The Applications of Lithium Zirconium Silicate at High Temperature for the Carbon Dioxide Sorption and Conversion to Syn-gas

Raskar, Reshma; Rane, Vilas H.; Gaikwad, A. G.

doi:10.1007/s11270-013-1569-2

Cited by 7 publications

(3 citation statements)

References 32 publications

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“…Among these materials, different alkaline ceramics have been reported as good solid candidates for CO 2 sorbents in terms of large CO 2 sorption capacity and high operating temperatures. − Some of the alkaline ceramics most studied are lithium silicates (Li 8 SiO 6 , Li 4 SiO 4 , and Li 2 SiO 3 ), − lithium zirconates (Li 8 ZrO 6 , Li 6 Zr 2 O 7 , and Li 2 ZrO 3 ), …”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

et al. 2014

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Sodium metatitanate (Na2TiO3) was successfully synthesized via a solid-state reaction. The Na2TiO3 structure and microstructure were characterized using X-ray diffraction, scanning and transmission electron microscopy, and N2 adsorption. Then, the CO2 chemisorption mechanism on Na2TiO3 was systematically analyzed to determine the influence of temperature. The CO2 chemisorption capacity of Na2TiO3 was evaluated both dynamically and isothermally, and the products were reanalyzed to elucidate the Na2TiO3–CO2 reaction mechanism. Different chemical species (Na2CO3, Na2O, and Na4Ti5O12 or Na16Ti10O28) were identified during the CO2 capture process in Na2TiO3. In addition, some CO2 chemisorption kinetic parameters were determined. The Δ H ⧧ was found to be 140.9 kJ/mol, to the Na2TiO3–CO2 system, between 600 and 780 °C. Results evidenced that CO2 chemisorption on Na2TiO3 highly depends on the reaction temperature. Furthermore, the experiments were theoretically supported by different thermodynamic calculations. The calculated thermodynamic properties of CO2 capture reactions by (Na2TiO3, Na4Ti5O12, and Na16Ti10O28) sodium titanates were fully investigated.

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Section: Introductionmentioning

confidence: 99%

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

et al. 2014

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“…In this sense, there are several studies where hydrogen is produced as an alternative energy vector using materials that are similar to those previously mentioned for the CO 2 capture process. [20][21][22][23][24][25][26][27] Some of these mechanisms correspond to different reforming reactions [21][22][23]25,26 and biomass reactions. 24 Of course, most of these reactions produce synthetic gas, also known as syngas, which ideally is composed of H 2 and CO or CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Bifunctional application of sodium cobaltate as a catalyst and captor through CO oxidation and subsequent CO₂ chemisorption processes

et al. 2016

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“…Specifically, at low temperatures (30–100 °C), different types of materials have been tested as possible CO 2 captors, including zeolites, other organic/inorganic cage structures, activated carbons, and hydrotalcites. , However, the only current commercial materials are a few amines, which are used in aqueous CO 2 absorption processes . Nevertheless, alkaline ceramics are another group of materials that can trap CO 2 at similar low temperatures: some of these ceramics are CaO, Li 5 AlO 4 , Na 2 ZrO 3 , and Na 2 SiO 3 . − All of these ceramics have shown their capability of trapping CO 2 chemically at low temperatures (30–80 °C) in the presence of water vapor, ,, producing lithium carbonate (Li 2 CO 3 ) or sodium acid carbonate (NaHCO 3 ). However, among lithium silicates only lithium metasilicate (Li 2 SiO 3 ) has been tested under similar conditions as a CO 2 captor.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the CO₂–H₂O Chemisorption in Lithium Silicates at Low Temperatures (30–80 °C)

Alcántar-Vázquez

Herrera

González

et al. 2015

Ind. Eng. Chem. Res.

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Li 8 SiO 6 and Li 4 SiO 4 were synthesized by a solid-state reaction. Then, dynamic and isothermal thermogravimetric water vapor sorption experiments were performed using two carrier gases: N 2 and CO 2 . Initially, the Li 8 SiO 6 −H 2 O−(N 2 or CO 2 ) systems were analyzed. It was evidenced that Li 8 SiO 6 can trap water physically and chemically, producing Li−OH superficial species. When CO 2 was used as the carrier gas, Li 8 SiO 6 continued chemisorbing H 2 O but CO 2 was trapped as well, forming Li 2 CO 3 and Li 4 SiO 4 as secondary phases. On the basis of these results, the Li 4 SiO 4 −H 2 O−CO 2 system was also analyzed. The experimental results and different theoretical thermodynamic calculations confirmed that Li 8 SiO 6 can chemisorb 2 moles of CO 2 per mole of ceramic at a low temperature range (30−80°C). Finally, different CO 2 chemisorption kinetic experiments were performed to analyze and quantify the trapped CO 2 .

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The Applications of Lithium Zirconium Silicate at High Temperature for the Carbon Dioxide Sorption and Conversion to Syn-gas

Cited by 7 publications

References 32 publications

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

Bifunctional application of sodium cobaltate as a catalyst and captor through CO oxidation and subsequent CO₂ chemisorption processes

Analysis of the CO₂–H₂O Chemisorption in Lithium Silicates at Low Temperatures (30–80 °C)

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The Applications of Lithium Zirconium Silicate at High Temperature for the Carbon Dioxide Sorption and Conversion to Syn-gas

Cited by 7 publications

References 32 publications

Thermodynamic and Kinetic Analyses of the CO2 Chemisorption Mechanism on Na2TiO3: Experimental and Theoretical Evidences

Thermodynamic and Kinetic Analyses of the CO2 Chemisorption Mechanism on Na2TiO3: Experimental and Theoretical Evidences

Bifunctional application of sodium cobaltate as a catalyst and captor through CO oxidation and subsequent CO2 chemisorption processes

Analysis of the CO2–H2O Chemisorption in Lithium Silicates at Low Temperatures (30–80 °C)

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Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

Bifunctional application of sodium cobaltate as a catalyst and captor through CO oxidation and subsequent CO₂ chemisorption processes

Analysis of the CO₂–H₂O Chemisorption in Lithium Silicates at Low Temperatures (30–80 °C)