Steam-enhanced calcium-looping performance of limestone for thermochemical energy storage: The role of particle size

Individual effects of atmospheric water vapor and carbon dioxide on the kinetics of the thermal decomposition of granular malachite

“…34,35 The other is attributed to the enhancement of crystal growth of the solid product by the atmospheric water vapor, and the formation of the product layer with more interstices that makes the diffusional removal of the product gases easier. 36,37 Thus, the kinetics were formally described as functions of temperature and p (H 2 O) considering the water vapor as a catalyst. 30,32,33 For the thermal decomposition of large and compact agglomerates of crystalline powders, such as granular particles and pellets, additional significant physico-geometrical constraints are expected.…”

Acceleration Effect of Atmospheric Water Vapor on the Thermal Decomposition of Calcium Carbonate: A Comparison of Various Resources and Kinetic Parameterizations

“…) ,− and sophistication of the reaction conditions (heating–cooling programs, atmospheric conditions, etc. ). − An advanced understanding of the heterogeneous kinetics of the forward and reverse reactions in eq can strongly support the establishment of a more sophisticated Ca-looping system for CO 2 absorption and thermal energy storage.…”

Effect of steam on heat storage and attrition performance of limestone under fluidization during CaO/CaCO3 heat storage cycles

“…The limestone calcined under steam and carbonated under 20% steam/80% CO 2 exhibits the highest BET surface area and BJH pore volume, 3.72 m 2 g −1 and 0.0156 cm 3 g −1 , respectively. Arcenegui-Troya et al 24,53,55 performed heat storage tests in a fixed bed reactor and found that steam in the calcination stage and carbonation stage improved the surface structure of the calcined limestone to facilitate the heat storage performance of the limestone. Their results are consistent with those in this work.…”