Energy analysis of CaCO3 calcination with CO2 capture

Song, Lin; Kiga, Takashi; Wang, Yin; Nakayama, Katsuhiro

doi:10.1016/j.egypro.2011.01.062

Cited by 65 publications

(29 citation statements)

References 6 publications

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“…There are inherent thermodynamic advantages to this process, compared to other post-combustion CCS technologies, and a number of researchers have determined that this process imposes an efficiency penalty on a power station significantly lower than that imposed by either oxyfuel combustion or MEA scrubbing, at 6-8% points, as opposed to 10 -12 points for the latter technologies. (Romeo et al, 2010, Lin et al, 2011, Daval et al, 2011, Martinez et al, 2012 One issue which has received significant attention during previous research is that the ability of CaO produced from natural limestone reduces significantly (from ~ 0.7 mol CO2/mol CaO) when it is first used to capture CO2 to a significantly lower level (~0.1 mol CO2/mol CaO) after 30 cycles of calcination and carbonation (Fennell et al, 2007a, Blamey et al, 2010a) (hereafter, the number of moles of CO2 reacted per mole of CaO will be referred to as the carrying capacity of the limestone) .…”

Section: Introductionmentioning

confidence: 99%

Additive effects of steam addition and HBr doping for CaO-based sorbents for CO 2 capture

González

Blamey

Al-Jeboori

et al. 2016

Chemical Engineering and Processing: Process Intensification

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Calcium looping is a developing CO2 Capture and Storage technology that employs the reversible carbonation of CaO (potentially derived from natural limestone). The CO2 uptake potential of CaO particles reduces upon repeated reaction, largely through loss of reactive surface area and densification of particles. Doping of particles has previously been found to reduce the rate of decay of CO2 uptake, as has the introduction of steam into calcination and carbonation stages of the reaction. Here, the synergistic effects of steam and doping, using an HBr solution, of 5 natural limestones have been investigated. The enhancement to the CO2 uptake was found to be additive, with CO2 uptake after 13 cycles found to be up to 3 times higher for HBr-doped limestones subjected to cycles of carbonation and calcination in the presence of 10% steam, in comparison to natural limestone cycled in the absence of steam. A qualitative discussion of kinetic data is also presented.

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Section: Introductionmentioning

confidence: 99%

Additive effects of steam addition and HBr doping for CaO-based sorbents for CO 2 capture

González

Blamey

Al-Jeboori

et al. 2016

Chemical Engineering and Processing: Process Intensification

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“…A biomass boiler is needed in the Ca(OH) 2 scenario and expenses for capital and labor therefore increased. Heat cost in the Ca(OH) 2 scenario was slightly increased, due to the need for 178 kJ to convert 1 mol CaCO 3 into CaO and CO 2 . The price of Ca(OH) 2 is only $70/ton (see Appendix, Table A4a), and, with a recycling recovery of about 85%, the estimated chemical cost for Ca(OH) 2 protein extraction was only $2/ton GTR (Table ).…”

Section: Sustainability Evaluationmentioning

confidence: 88%

Sustainable scenarios for alkaline protein extraction from leafy biomass using green tea residue as a model material

Zhang

Slegers

Wisse

et al. 2018

Biofuels Bioprod Bioref

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Leaf protein can be extracted cost‐efficiently using 0.1 mol dm−3 NaOH, but this process is less sustainable due to the generation of large amounts of sodium salts. KOH or Ca(OH)2 are considered as replacements for NaOH, as these salts can be reused. This work evaluates the economic and environmental sustainability of weak alkaline pectin extraction followed by KOH enhanced protein extraction, and Viscozyme® L‐aided pectin extraction followed by Ca(OH)2 enhanced protein extraction. The evaluations are made for green tea residue and are compared to related processes using NaOH. The predicted profits using KOH are comparable to those using NaOH. Environmental sustainability improves for all impact categories in the case of KOH extraction. Further environmental benefits are obtained by substituting conventional K fertilizer with the K‐rich salty waste water from the extraction process. The profits of the process using Ca(OH)2 are highly dependent on the extraction yield of the protein product. Protein extraction yields using Ca(OH)2 need to be higher than 70% to be more profitable than the same process with NaOH. The environmental benefits of Ca(OH)2 extraction include the absence of salty waste water and the net production of heat. This is accompanied by increased electricity consumption. Thus, the impact categories of climate change, fossil and water depletion, and particulate matter formation worsen. Photochemical oxidant formations remain the same, while the other impacts improve. This work has shown the potential and bottlenecks of NaOH, KOH and Ca(OH)2 protein extraction on different types of biomass in terms of environmental and economic sustainability. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…In addition, Li−CO 2 /O 2 batteries have the potential to be a revolutionary solution for carbon capture and electrical energy generation among various methodologies, including chemical and physical methods, currently under development . However, the discharge product Li 2 CO 3 is difficult to decompose and may result in a large overpotential.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, LiÀ CO 2 /O 2 batteries have the potential to be a revolutionary solution for carbon capture and electrical energy generation among various methodologies, including chemical and physical methods, currently under development. [10][11][12] However, the discharge product Li 2 CO 3 is difficult to decompose and may result in a large overpotential. Surprisingly, a high dielectric medium can realize the reversible reaction of Li 2 CO 3 , which provides a mechanism for the development of a reusable Li-air battery.…”

Section: Introductionmentioning

confidence: 99%

High‐Capacity and Long‐Cycle Lifetime Li−CO₂/O₂ Battery Based on Dandelion‐like NiCo₂O₄ Hollow Microspheres

et al. 2019

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As a promising energy storage technology, Li−CO2/O2 battery with ultrahigh discharge capacities have received much attention, reaching capacities three times that of Li−O2 batteries. Herein, using an excellent catalyst, NiCo2O4 designed as a 3D dandelion‐like hollow nanostructure, a Li−CO2/O2 battery is systematically investigated to understand how the reaction mechanisms are affected by CO2. With CO2 stabilization, the batteries could achieve a specific discharge capacity as high as 22000 mAh/g and a long‐term cycling performance of up to 140 cycles without apparent deterioration. In addition, the intrinsic mechanism of the current density influence is explored based on the Li2CO3 morphology evolution. Superoxide anion radical species (O2.− ) were identified to be rapidly consumed by CO2, which dramatically enhances the stability of Li−O2 batteries. The results indicate that the NiCo2O4 nanocatalyst can efficiently inhibit Li2CO3 aggregation and realize the maximum utilization of active sites. The results confirm that the 3D dandelion‐like NiCo2O4 catalyst can be a potential cathode for Li−CO2/O2 batteries.

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Energy analysis of CaCO3 calcination with CO2 capture

Cited by 65 publications

References 6 publications

Additive effects of steam addition and HBr doping for CaO-based sorbents for CO 2 capture

Additive effects of steam addition and HBr doping for CaO-based sorbents for CO 2 capture

Sustainable scenarios for alkaline protein extraction from leafy biomass using green tea residue as a model material

High‐Capacity and Long‐Cycle Lifetime Li−CO₂/O₂ Battery Based on Dandelion‐like NiCo₂O₄ Hollow Microspheres

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Energy analysis of CaCO3 calcination with CO2 capture

Cited by 65 publications

References 6 publications

Additive effects of steam addition and HBr doping for CaO-based sorbents for CO 2 capture

Additive effects of steam addition and HBr doping for CaO-based sorbents for CO 2 capture

Sustainable scenarios for alkaline protein extraction from leafy biomass using green tea residue as a model material

High‐Capacity and Long‐Cycle Lifetime Li−CO2/O2 Battery Based on Dandelion‐like NiCo2O4 Hollow Microspheres

Contact Info

Product

Resources

About

High‐Capacity and Long‐Cycle Lifetime Li−CO₂/O₂ Battery Based on Dandelion‐like NiCo₂O₄ Hollow Microspheres