Integrated assessment of CO2 reduction technologies in China's cement industry
Integrated assessment of CO2 reduction technologies in China's cement industry
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DOI：
10.1016/j.ijggc.2013.10.004
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发表时间：
2014
影响因子：
3.9
通讯作者：
Yufei Wang;S. Höller;P. Viebahn;Z. Hao
中科院分区：
文献类型：
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作者：
Yufei Wang;S. Höller;P. Viebahn;Z. Hao
本文的主要目的是评估中国水泥行业的二氧化碳减排潜力并计算通过使用不同的二氧化碳减排技术所避免的成本，即提高能源效率、使用替代燃料、熟料替代以及碳捕获和封存（CCS）。根据未来 40 年（2010-2050 年）水泥产量和技术发展的预测，设计了三种情景。到 2050 年，基本情景和两种低碳情景将总共减少 2.5、4.7 和 4.3 Gt 吨二氧化碳。通过比较这些情景下的技术，可以得出结论，减少二氧化碳排放主要可以通过提高能源效率和使用替代燃料来实现。熟料替代可以降低熟料与水泥的比例以及能源强度，从而带来显着的成本优势。 CCS，包括燃烧后捕集和富氧燃烧捕集，可以在水泥行业二氧化碳捕集方面发挥重要作用，预计到2030年将投入商业使用。
The main objective of this article is to evaluate CO2mitigation potential and to calculate costs avoided by the use of different CO2mitigation technologies in China's cement sector, namely energy efficiency improvements, use of alternative fuels, clinker substitution and carbon capture and storage (CCS). Three scenarios are designed based on the projection of cement output and technology development over the next 40 years (2010–2050). 2.5, 4.7 and 4.3 Gt tonnes of CO2will be saved totally in basic scenario and two low carbon scenarios up to 2050. By comparing these technologies along the scenarios, it can be concluded that CO2emissions can mainly be reduced by energy efficiency improvements and use of alternative fuels. Clinker substitution, which reduces the clinker-to-cement ratio as well as energy intensity, results in significant cost advantages. CCS, including post-combustion capture and oxy-fuel combustion capture, could play an important role in the capture of CO2in the cement industry, and is expected to be in commercial use by 2030.