Experimental and modeling kinetic study of the CO 2 absorption by Li 4 SiO 4

López-Ortíz, Alejandro; Escobedo-Bretado, Miguel A.; Velderrain, V. Guzmán; Zaragoza, M. Meléndez; Gutiérrez, Jesús Salinas; Gutiérrez, Daniel Lardizábal; Collins-Martı́nez, V.

doi:10.1016/j.ijhydene.2014.05.015

Cited by 58 publications

(32 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 4 shows the equilibrium partial pressure of CO 2 over Li 4 SiO 4 material as a function of temperature [26], and the maximum temperature of CO 2 absorption by Li 4 SiO 4 material is determined by the corresponding CO 2 partial pressure. When CO 2 partial pressure is 100% at 1 atm, it can be inferred from Figure 4 that the equilibrium temperature is around 715 °C, which agrees well with the results that discussed above.…”

Section: Thermodynamics and Kinetics Of Co2 Absorption By Li4sio4mentioning

confidence: 99%

“…Although the double exponential model is widely used due to its simplicity, Ortiz et al [26] thought that this model was short of the theoretical mechanism to support its fitting with the experimental data. Zhang et al [27] reported that the Avrami–Erofeev model was relevant to the reaction mechanism of the formation and growth of product crystals, which are shown as Equations (6) and (7):normaldα/normaldt=Knfalse(1−αfalse)false[−lnfalse(1−αfalse)false]false(n−1false)/n ln[−ln(1−α)]=lnk+nlnt where α refers to the degree of conversion; K denotes the kinetic constant; k equals to K n ; and n is the kinetic parameter; t represents the time.…”

Section: Thermodynamics and Kinetics Of Co2 Absorption By Li4sio4mentioning

confidence: 99%

“…Equilibrium CO 2 partial pressure as a function of temperature for the absorption of CO 2 of Li 4 SiO 4 [26]. …”

Section: Figurementioning

confidence: 99%

See 2 more Smart Citations

Performance of Li4SiO4 Material for CO2 Capture: A Review

Yan

et al. 2019

IJMS

View full text Add to dashboard Cite

Lithium silicate (Li4SiO4) material can be applied for CO2 capture in energy production processes, such as hydrogen plants, based on sorption-enhanced reforming and fossil fuel-fired power plants, which has attracted research interests of many researchers. However, CO2 absorption performance of Li4SiO4 material prepared by the traditional solid-state reaction method is unsatisfactory during the absorption/regeneration cycles. Improving CO2 absorption capacity and cyclic stability of Li4SiO4 material is a research highlight during the energy production processes. The state-of-the-art kinetic and quantum mechanical studies on the preparation and CO2 absorption process of Li4SiO4 material are summarized, and the recent studies on the effects of preparation methods, dopants, and operating conditions on CO2 absorption performance of Li4SiO4 material are reviewed. Additionally, potential research thoughts and trends are also suggested.

show abstract

Section: Thermodynamics and Kinetics Of Co2 Absorption By Li4sio4mentioning

confidence: 99%

Section: Thermodynamics and Kinetics Of Co2 Absorption By Li4sio4mentioning

confidence: 99%

See 1 more Smart Citation

Performance of Li4SiO4 Material for CO2 Capture: A Review

Yan

et al. 2019

IJMS

View full text Add to dashboard Cite

show abstract

“…This technological route produces a flue gas stream that is highly saturated with CO 2 [71][72][73][74][75][76]. This technology also produces flame with an excessively high temperature because, theoretically, if fossil fuel (coal) is burnt in pure oxygen, much heat is produced [77][78][79][80][81][82][83][84][85][86][87][88][89].…”

Section: Oxy-fuelmentioning

confidence: 99%

The Potential of CO2 Capture and Storage Technology in South Africa’s Coal-Fired Thermal Power Plants

Yoro

Sekoai

2016

Environments

View full text Add to dashboard Cite

Abstract:The global atmospheric concentration of anthropogenic gases, such as carbon dioxide, has increased substantially over the past few decades due to the high level of industrialization and urbanization that is occurring in developing countries, like South Africa. This has escalated the challenges of global warming. In South Africa, carbon capture and storage (CCS) from coal-fired power plants is attracting increasing attention as an alternative approach towards the mitigation of carbon dioxide emission. Therefore, innovative strategies and process optimization of CCS systems is essential in order to improve the process efficiency of this technology in South Africa. This review assesses the potential of CCS as an alternative approach to reducing the amount CO 2 emitted from the South African coal-fired power plants. It examines the various CCS processes that could be used for capturing the emitted CO 2 . Finally, it proposes the use of new adsorbents that could be incorporated towards the improvement of CCS technology.

show abstract

“…To investigate the sorption behaviors of Li 4 SiO 4 , the development of a suitable kinetic model has attracted many researchers' attention. However, most of the researches are focused on the sorption behaviors under CO 2 pressure of 101,325 Pa, and the effect of the CO 2 partial pressure and steam on the Li 4 SiO 4 absorption kinetic behaviors has been rarely reported . Actually, the CO 2 partial pressure and steam are two important factors in the industrial SMR system.…”

Section: Introductionmentioning

confidence: 99%

Behaviors and kinetic models analysis of Li₄SiO₄ under various CO₂ partial pressures

et al. 2017

View full text Add to dashboard Cite

The absorption behaviors of Li4SiO4 sorbent under various CO2 partial pressures and temperatures were investigated through numerical and experimental methods. It was found that Li4SiO4 showed poor absorption capacity at high temperatures (>525°C) under CO2 partial pressure of 5066 Pa. This phenomenon was explained by the thermodynamic results from FactSage5.5 software. Meanwhile, a modified Jander‐Zhang model based on the double‐shell structure of the Li4SiO4 sorbent was developed to describe the absorption kinetic behaviors of CO2 on Li4SiO4. The results showed that the modified Jander‐Zhang model could fit the kinetic experimental data well. Furthermore, the influence of steam on CO2 absorption was also analyzed by the modified Jander‐Zhang model. The results showed that the activation energy in the absorption process with steam was smaller than that without steam, which indicated that the presence of steam could promote the CO2 diffusion in product layer, therefore, improving the sorption capacity. © 2017 American Institute of Chemical Engineers AIChE J, 63: 2153–2164, 2017

show abstract

Experimental and modeling kinetic study of the CO 2 absorption by Li 4 SiO 4

Cited by 58 publications

References 38 publications

Performance of Li4SiO4 Material for CO2 Capture: A Review

Performance of Li4SiO4 Material for CO2 Capture: A Review

The Potential of CO2 Capture and Storage Technology in South Africa’s Coal-Fired Thermal Power Plants

Behaviors and kinetic models analysis of Li₄SiO₄ under various CO₂ partial pressures

Contact Info

Product

Resources

About

Experimental and modeling kinetic study of the CO 2 absorption by Li 4 SiO 4

Cited by 58 publications

References 38 publications

Performance of Li4SiO4 Material for CO2 Capture: A Review

Performance of Li4SiO4 Material for CO2 Capture: A Review

The Potential of CO2 Capture and Storage Technology in South Africa’s Coal-Fired Thermal Power Plants

Behaviors and kinetic models analysis of Li4SiO4 under various CO2 partial pressures

Contact Info

Product

Resources

About

Behaviors and kinetic models analysis of Li₄SiO₄ under various CO₂ partial pressures