Process integration of Calcium-Looping thermochemical energy storage system in concentrating solar power plants

Ortíz, C.; Romano, Matteo Carmelo; Binotti, Marco; Chacartegui, Ricardo

doi:10.1016/j.energy.2018.04.180

Cited by 127 publications

(100 citation statements)

References 56 publications

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“…Depending on the energy release criterion, the plant can be configured as a peaker (< 6 h of storage), intermediate or baseload plant. Despite the fact that longterm energy storage is a key advantage of TCES systems (Pardo et al, 2014), it was possible to operate the energy storage at high temperatures (Ortiz et al, 2018a) with a similar solar multiple as in current molten salts-based power plants (Casati et al, 2015). High-temperature storage simplifies the CSP-CaL process scheme.…”

Section: Solids Storagementioning

confidence: 99%

“…In this regard, it is important to address the size of the vessels needed for solids storage, which determines capital costs. To this end, a recent work (Ortiz et al, 2018a) proposed an equation to estimate the energy density of the system considering the particles' porosity and their packing density, process characteristics (pressure and temperature in the reactors and storage vessels) and conversion efficiency.…”

Section: Solids Storagementioning

confidence: 99%

“…The key advantages of TCES systems in comparison with traditional and sensible heatbased energy storage are the higher energy density and its capacity for long-term energy storage (Pardo et al, 2014). On the other hand, depending on the TCES system and the operation conditions, the energy consumption by auxiliary equipment could be higher than in commercial energy storage systems (Bayon et al, 2018;Ortiz et al, 2018a).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Scaling-up the Calcium-Looping Process for CO<sub>2</sub> Capture and Energy Storage

Ortíz

Chacartegui

Pérez‐Maqueda

et al. 2021

KONA

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The Calcium-Looping (CaL) process has emerged in the last years as a promising technology to face two key challenges within the future energy scenario: energy storage in renewable energy-based plants and CO 2 capture from fossil fuel combustion. Based on the multicycle calcination-carbonation reaction of CaCO 3 for both thermochemical energy storage and post-combustion CO 2 capture applications, the operating conditions for each application may involve remarkably different characteristics regarding kinetics, heat transfer and material multicycle activity performance. The novelty and urgency of developing these applications demand an important effort to overcome serious issues, most of them related to gas-solids reactions and material handling. This work reviews the latest results from international research projects including a critical assessment of the technology needed to scale up the process. A set of equipment and methods already proved as well as those requiring further demonstration are discussed. An emphasis is put on critical equipment such as gas-solids reactors for both calcination and carbonation, power block integration, gas and solids conveying systems and auxiliary equipment for both energy storage and CO 2 capture CaL applications.

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Section: Solids Storagementioning

confidence: 99%

Section: Solids Storagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Scaling-up the Calcium-Looping Process for CO<sub>2</sub> Capture and Energy Storage

Ortíz

Chacartegui

Pérez‐Maqueda

et al. 2021

KONA

View full text Add to dashboard Cite

show abstract

“…(2) In the carbonation or reverse calcination step: the solid CaO is removed from the calciner and fed into the carbonator; it is cooled to approximately 650 • C and is brought into contact with a flue gas containing a low to medium concentration of CO 2 ; the CaO and CO 2 react to form CaCO 3 , thus reducing the CO 2 concentration in the flue gas to a level suitable for emission to the atmosphere. Calcium looping may present interesting potential for integration with the cement industry, especially if limestone calcination can be conveniently carried out using direct solar heat and the auto-thermal re-carbonation can be exploited for thermochemical energy storage applications or post-combustion CO 2 capture and utilisation [56][57][58][59].…”

Section: Integration Of Solar Heat In the Regenerative Calcium Cyclementioning

confidence: 99%

Solar Heat for Materials Processing: A Review on Recent Achievements and a Prospect on Future Trends

Rosa

2019

ChemEngineering

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Considering works published in the literature for more than a decade (period from January 2008 till June 2019), this paper provides an overview of recent applications of the so-called “solar furnaces”, their reactors, process chambers and related devices, aiming specifically at the processing of (solid) materials. Based on the author’s own experience, some prospects on future trends are also presented. The aim of this work is to demonstrate the tremendous potentialities of the usage of solar heat for materials processing, but also to reveal the necessity of further developing solar-driven high-temperature technologies (which are required to displace the use of electricity or natural gas). In particular, it is essential to improve the temperature homogeneity conditions inside reaction chambers for materials processing using solar heat. Moreover, new innovative modular systems, practical and flexible, for capture, concentration, control and conduction of concentrated solar radiation are suggested. Solar thermal technologies for the production of electricity, as well as solar thermochemical processes for production of gases or liquids, are outside the scope of this review.

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“…The systems based on carbonates are also relevant for TCES application. Calcium [15][16][17][18] and strontium carbonate [18,19] systems are promising but still require structure stabilization to hinder sintering at high reaction temperatures. In the specific case of single metal oxides, air can be used as heat transfer fluid (Equations (2) and 3…”

Section: Ab(s) + Heat (Csp)mentioning

confidence: 99%

Mixed Metal Oxide Systems Applied to Thermochemical Storage of Solar Energy: Benefits of Secondary Metal Addition in Co and Mn Oxides and Contribution of Thermodynamics

2018

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Thermochemical energy storage is promising for the long-term storage of solar energy via chemical bonds using reversible redox reactions. The development of thermally-stable and redox-active materials is needed, as single metal oxides (mainly Co and Mn oxides) show important shortcomings that may delay their large-scale implementation in solar power plants. Drawbacks associated with Co oxide concern chiefly cost and toxicity issues while Mn oxide suffers from slow oxidation kinetics and poor reversibility. Mixed metal oxide systems could alleviate the above-mentioned issues, thereby achieving improved materials characteristics. All binary oxide mixtures of the Mn-Co-Fe-Cu-O system are considered in this study, and their properties are evaluated by experimental measurements and/or thermodynamic calculations. The addition of Fe, Cu or Mn to cobalt oxide decreased both the oxygen storage capacity and energy storage density, thus adversely affecting the performance of Co3O4/CoO. Conversely, the addition of Fe, Co or Cu (with added amounts above 15, 40 and 30 mol%, respectively) improved the reversibility, re-oxidation rate and energy storage capacity of manganese oxide. Computational thermodynamics was applied to unravel the governing mechanisms and phase transitions responsible for the materials behavior, which represents a powerful tool for predicting the suitability of mixed oxide systems applied to thermochemical energy storage.

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Process integration of Calcium-Looping thermochemical energy storage system in concentrating solar power plants

Cited by 127 publications

References 56 publications

Scaling-up the Calcium-Looping Process for CO<sub>2</sub> Capture and Energy Storage

Scaling-up the Calcium-Looping Process for CO<sub>2</sub> Capture and Energy Storage

Solar Heat for Materials Processing: A Review on Recent Achievements and a Prospect on Future Trends

Mixed Metal Oxide Systems Applied to Thermochemical Storage of Solar Energy: Benefits of Secondary Metal Addition in Co and Mn Oxides and Contribution of Thermodynamics

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