 capture processes. Finally, the application potential of a process intensification strategy in SO 2 capture technology is discussed, in which solvent intensification can avoid latent heat consumption, equipment intensification can improve the efficiency of gas−liquid mass transfer and process matching can recover the available energy of SO 2 capture system. The comprehensive evaluation of SO 2 capture process based on various absorbents is the primary task to promote the development of promising absorbents. It is hoped that this paper can provide reference for the development of SO 2 capture processes.

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Section: Absorbent Evaluationmentioning

confidence: 99%

An Overview of Flue Gas SO₂ Capture Technology Based on Absorbent Evaluation and Process Intensification

Xie,

Wang,

Liu

et al. 2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

Prediction of biphasic separation in CO₂ absorption using a molecular surface information-based machine learning model

Abstract: Carbon dioxide capture technologies have been focused to overcome global warming. A biphasic absorbent is one of the promising approaches for energy-saving CO2 capture process. This biphasic absorbent is mainly...

Cited by 1 publication

References 35 publications

An Overview of Flue Gas SO₂ Capture Technology Based on Absorbent Evaluation and Process Intensification

An Overview of Flue Gas SO₂ Capture Technology Based on Absorbent Evaluation and Process Intensification

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Prediction of biphasic separation in CO2 absorption using a molecular surface information-based machine learning model

Abstract: Carbon dioxide capture technologies have been focused to overcome global warming. A biphasic absorbent is one of the promising approaches for energy-saving CO2 capture process. This biphasic absorbent is mainly...

Cited by 1 publication

References 35 publications

An Overview of Flue Gas SO2 Capture Technology Based on Absorbent Evaluation and Process Intensification

An Overview of Flue Gas SO2 Capture Technology Based on Absorbent Evaluation and Process Intensification

Contact Info

Product

Resources

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Prediction of biphasic separation in CO₂ absorption using a molecular surface information-based machine learning model

An Overview of Flue Gas SO₂ Capture Technology Based on Absorbent Evaluation and Process Intensification

An Overview of Flue Gas SO₂ Capture Technology Based on Absorbent Evaluation and Process Intensification