First assessment of Li 2 O–Bi 2 O 3 ceramic oxides for high temperature carbon dioxide capture

Briz-López, Eva Marina; Ramírez-Moreno, Margarita J.; Romero‐Ibarra, Issis C.; Gómez-Yáñez, Carlos; Pfeiffer, Heriberto; Ortíz-Landeros, José

doi:10.1016/j.jechem.2016.05.001

Cited by 12 publications

(10 citation statements)

References 34 publications

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“…Even when the Co—O vibration band is detected using ATR‐FTIR, this can be from unreacted NaCoO 2 or a cobalt oxide. Therefore, in reactions and , the formation of a cobalt oxide is proposed, as for this type of alkaline ceramics, CO 2 capture always leads to the formation of carbonates and the corresponding metal oxide . As stated in the literature, NaCoO 2 does not chemisorb CO 2 at temperatures lower than 200 °C, on dry conditions.…”

Section: Resultsmentioning

confidence: 89%

“…Within the context of using alkaline elements for CO 2 capture, as it is previously described for Na 2 CO 3 , different alkaline ceramics have shown high CO 2 sorption capacities as well as good kinetics, selectivity, and cyclability in a wide temperature range . In these materials, CO 2 capture at the low‐temperature range and in dry conditions is usually poor, achieving improvements only when the particle surface area is highly increased or when their chemical surface is modified . Nevertheless, it has been reported that these ceramics are able to trap more CO 2 at low temperatures in the presence of water vapor .…”

Section: Introductionmentioning

confidence: 99%

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CO₂—H₂O Capture and Cyclability on Sodium Cobaltate at Low Temperatures (30–80 °C): Experimental and Theoretical Analysis

2019

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Sodium cobaltate (NaCoO2) is analyzed for the CO2 cyclic carbonation–decarbonation process at low temperatures (30–80 °C) with relative humidity (RH) values between 0% and 80%, using water vapor as a catalytic intermediate. The presence of H2O clearly enhances the CO2 capture at T < 100 °C, compared with dry conditions, where the amount of CO2 captured increases as a function of RH. These improvements are attributed to the formation of NaHCO3 and Na2CO3 during carbonation. In the case of NaHCO3, water vapor becomes a part of carbonation, favoring reactivity. After the carbonation analysis, the decarbonation process is analyzed using a N2 flow, where results evidence that only NaHCO3 decomposition takes place at low temperatures, producing NaOH and CO2. This result indicates that NaCoO2 can be partially regenerated, suggesting a possible CO2 cyclic carbonation. CO2 carbonation–decarbonation tests are performed, confirming the cyclic capacity and stability. Moreover, the NaCoO2 sample is modified by adding different transition metals (Fe, Cu, and Ni) to improve CO2—H2O sorption under similar physicochemical conditions. Results indicate that Fe‐containing samples present the best properties. Finally, the effect of CO2 partial pressure on NaCoO2 and Fe‐containing samples is analyzed using similar RHs.

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Section: Resultsmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

CO₂—H₂O Capture and Cyclability on Sodium Cobaltate at Low Temperatures (30–80 °C): Experimental and Theoretical Analysis

2019

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“…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

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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.

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“…During the past decades, several CO 2 capture and storage (CCS) technologies are being developed to reduce global warming caused by the CO 2 emission [1][2][3][4][5] . Among them, chemical looping combustion (CLC), utilizing lattice oxygen associated with active metals in oxygen carriers (OC) to combust carbonaceous fuels in a cyclic redox mode, offers an energetically efficient and elegant route toward fossil fuel combustion with inherent CO 2 separation [5][6][7][8][9][10] .…”

Section: Introductionmentioning

confidence: 99%

Fe-substituted Ba-hexaaluminate with enhanced oxygen mobility for CO2 capture by chemical looping combustion of methane

Huang

Tian

Zhu

et al. 2019

Journal of Energy Chemistry

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First assessment of Li 2 O–Bi 2 O 3 ceramic oxides for high temperature carbon dioxide capture

Cited by 12 publications

References 34 publications

CO₂—H₂O Capture and Cyclability on Sodium Cobaltate at Low Temperatures (30–80 °C): Experimental and Theoretical Analysis

CO₂—H₂O Capture and Cyclability on Sodium Cobaltate at Low Temperatures (30–80 °C): Experimental and Theoretical Analysis

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

Fe-substituted Ba-hexaaluminate with enhanced oxygen mobility for CO2 capture by chemical looping combustion of methane

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First assessment of Li 2 O–Bi 2 O 3 ceramic oxides for high temperature carbon dioxide capture

Cited by 12 publications

References 34 publications

CO2—H2O Capture and Cyclability on Sodium Cobaltate at Low Temperatures (30–80 °C): Experimental and Theoretical Analysis

CO2—H2O Capture and Cyclability on Sodium Cobaltate at Low Temperatures (30–80 °C): Experimental and Theoretical Analysis

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

Fe-substituted Ba-hexaaluminate with enhanced oxygen mobility for CO2 capture by chemical looping combustion of methane

Contact Info

Product

Resources

About

CO₂—H₂O Capture and Cyclability on Sodium Cobaltate at Low Temperatures (30–80 °C): Experimental and Theoretical Analysis

CO₂—H₂O Capture and Cyclability on Sodium Cobaltate at Low Temperatures (30–80 °C): Experimental and Theoretical Analysis