Solar rotary kiln for continuous treatment of particle material: Chemical experiments from micro to milli meter particle size

Tescari, Stefania; Sundarraj, Pradeepkumar; Moumin, Gkiokchan; Duarte, Juan Pablo Rincon; Agrafiotis, Christos; Oliveira, Lamark de; Willsch, Christian; Roeb, Martin; Sattler, Christian

doi:10.1063/5.0029271

Cited by 11 publications

(5 citation statements)

References 22 publications

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“…On the contrary, the test was successfully concluded with the open configuration obtaining a CaCO 3 calcination degree of 24–99% with a total efficiency of 19–40% and a chemical efficiency of 8–20%. Similarly, the solar rotary kiln designed by Tescari et al was reported to achieve a total efficiency of 39% and a chemical efficiency of 17%. Regarding the indirectly irradiated configuration, an optimized version of the directly irradiated solar rotary kiln calciner of Flamant et al was proposed by Badie et al More specifically, a more even distribution inside the reactor was achieved using a stainless steel tube along the center axial line of the chamber; the tube, directly exposed to the solar radiation, acted as the indirect heating source for the reactor.…”

Section: Reactor Configurationmentioning

confidence: 95%

Review of Carbonate-Based Systems for Thermochemical Energy Storage for Concentrating Solar Power Applications: State-of-the-Art and Outlook

Raganati¹,

Ammendola²

2023

Energy Fuels

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Thermochemical energy storage (TCS) systems are receiving increasing research interest as a potential alternative to molten salts in concentrating solar power (CSP) plants. In this framework, alkaline-earth metal carbonates are very promising candidates since they can rely on wide availability, low cost, high volumetric density (>1 GJ m–3), relatively high operating temperatures (>800 °C), nontoxic and noncorrosive chemical nature, and no occurrence of any side reactions involving the production of undesired byproducts. Therefore, their reversible calcination/carbonation reaction with CO2 can be used to store/release energy in CSP plants. However, in spite of these promising features, the TCS research field is relatively new, and most of it is still limited to the lab-scale. Therefore, great research efforts are needed to bridge the gap from fundamental research to real-scale application and implementation of TCS-CSP systems. This manuscript reviews the state-of-the-art of carbonate-based systems for TCS in CSP plants. In particular, the literature has been analyzed in-depth, paying attention to (i) the materials development, with a focus on the solutions available to improve the durability of the materials (namely, the ability to withstand repeated carbonation/calcination cycles); and (ii) the design of the reactor configuration for both the solar-driven endothermic calcination and the exothermic carbonation reaction, focusing on the optimization of the reactor concept, based on the physicochemical properties and working temperatures of the reagents.

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Section: Reactor Configurationmentioning

confidence: 95%

Review of Carbonate-Based Systems for Thermochemical Energy Storage for Concentrating Solar Power Applications: State-of-the-Art and Outlook

Raganati¹,

Ammendola²

2023

Energy Fuels

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“…Thermal and thermochemical processes based on concentrating solar energy can also been combined with rotary kiln technology [152]. Concentrated solar power was introduced in rotary kilns in the 1950s [153]. Several authors argue about the ability of concentrated solar power to be able to provide high temperature renewable heat in any thermal industrial process [153][154][155][156].…”

Section: Future Trends In Rotary Kiln Technologymentioning

confidence: 99%

“…Concentrated solar power was introduced in rotary kilns in the 1950s [153]. Several authors argue about the ability of concentrated solar power to be able to provide high temperature renewable heat in any thermal industrial process [153][154][155][156]. Solar kilns would be able to overcome greenhouse gases issues, in particular CO2, coming from the production of lime [154].…”

Section: Future Trends In Rotary Kiln Technologymentioning

confidence: 99%

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Rotary kiln process: An overview of physical mechanisms, models and applications

Bisulandu

Huchet²

2023

Applied Thermal Engineering

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“…In this context particlebased options for such a system were analyzed and the relevant components were further developed. Experimental work focused on the development of suitable particles (Wokon et al, 2017a;Wokon et al, 2017b;Preisner et al, 2018), high temperature particle receivers for the thermal reduction of these particles (Tescari et al, 2020), and a particles-to-air heat exchanger for thermochemical oxidation of the reduced particles and heat recovery . According to the rationale above, manganese-iron-based redox particles were investigated experimentally in detail, as an example of earthabundant, environmental-friendly, and inexpensive thermochemical particles (Wokon et al, 2017a;Wokon et al, 2017b).…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Analysis of Candidate Oxide Materials for Thermochemical Storage in Concentrating Solar Power Systems

et al. 2021

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The thermal storage capability is an important asset of state-of-the-art concentrating solar power plants. The use of thermochemical materials, such as redox oxides, for hybrid sensible/thermochemical storage in solar power plants offers the potential for higher specific volume and mass storage capacity and as a consequence reduced levelized cost of electricity making such plants more competitive. For the techno-economic system analysis, three candidate redox materials were analyzed for their cost reduction potential: cobalt-based, manganese–iron–based, and perovskite-based oxide materials. As a reference process the use of inert commercial bauxite particles (sensible-only storage) was considered. A solar thermal power plant with a nominal power of 125 MWe and a storage capacity of 12 h was assumed for the analysis. For each storage material a plant layout was made, taking the specific thermophysical properties of the material into account. Based on this layout a particle break-even cost for the specific material was determined, at which levelized cost of electricity parity is achieved with the reference system. Cost factors mainly influenced by the material selection are storage cost and steam generator cost. The particle transport system cost has only a minor impact. The results show differences in the characteristics of the materials, for example, regarding the impact on storage size and cost and the steam generator cost. Regarding the economic potential of the candidate redox materials, the perovskite-based particles promise to have advantages, as they might be produced from inexpensive raw materials.

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Solar rotary kiln for continuous treatment of particle material: Chemical experiments from micro to milli meter particle size

Cited by 11 publications

References 22 publications

Review of Carbonate-Based Systems for Thermochemical Energy Storage for Concentrating Solar Power Applications: State-of-the-Art and Outlook

Review of Carbonate-Based Systems for Thermochemical Energy Storage for Concentrating Solar Power Applications: State-of-the-Art and Outlook

Rotary kiln process: An overview of physical mechanisms, models and applications

Techno-Economic Analysis of Candidate Oxide Materials for Thermochemical Storage in Concentrating Solar Power Systems

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