Life Cycle Assessment of Iron Ore Sintering Process 被引量：1

Life Cycle Assessment of Iron Ore Sintering Process

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摘要 Iron ore sintering is an energy＇intensive process associated with emission of pollutants in iron and steel in- dustry. In order to comprehensively evaluate the environmental impacts of sintering, a detailed life cycle assessment of a sintering plant was conducted. Life cycle inventory showed that, in the production of 1 t sinter ore, 241.53 kg CO2 , 22.68 kg CO, 0. 294 kg SO2 , 0.63 kg NO, , 1.18 /lg dioxin and 0.48 kg dust were discharged. Global war- ming potentials, acidification potentials, photochemical ozone creation potentials and human toxicity potentials were selected as four impact categories, and the evaluation index for the sintering plant was calculated as 3.45 × 10 ^-12. Fi nally, based on the environmental impact analysis, several measures of reducing environmental [oadings of the sinte- ring plant were provided, which included the utilization of denitrification equipment, recirculation of the hot waste gas and process improvement to reduce fuel consumption. Iron ore sintering is an energy＇intensive process associated with emission of pollutants in iron and steel in- dustry. In order to comprehensively evaluate the environmental impacts of sintering, a detailed life cycle assessment of a sintering plant was conducted. Life cycle inventory showed that, in the production of 1 t sinter ore, 241.53 kg CO2 , 22.68 kg CO, 0. 294 kg SO2 , 0.63 kg NO, , 1.18 /lg dioxin and 0.48 kg dust were discharged. Global war- ming potentials, acidification potentials, photochemical ozone creation potentials and human toxicity potentials were selected as four impact categories, and the evaluation index for the sintering plant was calculated as 3.45 × 10 ^-12. Fi nally, based on the environmental impact analysis, several measures of reducing environmental [oadings of the sinte- ring plant were provided, which included the utilization of denitrification equipment, recirculation of the hot waste gas and process improvement to reduce fuel consumption.

作者 Zong-ping LI Xiao-hui FAN Gui-ming YANG Jin-chao WEI Ying SUN Min WANG

机构地区 School of Minerals Processing and Bioengineering Zhongye Changtian International Engineering Co.

出处《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2015年第6期473-477,共5页

基金 Sponsored by Key Project in National Science and Technology Pillar Program during Twelfth Five-year Plan Period of China(2011BAF18B01) Hunan Platform of Youth Science and Technology Innovation and Entrepreneur(2014)

关键词 iron ore sintering plant life cycle assessment pollutant emission environmental loading iron ore sintering plant life cycle assessment pollutant emission environmental loading

分类号 TF521 [冶金工程—钢铁冶金] TF046.4 [冶金工程—冶金物理化学]

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