Performance of Li4SiO4 Material for CO2 Capture: A Review

Yan, Xianyao; Li, Yingjie; Ma, Xiaotong; Zhao, Jianli; Wang, Zeyan

doi:10.3390/ijms20040928

Cited by 61 publications

(35 citation statements)

References 82 publications

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“…2. Chemical looping separation of carbon dioxide [8,[15][16][17][18][19][20][21][22]. Chemical looping CO2 separation applies an (earth) alkali metal oxide (MO) as sorbent, to reversibly retain and set free CO2 (Figure 1b).…”

Section: Concept Of Chemical Loopingmentioning

confidence: 99%

Intensification of Chemical Looping Processes by Catalyst Assistance and Combination

Poelman

Galvita

2021

Catalysts

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Chemical looping can be considered a technology platform, which refers to one common basic concept that can be used for various applications. Compared with a traditional catalytic process, the chemical looping concept allows fuels’ conversion and products’ separation without extra processes. In addition, the chemical looping technology has another major advantage: combinability, which enables the integration of different reactions into one process, leading to intensification. This review collects various important state-of-the-art examples, such as integration of chemical looping and catalytic processes. Hereby, we demonstrate that chemical looping can in principle be implemented for any catalytic reaction or at least assist in existing processes, provided that the targeted functional group is transferrable by means of suitable carriers.

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Section: Concept Of Chemical Loopingmentioning

confidence: 99%

Intensification of Chemical Looping Processes by Catalyst Assistance and Combination

Poelman

Galvita

2021

Catalysts

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“…Even though other metal oxides can react with CO 2 at high temperatures (Kyaw et al, 1996;Kato et al, 1999;Cot-Gores et al, 2012), the reactivity of Li 4 SiO 4 is relatively high. In our earlier research work, Li 4 SiO 4 was con rmed to have su cient performance as a TcES material at 700°C (Takasu et al, 2017(Takasu et al, , 2018 (Yan et al, 2019). For instance, Seggiani et al (2013) reported the sorption performance of Li 4 SiO 4 with di erent ratios (10-30 mass%) of K 2 CO 3 and Na 2 CO 3 , under 4% CO 2 concentration at 580°C and the sample with 30 mass% of K 2 CO 3 exhibited higher sorption capacity and durability than pure Li 4 SiO 4 (Yan et al, 2019).…”

Section: Introductionmentioning

confidence: 98%

“…In our earlier research work, Li 4 SiO 4 was con rmed to have su cient performance as a TcES material at 700°C (Takasu et al, 2017(Takasu et al, , 2018 (Yan et al, 2019). For instance, Seggiani et al (2013) reported the sorption performance of Li 4 SiO 4 with di erent ratios (10-30 mass%) of K 2 CO 3 and Na 2 CO 3 , under 4% CO 2 concentration at 580°C and the sample with 30 mass% of K 2 CO 3 exhibited higher sorption capacity and durability than pure Li 4 SiO 4 (Yan et al, 2019). Yan et al (2019) also investigated the sorption performance of Li 4 SiO 4 , using a small mix (1-10 mass% and 5-20 mass%) of K 2 CO 3 and Na 2 CO 3 under 15% of CO 2 at 550°C.…”

Section: Introductionmentioning

confidence: 98%

“…For instance, Seggiani et al (2013) reported the sorption performance of Li 4 SiO 4 with di erent ratios (10-30 mass%) of K 2 CO 3 and Na 2 CO 3 , under 4% CO 2 concentration at 580°C and the sample with 30 mass% of K 2 CO 3 exhibited higher sorption capacity and durability than pure Li 4 SiO 4 (Yan et al, 2019). Yan et al (2019) also investigated the sorption performance of Li 4 SiO 4 , using a small mix (1-10 mass% and 5-20 mass%) of K 2 CO 3 and Na 2 CO 3 under 15% of CO 2 at 550°C. It was con rmed that both additives enhanced reaction rates and capacities of Li 4 SiO 4 , and the sample with 5 mass% of K 2 CO 3 and 10 mass% of Na 2 CO 3 were the optimum addition ratios under the measurement conditions.…”

Section: Introductionmentioning

confidence: 99%

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Additive Effect on Lithium Silicate Pellets for Thermochemical Energy Storage

Takasu

Nihei

Kim

et al. 2021

J. Chem. Eng. Japan / JCEJ

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The global increase in energy consumption has caused serious environmental problems, especially CO 2 emissions. In general, CO 2 is produced from the combustion and oxidation reactions at high temperature. The use of thermochemical energy storage is considered an appropriate approach to enhance the utilization of surplus or waste heat from high temperature industrial processes. So far, there are very few reports that have been published for high temperature thermochemical energy storage. In this study, high temperature thermochemical energy storage based on the lithium orthosilicate/carbon dioxide (Li 4 SiO 4 /CO 2 ) reaction was developed. A new candidate storage material was fabricated with four di erent concentrations of the potassium carbonate (K 2 CO 3 ) additive (0, 6, 11, 17, and 33 mol%), in the shape of pellets, from the point of energy density view. On the basis of the results of the carbonation and decarbonation experiments, the highest thermal output and storage densities were recorded for a pellet possessing a 11 mol% concentration of the K 2 CO 3 additive. Furthermore, this pellet, LK11, showed cyclic ability with repeat reactions over twenty cycles. Thus, LK11 pellet can be used as a thermochemical storage material because of its ability to store and release heat at high temperatures, ranging from 550 to 700°C.

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“…To increase the useful energy of these system and decrease the operating costs, intermediate-temperature and high-temperature sorbents, including hydrotalcites [4], MgO-based sorbents [5], calcium oxides [6][7][8][9], and ceramic materials [10][11][12], have been examined as alternative sorbents because these materials can directly separate CO2 from hot flue gases in thermal power or sorption-enhanced steam methane reforming (SE-SMR) processes. Alkaline ceramic materials [13], especially lithium orthosilicate (Li4SiO4) [14,15], appear to be attractive sorbents because they have high theoretical CO2 capture capacities (36.7 wt.%), and a consistent recyclability.…”

Section: Introductionmentioning

confidence: 99%

Sorption of CO2 on NaBr co-doped Li4SiO4 ceramics: Structural and kinetic analysis

Wang

Zhao

Clough

et al. 2019

Fuel Processing Technology

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Structurally modified and improved NaBr co-doped Li4SiO4 ceramics were developed for CO2 absorption in low-CO2-concentration atmospheres. Pure and NaCldoped Li4SiO4 ceramics were also prepared for comparison. The samples were analyzed by X-ray diffraction, Scanning Electron Microscopy, N2 adsorption, X-ray photoelectron spectroscopy, differential scanning calorimetry, and thermogravimetric analyses (dynamic and isothermal). The sorption kinetics were obtained using a double exponential model. The results showed that both Na and Br can be introduced into the Li4SiO4 structure and doped on Li and oxygen sites, respectively. The doped sample presented a Li2O-enriched surface, guaranteeing abundant Li-O sites and our significantly different from previous anionic (CO3, F and Cl) doping of Li4SiO4, Br doping also generated macroporous features with small particle size. These favorable characteristics promoted the surface chemisorption kinetics. Moreover, DSC analysis confirmed the formation of the molten phases during CO2 absorption, which helps improve the lithium diffusion kinetics. Here, 0.1 mol NaBr doping was used to reach a maximum absorption capacity (>30.0 wt.%) in 15 vol.% CO2, suggesting that NaBrdoped Li4SiO4 ceramics have great potential for CO2 capture at high temperature.

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Performance of Li4SiO4 Material for CO2 Capture: A Review

Cited by 61 publications

References 82 publications

Intensification of Chemical Looping Processes by Catalyst Assistance and Combination

Intensification of Chemical Looping Processes by Catalyst Assistance and Combination

Additive Effect on Lithium Silicate Pellets for Thermochemical Energy Storage

Sorption of CO2 on NaBr co-doped Li4SiO4 ceramics: Structural and kinetic analysis

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