High-temperature and low concentration CO2 sorption on Li4SiO4 based sorbents: Study of the used silica and doping method effects

Seggiani, Maurizia; Puccini, Monica; Vitolo, Sandra

doi:10.1016/j.ijggc.2011.03.003

Cited by 126 publications

(90 citation statements)

References 19 publications

(31 reference statements)

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“…Moreover, according to the intensities obtained in both case, the sample prepared from 1000RHA presented smaller crystalline size than that derived from the 600RHA. This result is similar to Seggiani's findings [11], who demonstrated that the used silica source had an important impact on the structure of the resulting Li 4 SiO 4 sorbents. …”

Section: B Xrd Characterization Of Sorbentssupporting

confidence: 91%

Effects of Calcination Temperature on the Structure and CO2 Sorption Properties of Li4SiO4 Sorbents from Rice Husk Ash

Wang¹,

Zhao²,

Zhang³

et al. 2014

Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

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Abstract-Highly efficient Li 4 SiO 4 -based sorbents for CO 2 capture at high temperature, were developed using waste rice husk ash (RHA). Two different RHAS resulted from different calcination temperature as raw materials for preparing the Li 4 SiO 4 -based sorbents. These raw ashes and their resulting Li 4 SiO 4 -based sorbents were characterized by X-ray diffraction, thermogravimetry (dynamic and isothermically), and nitrogen adsorption. CO 2 sorption stability was investigated in a dual fixed-bed reactor. The characteristic results showed that high calcination temperature could lead to crystalline silica, which may produce the lower crystalline size, higher porosity and larger surface area as compared with the case of low temperature. This favourable structure appeared to be the main reason for increasing in CO 2 capture performance and kinetic behavior as illustrated by the thermogravimetric analyses. This pretreatment Li 4 SiO 4 -based sorbent also maintained a higher capacity during the multiple cycles. It was concluded that the synthesis of Li 4 SiO 4 -based sorbents obtained from biomass ash is a promising approach for CO 2 capture at high temperature.

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Section: B Xrd Characterization Of Sorbentssupporting

confidence: 91%

Effects of Calcination Temperature on the Structure and CO2 Sorption Properties of Li4SiO4 Sorbents from Rice Husk Ash

Wang¹,

Zhao²,

Zhang³

et al. 2014

Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

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show abstract

“…(1). The advantages of this solid include a relatively high capture capacity (theoretical value of 36.7 wt%) at temperatures of 450-700°C, fast kinetics of carbonation/decarbonation, good mechanical properties and also the possibility of use in repeated carbonation/decarbonation cycles [18][19][20]. Still, there is no enough knowledge related to the regeneration potential of this material [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Lithium orthosilicate for CO2 capture with high regeneration capacity: Kinetic study and modeling of carbonation and decarbonation reactions

Amorim

Domenico

Dantas

et al. 2016

Chemical Engineering Journal

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“…Various synthesis strategies such as solid‐state reactions , impregnated suspension , sol−gel method , and precipitation were considered to synthesize Li 4 SiO 4 sorbents. Meanwhile, the sources of Si including quartz , amorphous silica (SiO 2 ) , tetraethyl orthosilicate (TEOS) , and the precursors of Li involving Li 2 CO 3 , LiOH·H 2 O, LiNO 3 , and CH 3 COOLi were also examined. It was also demonstrated that the CO 2 capture performance could be improved by introducing appropriate dopants into the Li 4 SiO 4 crystal structure.…”

Section: Introductionmentioning

confidence: 99%

High temperature capture of CO₂on Li₄SiO₄-based sorbents from biomass ashes

Wang

Zhao

Guo

et al. 2014

Environ. Prog. Sustainable Energy

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Highly efficient Li4SiO4 (lithium orthosilicate)/biomass‐based (Li4SiO4/bio‐based) sorbents for CO2 capture at high temperature, were developed using a water pretreated waste materials (biomass ashes). Three typical biomass ashes and a water pretreated biomass ash were as raw materials for preparing the Li4SiO4/bio‐based sorbents. These raw biomass ashes and their resulting Li4SiO4/bio‐based sorbents were characterized by energy dispersive X‐ray, X‐ray diffraction, scanning electron microscopy, nitrogen adsorption, and thermogravimetry. The stability of CO2 sorption was tested through 15 carbonation/calcination cycles in a fixed bed reactor. The characteristic results showed that the high amount of metals (especially alkali metals) of biomass ashes could produce low contents of silica and further led the amorphous silica nanoparticles to more severe quartz aggregation. Moreover, these different physical properties of biomass ashes had a significant effect on the phase composition, microstructure, specific surface area, and CO2 absorption properties of their synthesized Li4SiO4/bio‐based sorbents. With the higher contents of SiO2 and the smaller particle size, its resulting sorbent using the water pretreatment biomass ashes presented the higher amount of Li4SiO4, smaller particle size and larger specific surface area. This special structure appeared to be the main reasons for increasing in CO2 capture performance and kinetic behavior as illustrated by the thermogravimetric analyses. This pretreatment Li4SiO4/bio‐based sorbent also maintained its higher capacity during the multiple cycles. It was concluded that synthesis of Li4SiO4‐based sorbents obtained from the pretreated biomass ash is a promising approach for CO2 capture at high temperature. © 2014 American Institute of Chemical Engineers Environ Prog, 34: 526–532, 2015

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High-temperature and low concentration CO2 sorption on Li4SiO4 based sorbents: Study of the used silica and doping method effects

Cited by 126 publications

References 19 publications

Effects of Calcination Temperature on the Structure and CO2 Sorption Properties of Li4SiO4 Sorbents from Rice Husk Ash

Effects of Calcination Temperature on the Structure and CO2 Sorption Properties of Li4SiO4 Sorbents from Rice Husk Ash

Lithium orthosilicate for CO2 capture with high regeneration capacity: Kinetic study and modeling of carbonation and decarbonation reactions

High temperature capture of CO₂on Li₄SiO₄-based sorbents from biomass ashes

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High-temperature and low concentration CO2 sorption on Li4SiO4 based sorbents: Study of the used silica and doping method effects

Cited by 126 publications

References 19 publications

Effects of Calcination Temperature on the Structure and CO2 Sorption Properties of Li4SiO4 Sorbents from Rice Husk Ash

Effects of Calcination Temperature on the Structure and CO2 Sorption Properties of Li4SiO4 Sorbents from Rice Husk Ash

Lithium orthosilicate for CO2 capture with high regeneration capacity: Kinetic study and modeling of carbonation and decarbonation reactions

High temperature capture of CO2on Li4SiO4-based sorbents from biomass ashes

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High temperature capture of CO₂on Li₄SiO₄-based sorbents from biomass ashes