Greening cement in China: A cost-effective roadmap

Xuewei Liu, Zengwei Yuan, Yuan Xu and Songyan Jiang

Applied Energy, 2017, vol. 189, issue C, 233-244

Abstract: Cement is a critical material for urbanization, but its energy-intensive production creates serious potential environmental impacts. As further air pollutant mitigation become more expensive and difficult, ‘co-control’ measure by new energy-efficient technologies is proposed to bring co-benefits. In this study we conducted a cost-effectiveness analysis to evaluate available new technologies in Chinese cement industry. The analysis verified the findings of recent studies that many technologies have huge co-control potential, but we also found the heterogeneity and conflict in different parameters of certain technologies that has not declared by existing studies. The finding indicates the necessity to design the technology promotion roadmap. We obtained a technology promotion roadmap by establishing a multi-objective optimization model and it proves to be the best solution for achieving energy saving, PM2.5, SO2 and CO2 abatement compared to single-objective optimization models. Furthermore, pollutant emissions and energy consumption of the cement industry under four control scenarios are projected for 2010–2030. Under integrated measure scenario combining technology promotion and product structure adjustment, energy consumption will drop back to 2006–2007 level by 2030. The major air pollutant emissions will be ∼44% lower than business-as-usual scenario and the CO2 emission will be reduced by ∼15%. The annual monetary benefit of technology promotion is estimated to be 396.5 billion RMB Yuan in 2030. The findings verify the co-control strategy and update our understanding of new technologies implementation. The technology promotion roadmap and scenario analysis results are supportable for future policy-making of cement industry.

Keywords: Cement; Air pollution; Energy conservation; Cost-effectiveness analysis; Technology promotion; Multi-objective optimization (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (6)

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DOI: 10.1016/j.apenergy.2016.12.057

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