Identification of main influencing factors of life cycle CO2 emissions from the integrated steelworks using sensitivity analysis

Huang, Zhijia; Ding, Xiao; Sun, Hao; Liu, Siyue

doi:10.1016/j.jclepro.2010.02.010

Cited by 38 publications

(14 citation statements)

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“…At present, the mill is suffering from the economic crisis and also from several environmental issues that have forced the steelwork's managers to reduce its productive project is still at a feasibility evaluation stage and aims to reach the large-scale industrial production conditions within the next decade. Similarly, Huang et al [15] have built the total CO 2 emission model of a Chinese integrated steel mill on the basis of an LCI. The model was then used to analyse the variation of the greenhouse gas production, via specific software, by varying the inputs to the inventory model.…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of Steel Produced in an Italian Integrated Steel Mill

et al. 2016

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Abstract:The purpose of this work is to carry out an accurate and extensive environmental analysis of the steel production occurring in in the largest integrated EU steel mill, located in the city of Taranto in southern Italy. The end goal is that of highlighting the steelworks' main hot spots and identifying potential options for environmental improvement. The development for such an analysis is based on a Life Cycle Assessment (LCA) of steel production with a cradle to casting plant gate approach that covers the stages from raw material extraction to solid steel slab production. The inventory results have highlighted the large solid waste production, especially in terms of slag, which could be reused in other industries as secondary raw materials. Other reuses, in accordance with the circular economy paradigm, could encompass the energy waste involved in the steelmaking process. The most burdening lifecycle phases are the ones linked to blast furnace and coke oven operations. Specifically, the impact categories are influenced by the energy consumption and also by the toxicity of the emissions associated with the lifecycle of steel production. A detailed analysis of the toxicity impacts indicates that LCA is still not perfectly suitable for toxicity assessments and should be coupled with other more site specific studies in order to understand such aspects fully. Overall, the results represent a first step to understanding the current levels of sustainability of the steelworks, which should be used as a starting point for the development both of pollution control measures and of symbiotic waste reutilization scenarios needed to maintain the competitiveness of the industrial plant.

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Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of Steel Produced in an Italian Integrated Steel Mill

et al. 2016

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“…In this study, the atmospheric discharge, including dust discharge and gas emissions, is emphasised; these discharges mainly originate from burning of fuels, generation of electricity and physiochemical reactions, amongst others (Huang et al, 2010;Zhang et al, 2012). …”

Section: Lcimentioning

confidence: 99%

Life cycle assessment of the comprehensive utilisation of vanadium titano-magnetite

Chen

Chu

et al. 2015

Journal of Cleaner Production

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a b s t r a c tThis study describes the life cycle assessment (LCA) of the comprehensive utilisation of vanadium titanomagnetite (VTM) through the integrated steel production and valuable element (V and Ti) extraction route. The major sources of environmental impacts are described and pollution prevention methods are proposed. The LCA methodology is based on the ISO 14044 standard, which uses GaBi 6.0 software and the Ecoinvent database, and the life cycle inventory (LCI) data (input and output) are from Pan. Steel. Impact assessment results indicate that production of pig iron in blast furnace (BF) exerts the most extensive impacts on global warming potential for the time horizon of 100 years (GWP 100 ) and fossil fuel consumption. By contrast, iron ore mining dressing and sintering contribute the most to acidification potential (AP), eutrophication potential (EP) and photochemical ozone creation potential (PCOP) because of dust and pollutant gas emissions. When indicator contributions are considered, the observed impacts on AP (50.88%), GWP 100 (24.25%) and photochemical ozone creation potential (POCP) (19.51%) are higher than those on EP, human toxic potential (HTP) and abiotic depletion potential (ADP). Therefore, when processes with environmental impacts are taken into account, the iron mining and dressing, iron ore sintering and BF iron-making processes must be considered, when category indicators are taken into account, AP, GWP 100 and POCP must be considered.

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“…To assess the environmental impact of the steel industry Life Cycle Assessment (LCA) (Burchart-Korol, 2013;Norgate et al, 2007;Vadenbo et al, 2013) have been carried out and extensive Life Cycle Inventory (LCI) data has been collected (Bieda, 2012;Huang et al, 2010;Jing et al, 2014). Spengler et al (1998) developed a Multi Criteria Decision Making (MCDM) concept to support environmental assessment of recycling measures in the iron and steel industry.…”

Section: Introductionmentioning

confidence: 99%