Energy-related CO2 emissions in the China’s iron and steel industry: A global supply chain analysis

Peng, Jiaying; Xie, Rui; Lai, Mingyong

doi:10.1016/j.resconrec.2016.09.019

Cited by 81 publications

(19 citation statements)

References 45 publications

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“…At present, many ways of ironmaking are occupied in the world, and the blast furnace ironmaking accounts for almost 70% of the world's pig iron production [4]. In 2016, the total energy consumption of blast furnace ironmaking gained 1.11% compared to2015 and reached 73.5% of the total energy consumption of the iron and steel enterprises in China [5]; blast furnace ironmaking is the main energy consumption and emission process in the iron and steel industry [6][7][8]. Therefore, 2 of 16 reducing blast furnace energy consumption has always been the focus of energy saving and emission reduction in the iron and steel industry [9].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Particle Size of Iron Ore on the Pyrolysis Kinetic Behaviour of Coal-Iron Ore Briquettes

Zheng

Wang

et al. 2018

Energies

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High reactivity coke is beneficial for achieving low carbon emission blast furnace ironmaking. Therefore, the preparation of highly reactive ferro-coke has aroused widespread attention. However, the effects of the particle size of iron ore on the pyrolysis behaviour of a coal-iron ore briquette are still unclear. In this study, the effect of three particle sizes (0.50–1.00 mm, 0.25–0.50 mm and <0.74 mm) of iron ore on the thermal and kinetic behaviours of coal-iron ore briquettes were investigated by non-isothermal kinetic analysis. The results showed that the synergistic effect of iron ore and coal during coking mainly occurred during the later reaction stage (850–1100 °C) and smaller particle sizes of iron ore have a stronger synergistic effect. The addition of iron ore had little effect on T0 (the initial temperature) and Tp (the temperature at the maximum conversion rate) of briquette pyrolysis, however itgreatly affected the conversion rate and Tf (the final temperature) of the briquettes. T0 decreased with the decrease of iron ore particle sizes, while Tp and Tf showed opposite trends. After adding iron ore into the coal briquette, the reaction kinetics at all stages of the coal-iron ore briquettes changed. The weighted apparent activation energy of the caking coal (JM) briquette was 35.532 kJ/mol, which is lower than that of the coal-iron ore briquettes (38.703–55.627 kJ/mol). In addition, the weighted apparent activation energy gradually increased with decreasing iron ore particle sizes.

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Section: Introductionmentioning

confidence: 99%

Effect of the Particle Size of Iron Ore on the Pyrolysis Kinetic Behaviour of Coal-Iron Ore Briquettes

Zheng

Wang

et al. 2018

Energies

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“…To facilitate understanding of the link between production and consumption, Structural Path Analysis (SPA) has been extensively employed, which extracts individual supply chains instigated by final demand (Llop and Ponce-Alifonso, 2015;Zhang et al, 2017a;Peng et al, 2018). On the basis of emissions data, an SPA quantifies the emissions starting from the end of each supply chain (Liang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

The temporal variation of SO2 emissions embodied in Chinese supply chains, 2002–2012

Yang

Zhang

Fan

et al. 2018

Environmental Pollution

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Whilst attention is increasingly being focused on embodied pollutant emissions along supply chains in China, relatively little attention has been paid to dynamic changes in this process. This study utilized environmental extended input-output analysis (EEIOA) and structural path analysis (SPA) to investigate the dynamic variation of the SO emissions embodied in 28 economic sectors in Chinese supply chains during 2002-2012. The main conclusions are summarized as follows: (1) The dominant SO emission sectors differed under production and consumption perspectives. Electricity and heat production dominated SO emissions from the point of view of production, while construction contributed most from the consumption perspective. (2) The embodied SO emissions tended to change from the path (staring from consumption side to production side): "Services→Services→Power" in 2002 to the path: "Construction and Manufacturing→Metal and Nonmetal→Power" in 2012. (3) Metal-driven emissions raised dramatically from 15% in 2002 to 22% in 2012, due to increasing demand for metal products in construction and manufacturing activities. (4) Power generation was found to result in the greatest volume of production-based emissions, a burden it tended to transfer to upstream sectors in 2012. Controlling construction activities and cutting down end-of-pipe discharges in the process of power generation represent the most radical interventions in reducing Chinese SO emissions. This study shed light on changes in SO emissions in the supply chain, providing a range of policy implications from both production and consumption perspectives.

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“…Siitonen et al (2010) analysed the variables affecting CO2 emissions from the iron and steel industry. Many other researchers assessed the trend of CO2 emission, especially for the energy-related CO2 emissions (Peng et al, 2018), for the iron and steel industry of China (An et al, 2018;Wang et al, 2017;Xu et al, 2016), Japan (Kuramochi, 2016), India (Das and Kandpal, 1998) and Thailand (Sodsai and Rachdawong, 2012). Taking China as an example, annual CO2 emissions from the Chinese iron and steel industry are approximately 1.6 billion tonnes (Zhang et al, 2018).…”

Section: Literature Reviewmentioning

confidence: 99%

Assessment of multi-air emissions: Case of particulate matter (dust), SO2, NO and CO2 from iron and steel industry of China

Zhou

2019

Journal of Cleaner Production

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Industrial activities are generally energy and air emissions intensive, requiring bulky inputs of raw materials and fossil fuels and emitting huge waste gases including particulate matter (PM, or dust), sulphur dioxide (SO2), nitrogen oxides (NOx), carbon dioxide (CO2), and other substances, which are severely damaging the environment. Many studies have been carried out on the quantification of the concentrations of these air emissions. Although there are studies published on the co-effect of multi-air emissions, a more fair and comprehensive method for assessing the environmental impact of multi-air emissions is still lacking, which can simultaneously consider the flow rate of waste gases, the availability of emitting sources and the concentrations of all emission substances. In this work, a Total Environmental Impact Score (TEIS) approach is proposed to assess the environmental impact of the main industrial processes of an integrated iron and steel site located in the northeast of China. Besides the concentration of each air emission substance, this TEIS approach also combines the flow rate of waste gases and the availability of emitting sources. It is shown that the processes in descending order by the values of TEIS are sintering, ironmaking,

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Energy-related CO2 emissions in the China’s iron and steel industry: A global supply chain analysis

Cited by 81 publications

References 45 publications

Effect of the Particle Size of Iron Ore on the Pyrolysis Kinetic Behaviour of Coal-Iron Ore Briquettes

Effect of the Particle Size of Iron Ore on the Pyrolysis Kinetic Behaviour of Coal-Iron Ore Briquettes

The temporal variation of SO2 emissions embodied in Chinese supply chains, 2002–2012

Assessment of multi-air emissions: Case of particulate matter (dust), SO2, NO and CO2 from iron and steel industry of China

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