Multi-objective analysis of the co-mitigation of CO2 and PM2.5 pollution by China's iron and steel industry

JOURNAL OF CLEANER PRODUCTION

卷:185

Article

Yang, Haozhe¹  Liu, Junfeng¹  Jiang, Kejun²  Meng, Jing^1,3  Guan, Dabo⁴  Xu, Yuan⁵  Tao, Shu¹ 

[1] Peking Univ, Coll Urban & Environm Sci, Lab Earth Surface Proc, Beijing, Peoples R China

[2] Energy Res Inst, Beijing 100038, Peoples R China

[3] Univ East Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England

[4] Univ East Anglia, Sch Int Dev, Norwich NR4 7TJ, Norfolk, England

[5] Chinese Univ Hong Kong, Inst Environm Energy & Sustainabil, Dept Geog & Resource Management, Hong Kong, Hong Kong, Peoples R China

关键词: Multi-objective;    Iron and steel;    PM2.5;    CO2 emission reduction;    Emission control;    Abatement cost;   

DOI  :  10.1016/j.jclepro.2018.02.092

来源: Elsevier

【 摘 要 】

China has experienced serious fine particulate matter (PM2.5) pollution in recent years, and carbon dioxide (CO2) emissions must be controlled so that China can keep its pledge to reduce CO2 emissions by 2030. The iron and steel industry is energy intensive and contributes significantly to PM2.5 pollution in China. The simultaneous reduction of CO2 emissions and PM2.5 pollution while minimizing the total mitigation costs remains a crucial issue that must be resolved. Using a multi-objective analysis, we compared potential technology combinations based on various policy preferences and targets. Our results showed that policies designed to mitigate PM2.5 pollution have substantial co-benefits for CO2 emissions reductions. However, policies focused solely on reducing CO2 emissions fail to effectively reduce PM2.5. Furthermore, CO2 emissions reductions correspond to large financial costs, whereas PM2.5 pollution reductions are less expensive. Our results suggest that under limited budgets, decision makers should prioritize PM2.5 reductions because CO2 reductions may be simultaneously achieved. Achieving large decreases in CO2 emissions will require further technological innovations to reduce the cost threshold. Thus, China should focus on reducing PM pollution in the short term and prepare for the expected challenges associated with CO2 reductions in the future. (C) 2018 Published by Elsevier Ltd.

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