Eco innovation strategies for promoting cleaner cement manufacturing

Ishak, Siti Aktar; Hashim, Haslenda; Ting, Tan Sie

doi:10.1016/j.jclepro.2016.06.022

Cited by 18 publications

(12 citation statements)

References 24 publications

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“…When cement erodes the kiln refractories, it contains a large amount of C 2 S, which delays the strength development of cement. The optimal range of SM is from 2.3 to 2.8 [16,49].…”

Section: Other Prediction Formulas and Chemical Factorsmentioning

confidence: 99%

“…In South Korea, a "Basic Plan for Recycling of Construction Wastes" was established to enhance the reuse of construction wastes. However, studies on recycling of construction wastes reported in the literature to date have focused predominantly on waste concrete [15,16]. Since waste concrete is highly available to improve the rate of recycling, recycled aggregate and cementitious powder have been highlighted.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical Study on the Production of Environment-Friendly Recycled Cement Using Inorganic Construction Wastes as Secondary Materials in South Korea

Kim¹,

Tae

Kim

2018

Sustainability

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The cement industry endeavors to reduce CO2 emissions from cement manufacturing by utilizing industrial by-products as alternative fuels and developing secondary concrete products from construction wastes. With these efforts, the cement industry is attempting to become more eco-friendly and reduce environmental load. This study analyzed the possibility of using inorganic construction wastes to produce environmentally friendly recycled cement using the process of proportioning. To this end, the types and production trends of recyclable construction wastes and previous studies on the development of recycled cement using such construction wastes were analyzed. Based on this analysis, recyclable inorganic construction wastes were selected, and real waste was collected. The chemical composition of each inorganic construction waste was analyzed using X-ray fluorescence, and the composition of ordinary commercial cement was used as the baseline. After the collected inorganic construction wastes were mixed, they were fired using the Bogue formula. The mineral components of clinker, which was generated from the firing process, were predicted and analyzed. Waste gypsum board and ceiling materials were shown to contain large amounts of CaO, which could substitute limestone—a key component of cement. These results suggested that if the limestone content was greater than 85 wt %, mixing inorganic construction wastes in appropriate proportions could be used to develop various types of Portland cement.

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“…When cement erodes the kiln refractories, it contains a large amount of C 2 S, which delays the strength development of cement. The optimal range of SM is from 2.3 to 2.8 [16,49].…”

Section: Other Prediction Formulas and Chemical Factorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Theoretical Study on the Production of Environment-Friendly Recycled Cement Using Inorganic Construction Wastes as Secondary Materials in South Korea

Kim¹,

Tae

Kim

2018

Sustainability

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“…Initially, only petroleum coke is used; and subsequently, a percentage of alternative fuels UTs (40%) and petroleum coke (60%), are used. [33]. Most of the alternative fuels are introduced into the preheater, where the consumption of 40% UTs is around 80% of all the fuel that is introduced, compared to 20% that is used in the kiln.…”

Section: Emission Controlmentioning

confidence: 99%

Used Tires as Fuel in Clinker Production: Economic and Environmental Implications

Castañón¹,

Pera²,

Bascompta³

et al. 2021

Preprint

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The objective of this work is to compare how the gases emitted during the manufacture of the clinker vary in a cement plant, using two types of fuel: petroleum coke and unusable tires (UTs). The study is based on a case study using real time data on more than 40 process variables. Gases are analysed from two points of the production process: Sintering Kiln, main focus of emission to the atmosphere by chimney, and Preheater. The variation of CO and NOx depending on the oxygen and fuel type is studied. The SO2 levels are also analyzed, observing a decrease when using the UTs. The quality of the Clinker has been compared depending on the fuel type. The results are compared, on the one hand, with the quality of the clinker, determined by the content of the majority (C3S, Alite) and minority (Free CaO) phases, and, on the other hand, with the Kiln sintering temperature, the most influential parameter in the productive process. It is verified that Clinker quality is maintained, regardless of the type of fuel used. Concluding that the use of UTs as fuel can generate an important economic and environmental benefit for cement companies and their environment.

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“…Además, la industria del cemento es uno de los mayores consumidores de energía del mundo, ya que en ella se invierte entre un 12 y un 15 % del total de la energía destinada para uso industrial, la cual equivale a un 30 y un 70 % del total de la energía consumida por toda la humanidad [2]- [4]. Además, es la segunda fuente antropogénica de gases efecto invernadero (GEI) [5]- [7], con cerca del 5 % del total de los GEI del planeta, solamente superada por la industria del acero [5], [8], [9].…”

Section: Introductionunclassified

Revisión de las medidas en pro de la eficiencia energética y la sostenibilidad de la industria del cemento a nivel mundial

Aristizábal-Alzate

González-Manosalva

2021

Rev. UIS ing.

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El presente artículo contempla una revisión bibliográfica de las medidas que pueden llevarse a cabo dentro de la industria de producción de cemento, para hacer un consumo racional y eficiente de los recursos energéticos demandados, y, al mismo tiempo, mejorar los indicadores de sostenibilidad, gracias a la disminución en la emisión de contaminantes y GEI. La revisión inicia con la caracterización de esta industria a nivel mundial, consumos específicos, procesos, equipos y materias primas, para establecer en cuáles etapas del proceso existen oportunidades de mejora en el consumo energético. Posterior a esto, se describen las medidas en eficiencia energética de los equipos macroconsumidores de energía, como lo es el horno de producción de clinker. Por último, se muestran posibles sustitutos a los combustibles fósiles convencionalmente usados y tecnologías que aprovechan las energías renovables, con el fin de buscar una industria eficiente y sostenible.

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Eco innovation strategies for promoting cleaner cement manufacturing

Cited by 18 publications

References 24 publications

Theoretical Study on the Production of Environment-Friendly Recycled Cement Using Inorganic Construction Wastes as Secondary Materials in South Korea

Theoretical Study on the Production of Environment-Friendly Recycled Cement Using Inorganic Construction Wastes as Secondary Materials in South Korea

Used Tires as Fuel in Clinker Production: Economic and Environmental Implications

Revisión de las medidas en pro de la eficiencia energética y la sostenibilidad de la industria del cemento a nivel mundial

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