Techno-economic evaluation of indirect carbonation for CO2 emissions capture in cement industry: A system dynamics approach

Proaño, Laura; Sarmiento, Alfonso T.; Figueredo, Manuel; Cobo, Martha

doi:10.1016/j.jclepro.2020.121457

Cited by 90 publications

(33 citation statements)

References 35 publications

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“…Overall cement production is estimated to increase from 3.27 billion metric tons in 2010 to 4.83 billion metric tons by 2030 [1]. Cement production is responsible for about 8% of the anthropogenic CO 2 emissions [2]. The Intergovernmental Panel on Climate Change (IPCC) proposes that global anthropogenic CO 2 emissions need to lower by 45% from 2010 by 2030 to limit global warming to 1.5 • C [3].…”

Section: Introductionmentioning

confidence: 99%

Formulation of Alkali-Activated Slag Binder Destined for Use in Developing Countries

et al. 2020

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Worldwide cement production is around 4.2 billion tons, and the fabrication of one ton of ordinary Portland cement emits around 900 kg of CO2. Blast furnace slag (BFS) is a byproduct used to produce alkali-activated materials (AAM). BFS production was estimated at about 350 million tons in 2018, and the BFS reuse rate in construction materials of developing countries is low. AAM can reduce CO2 emissions in relation to Portland cement materials: Its use in construction would be a golden opportunity for developing countries in forthcoming decades. The present research aims to formulate AAM destined for future applications in developing countries. Two activators were used: NaOH, Na2CO3, and a mixture of both. The results showed that compressive strengths within the 42–56 MPa range after 28 curing days were obtained for the Na2CO3-activated mortars. The characterization analysis confirmed the presence of hydrotalcite, carbonated phases, CSH and CASH. The economic study showed that Na2CO3 was the cheapest activator in terms of the relative cost per ton and MPa of manufactured mortars. Finally, the environmental benefits of mortars based on this reagent were evidenced, and, in terms of kgCO2 emissions per ton and MPa, the mortars with Na2CO3 yielded 50% lower values than with NaOH.

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Section: Introductionmentioning

confidence: 99%

Formulation of Alkali-Activated Slag Binder Destined for Use in Developing Countries

et al. 2020

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“…It is a powerful tool to assess the technical and economic performance of processes that consists of quantifying the design of the process plant and determining the associated costs and revenues of its operation. Many works have implemented TEA on CCU processes (Collodi et al, 2017;Michailos et al, 2019;Pé rez-Fortes et al, 2014;Proañ o et al, 2020). Recently, Zimmermann et al…”

Section: Economicmentioning

confidence: 99%

Process modeling, techno-economic assessment, and life cycle assessment of the electrochemical reduction of CO2: a review

et al. 2021

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The electrochemical reduction of CO 2 has emerged as a promising alternative to traditional fossil-based technologies for the synthesis of chemicals. Its industrial implementation could lead to a reduction in the carbon footprint of chemicals and the mitigation of climate change impacts caused by hard-to-decarbonize industrial applications, among other benefits. However, the current low technology readiness levels of such emerging technologies make it hard to predict their performance at industrial scales. During the past few years, researchers have developed diverse techniques to model and assess the electrochemical reduction of CO 2 toward its industrial implementation. The aim of this literature review is to provide a comprehensive overview of techno-economic and life cycle assessment methods and pave the way for future assessment approaches. First, we identify which modeling approaches have been conducted to extend analysis to the production scale. Next, we explore the metrics used to evaluate such systems, regarding technical, environmental, and economic aspects. Finally, we assess the challenges and research opportunities for the industrial implementation of CO 2 reduction via electrolysis.

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“…The cement industry is responsible for around 12%-15% of the total energy used in the whole industrial sector worldwide (Madlool et al, 2011), for a consumption level of 430 MJ Mt −1 of cement, accounting for 40% of the total operational costs (Usón et al, 2013). Moreover, 8% of carbon dioxide (CO 2 ) emissions are contributed by cement manufacturing globally (Proaño et al, 2020). However, several studies have showed a reduction of around 5% worldwide in the last few years as a result of improved energy efficiency and the use of alternative fuels (Hashem et al, 2019;Reza et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Refuse-derived fuel potential production for co-combustion in the cement industry in Algeria

et al. 2021

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As in many developing countries, municipal solid waste (MSW) management is one of the most significant challenges facing urban communities in Algeria. The effective management of solid waste involves the application of various treatment methods, and technologies to ensure the protection of public health and the environment. This research work aimed to examine potential production and utilization of refuse-derived fuel (RDF) from MSW to be used as a substitute fuel in cement kilns in Algeria. After receiving the input waste, sieves were used to categorize MSW according to size. The waste fractions >80 mm were subjected to a drying process in an open-air area and had been turned periodically in order to increase the dry matter (DM). A cost study was performed to evaluate the environmental and economic savings of RDF utilization in the cement industry. At the end of the drying process, as a consequence of the waste moisture reduction, the low heating value was found to be 16 MJ kg−1, and the DM 87%. Concerning heavy metal content, their concentrations were within the limits set by the European Committee for Standardization (CEN)/TC 343 standardization. The chlorine content was around 0.37% to 0.80%. The feasibility study of adding RDF as a substitute fuel in the cement industry showed that when 15% of RDF is used, the RDF consumption will be 4.7 metric tonnes (Mt) h−1, which will save 4347.2 Nm3 h−1 of natural gas and 0.3 Mt h−1 in carbon dioxide emissions, with a net gas cost saving of 65 USD h−1.

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Techno-economic evaluation of indirect carbonation for CO2 emissions capture in cement industry: A system dynamics approach

Cited by 90 publications

References 35 publications

Formulation of Alkali-Activated Slag Binder Destined for Use in Developing Countries

Formulation of Alkali-Activated Slag Binder Destined for Use in Developing Countries

Process modeling, techno-economic assessment, and life cycle assessment of the electrochemical reduction of CO2: a review

Refuse-derived fuel potential production for co-combustion in the cement industry in Algeria

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