Design of solar cement plant for supplying thermal energy in cement production

Sahoo, Niranjan; Kumar, Anil; Samsher,

doi:10.1016/j.jclepro.2023.139151

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…It was projected that by 2050, the annual production of cement will increase to about 6 billion tons [4]. However, the production of cement emits carbon dioxide and other gases that contribute to environmental pollution [5]. Specifically, carbon dioxide emission during cement production primarily originated from the production of clinker [6].…”

Section: Introductionmentioning

confidence: 99%

“…Specifically, carbon dioxide emission during cement production primarily originated from the production of clinker [6]. Statistics show that the production of one ton of cement clinker results in the emission of 0.9 to 1 ton of carbon dioxide [5], with the global cement industry contributing to 8% of total carbon emissions [7], causing severe environmental pollution. Moreover, large amounts of energy, raw materials, and resources are consumed in the production of cement [8].…”

Section: Introductionmentioning

confidence: 99%

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Utilization of Copper–Molybdenum Tailings to Enhance the Compressive Strength of Alkali-Activated Slag-Fly Ash System

Wang,

Gu,

Wang

et al. 2024

Buildings

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Utilizing a variety of solid wastes to prepare alkali-activated cementitious materials is one of the principal trends in the development of cementitious materials. Commonly used alkali activation precursors such as granulated blast furnace slag (GBFS) and fly ash (FA) will be less available due to resource pressures. Supply limitation is an important reason to research alternative precursors. To realize the high value-added utilization of copper–molybdenum tailings (CMTs), this study adopted the modified sodium silicate solution as an alkaline activator to activate GBFS-FA-CMTs cementitious system to prepare alkali-activated cementitious materials. The influence of CMTs content on the compressive strength of GBFS-FA-CMTs cementitious system was analyzed, and the mechanism of GBFS-FA-CMTs cementitious system was also analyzed through hydration product types, physical phase composition, and microscopic morphology. The results indicated that a paste with the incorporation of CMTs, S50F30C20 (50% GBFS, 30% FA, 20% CMTs), achieved the highest compressive strength of 79.14 MPa, which was due to the filling effect of the CMTs and the degree of participation in the reaction. Pastes with different contents of CMTs, while maintaining a constant CBFS content, exhibited similar strength development. Excessive amounts of CMTs could result in reduced compressive strength. Microstructural analysis revealed that the hydration products were structurally altered by the addition of CMTs. In addition to ettringite, quartz, C(-N)-S-H gel, and calcite, gaylussite was also formed; moreover, the mass of chemically bound water increased, and the microstructure of reaction products became denser. An excess of CMTs may restrict the growth of the hydration gel, leading to more microstructural defects. The study suggests that CMTs could enhance the compressive strength of hardened paste within an alkali-activated slag-fly ash system, possibly due to a filling effect and participation in the chemical reaction. This research confirms the feasibility of using CMTs in alkali-activated cementitious materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Utilization of Copper–Molybdenum Tailings to Enhance the Compressive Strength of Alkali-Activated Slag-Fly Ash System

Wang,

Gu,

Wang

et al. 2024

Buildings

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Toward carbon- neutral construction: A review of zero-carbon concrete

Al Khaffaf,

Hawileh,

Sahoo

et al. 2025

Journal of Building Engineering

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Greenhouse Gas Mitigation Potential Through Clean Energy for Cement Production in India

Sahoo,

Kumar

2024

Journal of Solar Energy Engineering

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A preliminary approach has been made to assess the concentrated solar energy applications in cement production as well as greenhouse gas mitigation potential. The work starts with identification of processes that utilizes thermal energy in cement production. Then cluster of cement plants located at different locations of the country has been made. Also, the availability of solar radiation and wind speed at each plant location have been identified. Subsequently, the solar industrial process heating system have been developed for different locations in the country. Further, solar reactor output, number of heliostats, total land area and mirror surface have been estimated. All these estimations are done by considering three types of thermal losses in solar reactor i.e. 15, 30 and 45 percent respectively. Solar energy can provide a total of 738.11 PJ of thermal energy, which is needed to fulfil the process heating requirement of the calcination process for the manufacturing of cement in India. Solar industrial process heating system for cement production in India can reduce yearly CO2 emissions by 2457-7648 thousand tonnes.

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Design of solar cement plant for supplying thermal energy in cement production

Cited by 4 publications

References 15 publications

Utilization of Copper–Molybdenum Tailings to Enhance the Compressive Strength of Alkali-Activated Slag-Fly Ash System

Utilization of Copper–Molybdenum Tailings to Enhance the Compressive Strength of Alkali-Activated Slag-Fly Ash System

Toward carbon- neutral construction: A review of zero-carbon concrete

Greenhouse Gas Mitigation Potential Through Clean Energy for Cement Production in India

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