Energy storage based on SrCO3 and Sorbents—A probabilistic analysis towards realizing solar thermochemical power plants

Meroueh, Laureen; Yenduru, Karthik; Dasgupta, Arindam; Jiang, Duo; AuYeung, Nick

doi:10.1016/j.renene.2018.10.071

Cited by 19 publications

(13 citation statements)

References 52 publications

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“…Conversely, Carrillo et al reported lower oxidation rates for 5% Cu content during 30-redox cycle analyses 149 . Addition of 5% of Cu caused the appearance of two crystal phases after cycling:…”

Section: Several Cationic Dopants Have Been Explored As To Modify Chementioning

confidence: 96%

“…148 Meroueh et al evaluated two different options for CO 2 storage for the SrCO 3 system, gas compression, and CO 2 sorption, finding that the use of sorbents is more economic (153 ± 64 $kWh −1 and 48 ± 18 $kWh −1 , respectively), although a higher energy efficiency was observed for gas compression (96 vs 71%). 149 Additionally, the origin and quality of CO 2 should be also evaluated; so far, lab-scale experiments with pure CO 2 streams have been carried out. Capture of CO 2 at large scale in cement or power plants is usually based on amine (usually monoethanolamine-MEA) scrubbing, although the use of zeolites, MOFs, and polymeric membranes has been also proposed for this process.…”

Section: Carbonates-based Heat Storagementioning

confidence: 99%

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Solar Energy on Demand: A Review on High Temperature Thermochemical Heat Storage Systems and Materials

et al. 2019

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Among renewable energies, wind and solar are inherently intermittent and therefore both require efficient energy storage systems to facilitate a round-the-clock electricity production at global scale. In this context, concentrated solar power (CSP) stands out among other sustainable technologies because it offers the interesting possibility of storing energy collected from the sun as heat, by sensible, latent or thermochemical means. Accordingly, continuous electricity generation in the power block is possible even during off-sun periods, providing CSP plants with a remarkable dispatchability. Sensible heat storage has been already incorporated to commercial CSP plants. However, due to its potentially higher energy storage density, thermochemical heat storage (TCS) systems emerge as an attractive alternative for the design of next generation power plants, which are expected to operate at higher temperatures. Through these systems, thermal energy is used to drive endothermic chemical reactions, which can subsequently release the stored energy when needed through a reversible exothermic step. This review analyzes the status 2 of this prominent energy storage technology, its major challenges and future perspectives, covering in detail the numerous strategies proposed for the improvement of materials and thermochemical reactors. Thermodynamic calculations allow selecting high energy density systems, but experimental findings indicate that sufficiently rapid kinetics and long-term stability trough continuous cycles of chemical transformation are also necessary for practical implementation. In addition, selecting easy to handle materials with reduced cost and limited toxicity is crucial for large-scale deployment of this technology. In this work, the possible utilization of materials as diverse as metal hydrides, hydroxides or carbonates for thermochemical storage is discussed. Furthermore, especial attention is paid to the development of redox metal oxides, such as Co3O4/CoO, Mn2O3/Mn3O4 and perovskites of different compositions, as an auspicious new class of TCS materials due to the advantage of working with atmospheric air as reactant, avoiding the need of gas storage tanks. Current knowledge about the structural, morphological and chemical modifications of these solids, either caused during redox transformations, or induced wittingly as a way to improve their properties, is revised in detail. In addition, the design of new reactors concepts proposed for the most efficient use of TCS in concentrated solar facilities is also critically considered. Finally, strategies for the harmonic integration of these units in functioning solar power plants, as well as the economic aspects are also briefly assessed.

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Section: Several Cationic Dopants Have Been Explored As To Modify Chementioning

confidence: 96%

Section: Carbonates-based Heat Storagementioning

confidence: 99%

Solar Energy on Demand: A Review on High Temperature Thermochemical Heat Storage Systems and Materials

et al. 2019

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“…Among metal carbonates, strontium carbonate is also a very attractive material and is also considered for implementation in solar power plants (Equation ( 3)) [67,68]. A recent kinetic study focused on the investigation of the degree of the reaction, reaction rate constant, activation energy and diffusion coefficient of carbon dioxide through a series of experiments conducted between 800 and 1000 • C and under a CO 2 concentration of 5-40 vol% [69].…”

Section: Tces Systems Based On Carbonatesmentioning

confidence: 99%

Recent Advances in Thermochemical Energy Storage via Solid–Gas Reversible Reactions at High Temperature

André

Abanades

2020

Energies

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The exploitation of solar energy, an unlimited and renewable energy resource, is of prime interest to support the replacement of fossil fuels by renewable energy alternatives. Solar energy can be used via concentrated solar power (CSP) combined with thermochemical energy storage (TCES) for the conversion and storage of concentrated solar energy via reversible solid–gas reactions, thus enabling round the clock operation and continuous production. Research is on-going on efficient and economically attractive TCES systems at high temperatures with long-term durability and performance stability. Indeed, the cycling stability with reduced or no loss in capacity over many cycles of heat charge and discharge of the material is pursued. The main thermochemical systems currently investigated are encompassing metal oxide redox pairs (MOx/MOx−1), non-stoichiometric perovskites (ABO3/ABO3−δ), alkaline earth metal carbonates and hydroxides (MCO3/MO, M(OH)2/MO with M = Ca, Sr, Ba). The metal oxides/perovskites can operate in open loop with air as the heat transfer fluid, while carbonates and hydroxides generally require closed loop operation with storage of the fluid (H2O or CO2). Alternative sources of natural components are also attracting interest, such as abundant and low-cost ore minerals or recycling waste. For example, limestone and dolomite are being studied to provide for one of the most promising systems, CaCO3/CaO. Systems based on hydroxides are also progressing, although most of the recent works focused on Ca(OH)2/CaO. Mixed metal oxides and perovskites are also largely developed and attractive materials, thanks to the possible tuning of both their operating temperature and energy storage capacity. The shape of the material and its stabilization are critical to adapt the material for their integration in reactors, such as packed bed and fluidized bed reactors, and assure a smooth transition for commercial use and development. The recent advances in TCES systems since 2016 are reviewed, and their integration in solar processes for continuous operation is particularly emphasized.

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“…Meroueh et al[152] evaluated the subsystem of a 800 MWhth CaL-TCES. They compared the performance of CaL based on SrCO3 for TCES with two different options for CO2 storage, and found that CO2 stored in the form of carbonates was more economic (153±64 $kWh −1 and 48±18 $kWh −1 for CO2 stored as a gas and via an ad/absorbent, respectively).…”

mentioning

confidence: 99%

“…compression for CO2 storage for CaL-TCES systems, which has so far been found to unsuitable to reach the cost target of $15 kWhth −1 set by the U.S. DOE[152]. In addition, the source and quality of CO2 should be also investigated.…”

mentioning

confidence: 99%

Developments in calcium/chemical looping and metal oxide redox cycles for high-temperature thermochemical energy storage: A review

Yan

Wang

Clough

et al. 2020

Fuel Processing Technology

112

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Energy storage is one of the most critical factors for maximising the availability of renewable energy systems whilst delivering firm capacity on an as-and-when required basis, thus improving the balance of grid energy. Chemical and calcium looping are two technologies which are promising from both the point of view of minimising greenhouse gas emissions and because of their suitability for integrating with energy storage. A particularly promising route is to combine these technologies with solar heating, thus minimising the use of fossil fuels during the materials regeneration steps. For chemical looping, the development of mixed oxide carrier systems remains the highest impact research and development goal, and for calcium looping, minimising the decay in CO2 carrying capacity with natural sorbents appears to be the most economical option. In particular, sorbent stabilisers such as those based on Mg are particularly promising.In both cases, energy can be stored thermally as hot solids or chemically as unreacted materials, but there is a need to build suitable pilot plant demonstration units if the technology is to advance. Highlights Calcium and chemical looping can potentially be deployed at commercial scale within the next two decades. Both technologies have the potential for energy storage, either by means of sensible heat stored in solids or as chemical energy. A critical requirement for such development is construction and testing of suitable pilot and demonstration plants. Both technologies can be combined with solar power to offer particularly attractive systems with thermochemical energy storage.

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Energy storage based on SrCO3 and Sorbents—A probabilistic analysis towards realizing solar thermochemical power plants

Cited by 19 publications

References 52 publications

Solar Energy on Demand: A Review on High Temperature Thermochemical Heat Storage Systems and Materials

Solar Energy on Demand: A Review on High Temperature Thermochemical Heat Storage Systems and Materials

Recent Advances in Thermochemical Energy Storage via Solid–Gas Reversible Reactions at High Temperature

Developments in calcium/chemical looping and metal oxide redox cycles for high-temperature thermochemical energy storage: A review

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