Systematic review on sono-assisted CO2 stripping, solvent recovery and energy demand aspects in solvent-based post-combustion carbon dioxide capture process

Ambedkar, B.; Sekaran, Arun Prasad Chandra; Nagarajan, Ramamurthy; Babarao, Ravichandar; Nagarajan, Krishna Kumar; Mayilvahanan, Shriram Arumugam

doi:10.1016/j.cep.2021.108723

Cited by 17 publications

(12 citation statements)

References 90 publications

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“…A recent review by Balraj et al 114,115 on ultrasonic-assisted solvent regeneration shows drastic improvement on CO 2 stripping cost reduction, solvent recovery and energy demand. The positive aspects of this technology are mass transfer enhancement, size reduction, cost minimization, compact design, control solvent degradation, operating under low/high viscous condition, which makes it better than the conventional solvent regeneration technique.…”

Section: Microreactor For Co 2 Capturementioning

confidence: 99%

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Novelty in fossil fuel carbon abatement technologies in the 21^st Century: post‐combustion carbon capture

Joel

Isa

2022

J of Chemical Tech & Biotech

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A global net zero target by mid-century and keeping the maximum global temperature rise to below 1.5 °C was agreed by nearly 200 nations at the 26th UN Climate Change Conference of the Parties. The Intergovernmental Panel on Climate Change advises that emission cuts by 45% are needed by 2030 in order to maintain the global temperature rise below the 1.5 °C target. To achieve this target, it is necessary to investigate technological options that are economically viable and globally acceptable for commercial deployment. This review paper looks at the new technologies needed to reduce CO 2 emission and to motivate commercial deployment, considering that the commercial deployment of CO 2 has been slowed down as a result of high capital and operating expenses which invariably increase the cost of energy. The paper presents a review on early years of process intensification technologies as well as a discussion on potential new process intensification options for CO 2 capture, with suggestions on how to modify those technologies for suitable application to solvent-based carbon capture. The work further discusses current process intensification technologies used for CO 2 capture applications. Solvent developments for enhancing CO 2 capture also are discussed as they contribute to cutting down the sizes of the units as well as decreasing the cost of regeneration which leads to reduction in capital and operating costs. A process flow diagram using a mop fan for capture of CO 2 from buildings is proposed. In addition, a new flow diagram is proposed for using loop reactor technology to capture CO 2 from large point sources, and finally a new process diagram using rotating packed bed absorber combined with sono-assisted regenerator is presented for improved performance of CO 2 capture technology. Recommendations on these diagrams are made to help ensure transition toward the net zero target.

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Section: Microreactor For Co 2 Capturementioning

confidence: 99%

“…A recent review by Balraj et al 114,115 . on ultrasonic‐assisted solvent regeneration shows drastic improvement on CO 2 stripping cost reduction, solvent recovery and energy demand.…”

Section: Process Intensification Options For Pccmentioning

confidence: 99%

Novelty in fossil fuel carbon abatement technologies in the 21^st Century: post‐combustion carbon capture

Joel

Isa

2022

J of Chemical Tech & Biotech

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“…These factors reduce the overall energy consumption of the carbon capture and sequestration (CCS) process. 8,9 Previous research has addressed only sonication effects in stripping CO 2 from rich solvent at low temperatures. 10 In recent times, global research has focused on enhancing conventional CO 2 absorption/adsorption and desorption/ regeneration using hydrophilic/hydrophobic nanoparticles and suspensions.…”

Section: Introductionmentioning

confidence: 99%

“…Acoustic cavitation and streaming effects are the mechanisms frequently cited as primary causes of sono-assisted CO 2 stripping. , The positive aspects associated with this method are that it consumes less energy to carry out solvent regeneration, which takes place at minimal-temperature conditions (∼45 °C) to degas the CO 2 from carbon-rich solvent, reduces degradation of the solvent and solvent loss, and reduces formation of undesired and harmful byproducts due to low-temperature stripping. These factors reduce the overall energy consumption of the carbon capture and sequestration (CCS) process. , Previous research has addressed only sonication effects in stripping CO 2 from rich solvent at low temperatures…”

Section: Introductionmentioning

confidence: 99%

“…Alternative techniques for carbon-rich solvent regeneration have been developed, such as conventional solvent regeneration using Al 2 O 3 , SiO 2 , TiO 2 , and Fe 2 O 3 nanoparticles (NPs), MEA-based nanofluids such as SiO 2 and Sulfinol-M-based Fe 3 O 4 , and multiwalled carbon nanotubes (MWCNTs). − Low-frequency (35 kHz) bath-type ultrasonics-assisted solvent regeneration ( T = 20.15–28.15 °C) has been attempted using amine-functionalized Fe 3 O 4 NPs . The main drawbacks of using low-frequency ultrasound are CO 2 reabsorption while regenerating the solvent − and lack of data on energy demand and scalability aspects in the literature. In addition, some solvent regeneration techniques have been attempted without using NPs, such as electrochemical solvent regeneration ( T = 60 °C), , microwave solvent regeneration , ( T = 80–90 °C), megasonics-assisted solvent regeneration ( T = 45 °C), and ultralow-temperature sono-assisted CO 2 stripping…”

Section: Introductionmentioning

confidence: 99%

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Intensification of Sono-Assisted CO₂ Stripping/Carbon-Rich Solvent Regeneration by Fe₂O₃ Hydrophobic Micronized Particles

kumar¹,

Ambedkar²,

Nagarajan

et al. 2023

Ind. Eng. Chem. Res.

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In 2020, the amount of CO2 generated by coal combustion was estimated to be 15.32 Gt CO2. In a solvent-based postcombustion CO2 capture (PCCC) process, the solvent regeneration/CO2 stripping process uses thermal energy to regenerate the solvent. It has an adverse impact on the solvent’s thermal stability, besides causing a significant quantity of solvent loss and a high energy demand. In recent times, one method for PCCC cost savings has emerged: sono-assisted solvent regeneration/CO2 stripping. The present work focuses on enhancing the high-frequency ultrasound-assisted aqueous carbon-rich 30 wt % monoethanolamine (MEA) solvent regeneration/CO2 stripping process using Fe2O3 hydrophobic micronized particles (concentrations varied in the ranges of 0.005, 0.01, 0.05, 0.1, and 0.2 wt %) in a controlled-temperature environment at 12 °C using 360 kHz, 470 kHz, and 1 MHz (streaming-dominant frequencies). From the investigation, the lowest concentration (0.005 wt %) of micronized particles shows maximum enhancements of 12.29, 20.93, and 33.62%, thereby decreasing the solvent sensible energy requirements by 1.26, 2.4, and 2.9 times than without micronized particles for the tested frequencies. In addition, the observed CO2 stripping rate is much higher when compared to the case without micronized particles. The stripping efficiency is observed to be high in the initial stages of sonication (5 min).

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Current status and future scenarios of carbon capture from power plants emission: a review

Alalaiwat

Khan

2023

Rev Environ Sci Biotechnol

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Systematic review on sono-assisted CO2 stripping, solvent recovery and energy demand aspects in solvent-based post-combustion carbon dioxide capture process

Cited by 17 publications

References 90 publications

Novelty in fossil fuel carbon abatement technologies in the 21^st Century: post‐combustion carbon capture

Novelty in fossil fuel carbon abatement technologies in the 21^st Century: post‐combustion carbon capture

Intensification of Sono-Assisted CO₂ Stripping/Carbon-Rich Solvent Regeneration by Fe₂O₃ Hydrophobic Micronized Particles

Current status and future scenarios of carbon capture from power plants emission: a review

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Systematic review on sono-assisted CO2 stripping, solvent recovery and energy demand aspects in solvent-based post-combustion carbon dioxide capture process

Cited by 17 publications

References 90 publications

Novelty in fossil fuel carbon abatement technologies in the 21st Century: post‐combustion carbon capture

Novelty in fossil fuel carbon abatement technologies in the 21st Century: post‐combustion carbon capture

Intensification of Sono-Assisted CO2 Stripping/Carbon-Rich Solvent Regeneration by Fe2O3 Hydrophobic Micronized Particles

Current status and future scenarios of carbon capture from power plants emission: a review

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Novelty in fossil fuel carbon abatement technologies in the 21^st Century: post‐combustion carbon capture

Novelty in fossil fuel carbon abatement technologies in the 21^st Century: post‐combustion carbon capture

Intensification of Sono-Assisted CO₂ Stripping/Carbon-Rich Solvent Regeneration by Fe₂O₃ Hydrophobic Micronized Particles