Analysis of theoretical carbon dioxide emissions from cement production: Methodology and application

Nie, Shuke; Zhou, Jian; Yang, Fan; Lan, Mingzhang; Li, Jinmei; Zhang, Zhenqiu; Chen, Zhifeng; Xu, Meng; Li, Hui; Sanjayan, Jay

doi:10.1016/j.jclepro.2021.130270

Cited by 155 publications

(49 citation statements)

References 30 publications

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“…The reactions occurring in the kiln are described in the literature [ 22 ]. This stage can result in the most intensive energy consumption (based on raw coal and electricity) and the most pollution emissions of the entire production process [ 3 ].…”

Section: Methodsmentioning

confidence: 99%

“…Over the past few years, cement production has surged significantly, reaching 4200 metric tons in 2021, which is projected to increase globally to 4682 metric tons in 2050 [ 2 ]. It was reported that about 1.0–1.2 tons of CO 2 were emitted into the atmosphere for each one ton of produced OPC, which mainly came from the calcination of limestone and the combustion of fuel in the rotary kiln [ 3 ]. Meanwhile, electricity was also required to grind and mill the raw materials and clinker [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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Environmental Benefit Assessment of Blended Cement with Modified Granulated Copper Slag

Zhang

Wang

2022

Materials

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This study aimed to investigate the environmental impact of modified granulated copper slag (MGCS) utilization in blended cement production at a representative cement plant in China. Sensitivity analysis was performed on the substance inputs, and the life cycle impact assessment (LCIA) model was applied. A detailed comparative analysis was conducted of the environmental impact of cement production in other studies, and ordinary Portland cement production at the same cement plant. Results showed that calcination has the largest contribution impact of all the impact categories, especially in causing global warming (93.67%), which was the most prominent impact category. The life cycle assessment (LCA) result of blended cement was sensitive to the chosen LCIA model and the depletion of limestone and energy. In this study, producing blended cement with MGCS effectively mitigated the environmental impact for all the selected impact categories. Results also show a reduction in abiotic depletion (46.50%) and a slight growth (6.52%) in human toxicity. The adoption of MGCS in blended cement would therefore generally decrease the comprehensive environmental impact of cement, which contributes to the development of sustainable building materials.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Environmental Benefit Assessment of Blended Cement with Modified Granulated Copper Slag

Zhang

Wang

2022

Materials

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“…At present, studies on carbon emissions focus mainly on the measurement method, influencing factors, and efficiency of carbon emissions, as well as the trading of carbon emission rights ( Dauda et al, 2021 ; Wu et al, 2021 ). Moreover, from the perspective of carbon emission measurement, there are four main methods: the actual measurement method, mass balance method, factor decomposition method, and IPCC inventory method ( Krisnawati et al, 2021 ; Nie et al, 2022 ). Specifically, the actual measurement method is used mainly in natural ecosystems, with total emissions being calculated according to the flow, speed, concentration, etc., of the emission gas collected through observation.…”

Section: Literature Reviewmentioning

confidence: 99%

Towards sustainable development in China: How do green technology innovation and resource misallocation affect carbon emission performance?

Zhou

Zhang

et al. 2022

Front. Psychol.

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Green technology innovation is an effective way through which to achieve carbon neutrality and sustainable development. Based on provincial panel data of 30 provinces in China from 2005 to 2018, this work examines the tripartite relationship among green technology innovation, resource misallocation, and carbon emission performance by constructing panel regression models and a dynamic threshold panel model. The research results show that green technology innovation significantly improves carbon emission performance. Further analysis shows that both capital and labour misallocation have a negative impact on carbon emission performance and hinder the contribution of green technology innovation to the improvement of carbon emission performance. The regression results show that there is a threshold effect of green technology innovation on carbon emission performance: as the degree of resource misallocation increases, the positive impact of green technology innovation on carbon emission performance gradually decreases. This study provides an important reference for policy-makers in implementing policies to improve carbon emission performance. Policy-makers should continue to promote the level of green technology innovation and improve the efficiency of labour and capital allocation.

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“…Carbon dioxide, present in the atmosphere, plays a vital role in the strengthening process of the lime mortar, which is one of the most beneficial aspects in today's scenario of an over-polluted environment because of massive industrialization and a population that leads to the need for more buildings for the living (Figure 1). These buildings are concrete forests that cause deforestation and over-extraction of resources in and around the environment [9]. The need for building materials that capture CO 2 , SO 2, and other greenhouse gases brings in a huge scope in this research area [2,10].…”

Section: Introductionmentioning

confidence: 99%

Properties of Air Lime Mortar with Bio-Additives

Manoharan

Umarani

2022

Sustainability

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Lime mortar has been a primary binding material in ancient mortar, and is one of the main reasons behind solid and stable constructions that remain stable even after thousands of years. The benefits of lime are innumerable: it is minimally processed and used with a lesser carbon footprint and embodied energy and, most crucially, it is a carbon absorbent. This research experiments with the strength properties (compression) of lime at 28, 56, and 100 days of air curing. The investigation studies the durability using water absorption, UPV test, and carbonation parameters after 100 days of exposure to air. The tested materials are subjected to SEM analysis to find the morphology of the reaction that takes place and the products that are formed. We also performed a comparative study of two different fermented additives by the duration of fermentation (1 day and 10 days) and two different doses of additives (Jaggery and Kadukkai) with air lime. The bio-additives were experimented with using gas chromatography and mass spectroscopy for the formation of new enriching compounds, which improved the qualities of traditional lime mortar. The formation of fat and protein in the additives was found using IS 7219-1973 (a method for the determination of protein in foods and feeds). Using the AOAC method, the presence of fat confirms the improvement in strength and durability properties. The phytochemical analysis details the alkaloids, terpenoids, steroids, phenols, flavonoids, tannins, glycosides, and saponins. Quantification of phenols and flavonoids adds to the beneficial aspects of the fermented additives. The experimental results indicate that using naturally fermented organic materials in the lime has made the structures stronger with the stable build of calcite and vaterite components. The self-healing capacity of lime mortar makes it time resistant.

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Analysis of theoretical carbon dioxide emissions from cement production: Methodology and application

Cited by 155 publications

References 30 publications

Environmental Benefit Assessment of Blended Cement with Modified Granulated Copper Slag

Environmental Benefit Assessment of Blended Cement with Modified Granulated Copper Slag

Towards sustainable development in China: How do green technology innovation and resource misallocation affect carbon emission performance?

Properties of Air Lime Mortar with Bio-Additives

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