Comprehensive kinetic study of sulfur dioxide removal by magnesium oxide using TG

Ani, A. Bakhshi; Ebrahim, H. Ale

doi:10.1007/s10973-021-10597-6

Cited by 10 publications

(2 citation statements)

References 19 publications

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“…Earlier studies have suggested that the reaction of pure MgO with SO 2 and O 2 is insignificant for temperatures <600 °C and generally slower than reaction R10 for CaO. 208,209 More recent works have shown that MgO of high surface area and porosity indeed reacts with SO 2 and O 2 at lower temperatures (∼500 °C), 210,211 but the sulfation of MgO at typical carbonation temperatures (∼300−350 °C) has not been reported yet. Hence, it is expected that the presence of SO 2 does not reduce the cyclic CO 2 uptake capacity of MgO-based sorbents considerably.…”

Section: Role Of the Flue Gas Environmentmentioning

confidence: 99%

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

et al. 2021

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Carbon dioxide capture and mitigation form a key part of the technological response to combat climate change and reduce CO2 emissions. Solid materials capable of reversibly absorbing CO2 have been the focus of intense research for the past two decades, with promising stability and low energy costs to implement and operate compared to the more widely used liquid amines. In this review, we explore the fundamental aspects underpinning solid CO2 sorbents based on alkali and alkaline earth metal oxides operating at medium to high temperature: how their structure, chemical composition, and morphology impact their performance and long-term use. Various optimization strategies are outlined to improve upon the most promising materials, and we combine recent advances across disparate scientific disciplines, including materials discovery, synthesis, and in situ characterization, to present a coherent understanding of the mechanisms of CO2 absorption both at surfaces and within solid materials.

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Section: Role Of the Flue Gas Environmentmentioning

confidence: 99%

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

et al. 2021

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“…the long-term storage or exposure to harsh processing conditions. Papers dealing with the kinetics of solid-state processes are thus frequently published not only in thermo-analytical journals [1][2][3][4][5][6][7][8][9][10], but also in journals focused on materials science [11][12][13][14][15], pharmacy [16][17][18][19][20], plastics [21][22][23][24][25], explosives [26][27][28][29][30] etc. In correspondence, the methodology for the kinetic calculations is constantly developed-reviews on the recent advancements in this field can be found e.g.…”

Section: Introductionmentioning

confidence: 99%

Simulation and non-linear optimization of kinetic models for solid-state processes

Luciano,

Svoboda

2024

Modelling Simul. Mater. Sci. Eng.

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Numerical simulations and optimizations methods are increasingly used in the field of kinetic analysis of solid-state processes, such as the crystallization of glassy materials. The influence of the simulations accuracy (with the two main factors being the initial value of conversion rate and the density of points) on the kinetic distortions was tested for the major solid-state kinetic models: nucleation-growth Johnson-Mehl-Avrami model, nth order reaction model, autocatalyzed nth order reaction model, diffusion models, contracting cylinder and contracting sphere models. The simulations were performed using a self-developed software based on the LSODA initial-value-problem-solver; the evaluation of the changes in the shape of the kinetic peaks was done using a commercial software that utilizes a standardized multivariate kinetic analysis approach. The accuracy was found to be influenced mainly by initial value of conversion rate. For majority of the tested kinetic models, the simulation accuracy had negligible effect on the consequently determined values activation energy, pre-exponential factor, integrated area of the kinetic peaks, or the asymmetry-determining values of the models kinetic exponents. Significant influence of the simulation accuracy was observed for the models with active autocatalytic features, which were identified to be the main source of the deviations introduced and propagated through the simulation algorithm. Contrary to the previous research, the deviations of the simulated peaks shape cannot be associated solely with the positive asymmetry of the kinetic peaks.

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Kinetic study of sulfur dioxide removal reaction with manganese dioxide by random pore model using thermogravimetry

Parandin,

Ale Ebrahim,

Norouzi

2024

J Therm Anal Calorim

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Comprehensive kinetic study of sulfur dioxide removal by magnesium oxide using TG

Cited by 10 publications

References 19 publications

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

Simulation and non-linear optimization of kinetic models for solid-state processes

Kinetic study of sulfur dioxide removal reaction with manganese dioxide by random pore model using thermogravimetry

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Comprehensive kinetic study of sulfur dioxide removal by magnesium oxide using TG

Cited by 10 publications

References 19 publications

CO2 Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

CO2 Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

Simulation and non-linear optimization of kinetic models for solid-state processes

Kinetic study of sulfur dioxide removal reaction with manganese dioxide by random pore model using thermogravimetry

Contact Info

Product

Resources

About

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances