Decarbonising the lime industry: State-of-the-art

Marco Simoni, Mathew D. Wilkes, Solomon Brown, John L. Provis, Hajime Kinoshita and Theodore Hanein

Renewable and Sustainable Energy Reviews, 2022, vol. 168, issue C

Abstract: The thermal treatment of limestone (mainly CaCO3) to produce lime (CaO) is a major contributor to CO2 emissions and the literature on decarbonising the lime industry is scarce. Subsequent hydration of lime would lead to the synthesis of slaked/hydrated lime Ca(OH)2; the production of a tonne of Ca(OH)2 emits ∼1.2 tonnes of CO2 arising mainly from the process chemistry and fossil fuel combustion. Carbon Capture & Storage (CCS) technologies are currently believed to have the highest potential to mitigate these CO2 emissions, assuming that the thermal calcination of CaCO3 is unavoidable. Despite intensive research efforts and development, CCS technologies cannot be industrially applied yet due to their limited efficiency and the associated capital and operational costs.

Keywords: Lime; Sustainable manufacturing; Industry decarbonisation; Kiln; Carbon capture and storage (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (2)

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DOI: 10.1016/j.rser.2022.112765

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