Resource productivity enhancement as means for promoting cleaner production: analysis of co-incineration in cement plants through a life cycle approach

Strazza, Carlo; Gallo, Michela; Borghi, Adriana Del

doi:10.1016/j.jclepro.2011.05.014

Cited by 86 publications

(37 citation statements)

References 12 publications

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“…Moreover, the amounts of CO2 emission obtained from the raw materials decarbonation and the consumption of fossil fuels were 55.09% and 44.91% of total CO2 emission during the clinker production, respectively. This result was also consistent with previous studies [5], [34]. They reported that about 60% of CO2 emission from cement production mainly comes from calcination of limestone and the remaining ratios produces from combustion of fossil fuels used to achieve the high temperature required for calcination reaction.…”

Section: Inventory Results Of Conventional Portland Cement Productionsupporting

confidence: 93%

“…The use of coal and lignite in cement kiln operations generally reveals a major contribution of CO2 emissions about 40% of total CO2 emission [5]. However, the cement production process potentially be able to use the industrial waste in partial substitute of fossil fuel [2], [5].…”

Section: Inventory Results Of the Increasing Of Alternative Fuels To mentioning

confidence: 99%

“…[2][3][4]. The primary raw materials for cement producing include limestone, shale, and clay, which are accounted over 90% by weight [5]. The cement production process consists of extraction of raw materials at quarry and mine sites, preparation of raw materials, crushing and burning of raw materials to form clinker, grinding and blending of cement, and transportation.…”

Section: Introductionmentioning

confidence: 99%

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Environmental Benefits of the Integrated Alternative Technologies of the Portland Cement Production: A Case Study in Thailand

Khongprom¹,

Suwanmanee²

2017

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Abstract. Under the 20122050, the International Energy Agency (IEA) and the World Business Council for Sustainable Development (WBCSD) have developed a roadmap for the reduction of energy and carbon intensities in cement production. The aim of this research is to study and evaluate the energy consumption (EN), global warming potential (GWP) impact, and economic assessment of Portland cement production. It was found that the total EN and GWP of conventional process were 3.29 GJ per ton of Portland cement and 0.76 ton CO2 equivalent per ton of Portland cement, respectively. The total cost was 1,346 THB per ton of Portland cement. The largest contribution was from fossil fuels used and the limestone calcination in clinker production which produced the total EN of 83.63% and the total GWP of 91.36%, and the total cost of 63%. In addition, the production of Portland cement was environmentally improved by using low carbon fuels, increasing of alternative fuels to fossil fuels ratio, and increasing of pozzolan to cement ratio. The results showed that all improvements significantly reduce the total EN, GWP, and the total cost. When the using of low carbon fuels, the increasing of alternative fuels to fossil fuels ratio, and the increasing of pozzolan to cement ratio, the EN, GWP, and the total cost were decreased by 1.68%, 18.33%, and 4.39% of the total EN and by 25.35%, 3.06%, and 10.45% of the total GWP, and by 4.6%, 4.12%, and 10.64% of the total cost, respectively.

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Section: Inventory Results Of Conventional Portland Cement Productionsupporting

confidence: 93%

Section: Inventory Results Of the Increasing Of Alternative Fuels To mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Environmental Benefits of the Integrated Alternative Technologies of the Portland Cement Production: A Case Study in Thailand

Khongprom¹,

Suwanmanee²

2017

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“…For example, these studies tell us that the production of ordinary Portland cement commonly results in CO2 emissions exceeding 0.9 tonnes CO2/tonne cement and that each tonne of cement might require input of 1.5-1.6 tonnes of raw materials, 3000-4300+ MJ of fuel energy and 120-160 kWh of electrical energy (EIPPCB, 2013;Nicolas and Jochen, 2008;Price et al, 2010). Furthermore, LCA studies can be utilized to assess and compare the environmental performance of the different types of cement mentioned (Gäbel and Tillman, 2005;Strazza et al, 2011;Valderrama et al, 2012;Van den Heede and De Belie, 2012). However, full scale and detailed LCA studies (in compliance with the ISO 1404x standards) is complicated and time consuming (Wenzel et al, 1997) and thus costly, to gather all the data needed and find case-specific information of good quality.…”

Section: Life Cycle Assessment Of Cementmentioning

confidence: 99%

Improving the CO2 performance of cement, part I: utilizing life-cycle assessment and key performance indicators to assess development within the cement industry

Feiz

Ammenberg

Baas

et al. 2015

Journal of Cleaner Production

186

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Improving the CO2 performance of cement, part I: Utilizing life-cycle assessment and key performance indicators to assess development within the cement industry, 2015, Journal of Cleaner Production, (98) AbstractCement is a vital and commonly used construction material that requires large amounts of resources and the manufacture of which causes significant environmental impact. However, there are many different types of cement products, roughly ranging from traditional products with rather linear resource flows to more synergistic alternatives where industrial byproducts are utilized to a large extent. Life Cycle Assessment (LCA) studies indicate the synergistic products are favorable from an environmental perspective.In co-operation with the global cement producing company CEMEX a research project has been carried out to contribute to a better understanding of the CO2 performance of different ways of producing cement, and different cement products. The focus has been on Cluster West, which is a cement production cluster consisting of three plants in Germany.This paper is the first in a series of three, all of which are included in this special issue. It has two main aims. The first is to carry out an attributional LCA and compare three different cement products produced in both linear and synergistic production setups. This has been done for cradle to gate, focusing on CO2-eq emissions for Cluster West. The second aim of this part is to develop and test a simplified LCA model for this production cluster, with the intention to be able to compare different versions of the production system based on the information of a few parameters.The attributional LCA showed that cement products that contain a large proportion of byproducts, in this case, ground granulated blast furnace slag from the iron and steel industry, had the lowest unit emissions of CO2-eq. The difference between the lowest emission product (CEM III/B) and the highest (CEM I) was about 66% per tonne. A simplified LCA model based on six key performance indicators, instead of approximately 50 parameters for the attributional LCA, was established. It showed that Cluster West currently emits about 45% less CO2-eq per tonne of average product compared to 1997. The simplified LCA model can be used effectively to model future changes of both plants and products (which is further discussed in part II and part III).

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“…Several methods are applied to perform such evaluations, mainly including those using the following procedures [2][3][4][5][6][7][8]: principal component analysis, improved GA neural network, fuzzy comprehensive evaluation analysis, gray clustering analysis, data envelopment analysis, SVM, etc. Based on the research achievements, we have developed several methods and models for analysis [9][10][11][12][13]: life cycle analysis, energy analysis, the ecological footprint, material flow analysis, input-output analysis, ranking model, capital accumulation model, etc. In spite of many research achievements in the evaluation of the circular economy development, there are also limitations in the past research achievements: (1) The microscopic evaluation is much less developed than the macroscopic evaluation; (2) Indicators primarily rely on physical information, and do not include value information; (3) The relation between indicator system and circular economy is fuzzy.…”

Section: Introductionmentioning

confidence: 99%

On Evaluation Model of Circular Economy for Iron and Steel Enterprise Based on Support Vector Machines with Heuristic Algorithm for Tuning Hyper-parameters

Zhou¹,

Chen²,

Xiao³

2013

Appl. Math. Inf. Sci.

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With more severe resource scarcity and environmental problems, the evaluation of circular economy in microcosmic level has become the focus of the academic world. Based on the concept of circular economy, this paper not only structures the evaluation index system of circular economy for iron and steel enterprises, builds the evaluation model of circular economy for iron and steel enterprises based on Support Vector Machine (SVM) with Radial Basis Function (RBF) kernel, but achieves the optimization of kernel function parameters, penalty factors and insensitive parameters based on a heuristic algorithm for tuning hyper-parameters. Furthermore, the evaluation model is tested for circular economy evaluation in the major iron and steel enterprises in China. The research demonstrates that the evaluation results of heuristic algorithm with SVM are more accurate, and this model is more suitable for iron and steel enterprises to evaluate circular economy, compared with the evaluation method of BP neural network.

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Resource productivity enhancement as means for promoting cleaner production: analysis of co-incineration in cement plants through a life cycle approach

Cited by 86 publications

References 12 publications

Environmental Benefits of the Integrated Alternative Technologies of the Portland Cement Production: A Case Study in Thailand

Environmental Benefits of the Integrated Alternative Technologies of the Portland Cement Production: A Case Study in Thailand

Improving the CO2 performance of cement, part I: utilizing life-cycle assessment and key performance indicators to assess development within the cement industry

On Evaluation Model of Circular Economy for Iron and Steel Enterprise Based on Support Vector Machines with Heuristic Algorithm for Tuning Hyper-parameters

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