Gas–liquid microdispersion and microflow for carbon dioxide absorption and utilization: a review

Sheng, Lin; Wang, Kai; Deng, Jian; Chen, Guangwen; Luo, Guangsheng

doi:10.1016/j.coche.2023.100917

Cited by 20 publications

(8 citation statements)

References 51 publications

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“…It should also be noted that research on GASC has been conducted for a relatively short period. In practice, carbon source reduction measures (Yan et al, 2022), carbon absorption technologies (Sheng et al, 2023), and carbon sink trading (Ke et al, 2023) are widely used in greenhouse gas control. In the field of air pollution management, the main measures include strict control of high energy consumption and new production capacity in high-pollution industries, accelerating the adjustment of energy structure, and increasing the collection of pollution fees.…”

Section: Gascmentioning

confidence: 99%

Driving factors and key paths of greenhouse gas and air pollutants synergistic control using hybrid multiple-criteria decision-making

Guo,

Li,

Xie

et al. 2024

Front. Environ. Sci.

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Humanity has consumed a large amount of energy and resources to maintain the rapid development of the economy and society, causing greenhouse gas and air pollutants to rise continuously, generating enormous pressures for the sustainable development of many cities. It is economical to control greenhouse gas and air pollutants from the synergy perspective. To identify the key driving factors involved in synergistic control, this paper uses the pressure-state-response (PSR) model to design a performance evaluation model of greenhouse gas and air pollutants synergistic control (GASC) utilizing pressure, state, and response dimensions. The performance evaluation factor system of GASC comprises three primary aspects and 18 criteria. The analytic hierarchy process (AHP) was used to determine the weight of each factor in the evaluation system. The technique for order preference by similarity to an ideal solution (TOPSIS) method was used to calculate the ranking of the synergistic control effects of the four representative provinces in China. We use Importance-performance analysis (IPA) to analyze the performance of driving factors of synergistic control in the province with the lowest ranking from 2016 to 2020. The research shows that in Northeast China, represented by Liaoning province, the government’s response should include changing the support strategy for the new energy consumer, introducing synergistic control standards and policies, and making flexible adjustments to the supply chain. The research provides a scientific basis for the performance evaluation of GASC and decision-making support for lean response strategies.

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Section: Gascmentioning

confidence: 99%

Driving factors and key paths of greenhouse gas and air pollutants synergistic control using hybrid multiple-criteria decision-making

Guo,

Li,

Xie

et al. 2024

Front. Environ. Sci.

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“…The cellular structure from which the nozzle is made allows to achieve increased values of mass transfer coefficients due to the effect of film formation in small Вісник Національного технічного університету «ХПІ» Серія: Хімія, хімічна технологія та екологія, № 1(7)' 2022 Вісник Національного технічного університету «ХПІ». Серія: Хімія, хімічна технологія та екологія № 1 (11)'2024 cells [10]. The nozzle has a high porosity and relatively low hydraulic resistance.…”

Section: особливості масообміну в апаратах з рухомою насадкою в трифа...unclassified

“…The section of the column apparatus has a wide working range, and is a combination of a mass exchange plate with a movable spherical nozzle in combination with a stabilizer of the foam layer, which is also a separator that reduces splashing between sections [11].…”

Section: особливості масообміну в апаратах з рухомою насадкою в трифа...mentioning

confidence: 99%

Masstransfer Features in the Apparatuses With a Moving Nozzle in a Three-Phase Foam Layer

Manoilo,

Repko

et al. 2024

CCTE

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The improvement of heat and mass exchange equipment for sorption processes in the countercurrent contact of gas and liquid in combined block elements with a weighted spherical nozzle, as well as a more in-depth study of this process, is an urgent task of chemical technology. A fundamentally new type of ball-shaped three-dimensional mesh fluidized nozzle was developed and researched, the bodies of which are made of polymer layers with holes, and a freely coiled metal or polymer mesh is located inside. The nozzle has a high specific surface area, developed free volume and low bulk density. The study of mass transfer in the liquid and gas phases was carried out and the corresponding calculation equations were obtained. Dependencies for the calculation of the mass transfer coefficients and the efficiency of the combined block element on the mode and design parameters are established. The results of calculations based on the obtained dependencies show a sufficient correlation with the experimental data. The proposed model of the desorption process of carbon dioxide from water, which allows predicting the values of the efficiency indicators of the decarbonization process. It was established that the use of a combined block element with a ball-shaped nozzle allows to increase the mass transfer coefficients compared to the failure plate. The industrial implementation of absorption processes in the foam layer and the use of the gas-liquid layer stabilization method significantly expands the scope of application of foam apparatuses and opens up new opportunities for intensifying technological processes. Previously expressed assumption about the perspective of using mesh materials for the manufacture of nozzle bodies was confirmed by experiments, but the peculiarity of the operation of devices with similar nozzles should be emphasized.

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“…28 However, the intensification of mass transfer has not received significant attention. 29 The most commonly reported strategy for intensifying gas−liquid mixture mass transfer is the utilization of a microreactor. 30−35 Chen et al reported that improved efficiency, compared to that of a stirred tank reactor (STR) with respect to the production of PC, can be attained using a microreactor.…”

Section: Introductionmentioning

confidence: 99%

“…For the cycloaddition reaction of CO 2 and epoxides, significant effort was devoted to the development of efficient catalysts that cover alkali metal salts, ionic liquids, and metal complexes to achieve high selectivity for the resultant cyclic carbonates. – Moreover, the sufficient mass transfer of this cycloaddition is critical for achieving high efficiency and safety due to its gas–liquid reaction nature . However, the intensification of mass transfer has not received significant attention . The most commonly reported strategy for intensifying gas–liquid mixture mass transfer is the utilization of a microreactor. – Chen et al reported that improved efficiency, compared to that of a stirred tank reactor (STR) with respect to the production of PC, can be attained using a microreactor .…”

Section: Introductionmentioning

confidence: 99%

Jet Loop Reactor-Intensified CO₂ Utilization: An Efficient Strategy for the Synthesis of Ethylene Carbonate

Li,

Gu,

Yan

et al. 2024

Ind. Eng. Chem. Res.

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Utilizing CO2 to produce ethylene carbonate (EC) is highly significant in terms of both reducing CO2 emissions and acquiring fine chemicals. The gas–liquid mixture mass transfer in this process is critical for transformation efficiency and safety; however, the efficient strategy to intensify this mass transfer is limited. In this study, a jet loop reactor (JLR) is employed for the mass-transfer intensification of liquid–gas phases in the production of EC from the cycloaddition of CO2 and ethylene oxide. The effect of the JLR’s structure, mainly the size of the spray nozzle, on mass transfer intensification is investigated to determine the optimal working conditions. Additionally, the influence of reaction conditions on the transformation efficiency is investigated using in situ infrared spectroscopy, thus achieving rapid transformation of this cycloaddition under low CO2 pressures. Notably, the JLR exhibits an efficiency over three times higher than that of the stirred tank reactor, demonstrating its superior advantage in facilitating gas–liquid mixture mass transfer. Furthermore, a computational fluid dynamics (CFD) simulation of the reactor demonstrated its working process. The well-matched experimental and simulated results suggest the high potential of CFD in evaluating the efficiency of the JLR, which can serve as a basis for the structural design of the ejector.

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Gas–liquid microdispersion and microflow for carbon dioxide absorption and utilization: a review

Cited by 20 publications

References 51 publications

Driving factors and key paths of greenhouse gas and air pollutants synergistic control using hybrid multiple-criteria decision-making

Driving factors and key paths of greenhouse gas and air pollutants synergistic control using hybrid multiple-criteria decision-making

Masstransfer Features in the Apparatuses With a Moving Nozzle in a Three-Phase Foam Layer

Jet Loop Reactor-Intensified CO₂ Utilization: An Efficient Strategy for the Synthesis of Ethylene Carbonate

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Gas–liquid microdispersion and microflow for carbon dioxide absorption and utilization: a review

Cited by 20 publications

References 51 publications

Driving factors and key paths of greenhouse gas and air pollutants synergistic control using hybrid multiple-criteria decision-making

Driving factors and key paths of greenhouse gas and air pollutants synergistic control using hybrid multiple-criteria decision-making

Masstransfer Features in the Apparatuses With a Moving Nozzle in a Three-Phase Foam Layer

Jet Loop Reactor-Intensified CO2 Utilization: An Efficient Strategy for the Synthesis of Ethylene Carbonate

Contact Info

Product

Resources

About

Jet Loop Reactor-Intensified CO₂ Utilization: An Efficient Strategy for the Synthesis of Ethylene Carbonate